/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
'use strict';

import * as assert from 'assert';
import {Cursor} from 'vs/editor/common/controller/cursor';
import {EditOperation} from 'vs/editor/common/core/editOperation';
import {Position} from 'vs/editor/common/core/position';
import {Range} from 'vs/editor/common/core/range';
import {Selection} from 'vs/editor/common/core/selection';
import {
	EndOfLinePreference, EventType, Handler, IPosition, ISelection, IEditorOptions,
	DefaultEndOfLine, ITextModelCreationOptions, ICommand,
	ITokenizedModel, IEditOperationBuilder, ICursorStateComputerData, CursorMoveViewPosition
} from 'vs/editor/common/editorCommon';
import {Model} from 'vs/editor/common/model/model';
import {IMode, IndentAction} from 'vs/editor/common/modes';
import {LanguageConfigurationRegistry} from 'vs/editor/common/modes/languageConfigurationRegistry';
import {MockConfiguration} from 'vs/editor/test/common/mocks/mockConfiguration';
import {BracketMode} from 'vs/editor/test/common/testModes';
import {MockMode} from 'vs/editor/test/common/mocks/mockMode';

let H = Handler;

// --------- utils

function cursorCommand(cursor: Cursor, command: string, extraData?: any, overwriteSource?: string) {
	cursor.trigger(overwriteSource || 'tests', command, extraData);
}

// Move command

function move(cursor: Cursor, args: any) {
	cursorCommand(cursor, H.CursorMove, args);
}

function moveToLineStart(cursor: Cursor) {
	move(cursor, {to: CursorMoveViewPosition.LineStart});
}

function moveToLineFirstNonWhiteSpaceCharacter(cursor: Cursor) {
	move(cursor, {to: CursorMoveViewPosition.LineFirstNonWhitespaceCharacter});
}

function moveToLineCenter(cursor: Cursor) {
	move(cursor, {to: CursorMoveViewPosition.LineColumnCenter});
}

function moveToLineEnd(cursor: Cursor) {
	move(cursor, {to: CursorMoveViewPosition.LineEnd});
}

function moveToLineLastNonWhiteSpaceCharacter(cursor: Cursor) {
	move(cursor, {to: CursorMoveViewPosition.LineLastNonWhitespaceCharacter});
}

function moveToPosition(cursor: Cursor, lineNumber: number, column: number) {
	move(cursor, {to: new Position(lineNumber, column)});
}

function moveTo(cursor: Cursor, lineNumber: number, column: number, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.MoveToSelect : H.MoveTo, { position: new Position(lineNumber, column) });
}

function moveLeft(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorLeftSelect : H.CursorLeft);
}

function moveWordLeft(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorWordLeftSelect : H.CursorWordLeft);
}
function moveWordStartLeft(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorWordStartLeftSelect : H.CursorWordStartLeft);
}
function moveWordEndLeft(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorWordEndLeftSelect : H.CursorWordEndLeft);
}

function moveRight(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorRightSelect : H.CursorRight);
}

function moveWordRight(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorWordRightSelect : H.CursorWordRight);
}
function moveWordEndRight(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorWordEndRightSelect : H.CursorWordEndRight);
}
function moveWordStartRight(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorWordStartRightSelect : H.CursorWordStartRight);
}

function moveDown(cursor: Cursor, linesCount: number, inSelectionMode: boolean = false) {
	if (linesCount === 1) {
		cursorCommand(cursor, inSelectionMode ? H.CursorDownSelect : H.CursorDown);
	} else {
		cursorCommand(cursor, inSelectionMode ? H.CursorPageDownSelect : H.CursorPageDown, { pageSize: linesCount });
	}
}

function moveUp(cursor: Cursor, linesCount: number, inSelectionMode: boolean = false) {
	if (linesCount === 1) {
		cursorCommand(cursor, inSelectionMode ? H.CursorUpSelect : H.CursorUp);
	} else {
		cursorCommand(cursor, inSelectionMode ? H.CursorPageUpSelect : H.CursorPageUp, { pageSize: linesCount });
	}
}

function moveToBeginningOfLine(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorHomeSelect : H.CursorHome);
}

function moveToEndOfLine(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ?  H.CursorEndSelect : H.CursorEnd);
}

function moveToBeginningOfBuffer(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorTopSelect : H.CursorTop);
}

function moveToEndOfBuffer(cursor: Cursor, inSelectionMode: boolean = false) {
	cursorCommand(cursor, inSelectionMode ? H.CursorBottomSelect : H.CursorBottom);
}

function deleteWordLeft(cursor: Cursor) {
	cursorCommand(cursor, H.DeleteWordLeft);
}
function deleteWordStartLeft(cursor: Cursor) {
	cursorCommand(cursor, H.DeleteWordStartLeft);
}
function deleteWordEndLeft(cursor: Cursor) {
	cursorCommand(cursor, H.DeleteWordEndLeft);
}

function deleteWordRight(cursor: Cursor) {
	cursorCommand(cursor, H.DeleteWordRight);
}
function deleteWordStartRight(cursor: Cursor) {
	cursorCommand(cursor, H.DeleteWordStartRight);
}
function deleteWordEndRight(cursor: Cursor) {
	cursorCommand(cursor, H.DeleteWordEndRight);
}

function positionEqual(position:IPosition, lineNumber: number, column: number) {
	assert.deepEqual({
		lineNumber: position.lineNumber,
		column: position.column
	}, {
		lineNumber: lineNumber,
		column: column
	}, 'position equal');
}

function selectionEqual(selection:ISelection, posLineNumber: number, posColumn: number, selLineNumber: number, selColumn: number) {
	assert.deepEqual({
		selectionStartLineNumber: selection.selectionStartLineNumber,
		selectionStartColumn: selection.selectionStartColumn,
		positionLineNumber: selection.positionLineNumber,
		positionColumn: selection.positionColumn
	}, {
		selectionStartLineNumber: selLineNumber,
		selectionStartColumn: selColumn,
		positionLineNumber: posLineNumber,
		positionColumn: posColumn
	}, 'selection equal');
}

function cursorEqual(cursor: Cursor, posLineNumber: number, posColumn: number, selLineNumber: number = posLineNumber, selColumn: number = posColumn) {
	positionEqual(cursor.getPosition(), posLineNumber, posColumn);
	selectionEqual(cursor.getSelection(), posLineNumber, posColumn, selLineNumber, selColumn);
}

function cursorEquals(cursor: Cursor, selections: Selection[]): void {
	let actual = cursor.getSelections().map(s => s.toString());
	let expected = selections.map(s => s.toString());

	assert.deepEqual(actual, expected);
}

suite('Editor Controller - Cursor', () => {
	const LINE1 = '    \tMy First Line\t ';
	const LINE2 = '\tMy Second Line';
	const LINE3 = '    Third Line💩';
	const LINE4 = '';
	const LINE5 = '1';

	let thisModel: Model;
	let thisConfiguration: MockConfiguration;
	let thisCursor: Cursor;

	setup(() => {
		let text =
			LINE1 + '\r\n' +
			LINE2 + '\n' +
			LINE3 + '\n' +
			LINE4 + '\r\n' +
			LINE5;

		thisModel = Model.createFromString(text);
		thisConfiguration = new MockConfiguration(null);
		thisCursor = new Cursor(1, thisConfiguration, thisModel, null, false);
	});

	teardown(() => {
		thisCursor.dispose();
		thisModel.dispose();
		thisConfiguration.dispose();
	});

	test('cursor initialized', () => {
		cursorEqual(thisCursor, 1, 1);
	});

	// --------- absolute move

	test('no move', () => {
		moveTo(thisCursor, 1, 1);
		cursorEqual(thisCursor, 1, 1);
	});

	// --------- move to first character of line

	test('move to first character of line from middle', () => {
		moveTo(thisCursor, 1, 8);
		moveToLineStart(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to first character of line from first non white space character', () => {
		moveTo(thisCursor, 1, 6);
		moveToLineStart(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to first character of line from first character', () => {
		moveTo(thisCursor, 1, 1);
		moveToLineStart(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to first non white space character of line from middle', () => {
		moveTo(thisCursor, 1, 8);
		moveToLineFirstNonWhiteSpaceCharacter(thisCursor);
		cursorEqual(thisCursor, 1, 6);
	});

	test('move to first non white space character of line from first non white space character', () => {
		moveTo(thisCursor, 1, 6);
		moveToLineFirstNonWhiteSpaceCharacter(thisCursor);
		cursorEqual(thisCursor, 1, 6);
	});

	test('move to first non white space character of line from first character', () => {
		moveTo(thisCursor, 1, 1);
		moveToLineFirstNonWhiteSpaceCharacter(thisCursor);
		cursorEqual(thisCursor, 1, 6);
	});

	test('move to end of line from middle', () => {
		moveTo(thisCursor, 1, 8);
		moveToLineEnd(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
	});

	test('move to end of line from last non white space character', () => {
		moveTo(thisCursor, 1, LINE1.length - 1);
		moveToLineEnd(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
	});

	test('move to end of line from line end', () => {
		moveTo(thisCursor, 1, LINE1.length + 1);
		moveToLineEnd(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
	});

	test('move to last non white space character from middle', () => {
		moveTo(thisCursor, 1, 8);
		moveToLineLastNonWhiteSpaceCharacter(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length - 1);
	});

	test('move to last non white space character from last non white space character', () => {
		moveTo(thisCursor, 1, LINE1.length - 1);
		moveToLineLastNonWhiteSpaceCharacter(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length - 1);
	});

	test('move to last non white space character from line end', () => {
		moveTo(thisCursor, 1, LINE1.length + 1);
		moveToLineLastNonWhiteSpaceCharacter(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length - 1);
	});

	test('move to center of line not from center', () => {
		moveTo(thisCursor, 1, 8);
		moveToLineCenter(thisCursor);
		cursorEqual(thisCursor, 1, 11);
	});

	test('move to center of line from center', () => {
		moveTo(thisCursor, 1, 11);
		moveToLineCenter(thisCursor);
		cursorEqual(thisCursor, 1, 11);
	});

	test('move to center of line from start', () => {
		moveToLineStart(thisCursor);
		moveToLineCenter(thisCursor);
		cursorEqual(thisCursor, 1, 11);
	});

	test('move to center of line from end', () => {
		moveToLineEnd(thisCursor);
		moveToLineCenter(thisCursor);
		cursorEqual(thisCursor, 1, 11);
	});

	test('move to position', () => {
		moveToPosition(thisCursor, 3, 10);
		cursorEqual(thisCursor, 3, 10);
	});

	test('move', () => {
		moveTo(thisCursor, 1, 2);
		cursorEqual(thisCursor, 1, 2);
	});

	test('move in selection mode', () => {
		moveTo(thisCursor, 1, 2, true);
		cursorEqual(thisCursor, 1, 2, 1, 1);
	});

	test('move beyond line end', () => {
		moveTo(thisCursor, 1, 25);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
	});

	test('move empty line', () => {
		moveTo(thisCursor, 4, 20);
		cursorEqual(thisCursor, 4, 1);
	});

	test('move one char line', () => {
		moveTo(thisCursor, 5, 20);
		cursorEqual(thisCursor, 5, 2);
	});

	test('selection down', () => {
		moveTo(thisCursor, 2, 1, true);
		cursorEqual(thisCursor, 2, 1, 1, 1);
	});

	test('move and then select', () => {
		moveTo(thisCursor, 2, 3);
		cursorEqual(thisCursor, 2, 3);

		moveTo(thisCursor, 2, 15, true);
		cursorEqual(thisCursor, 2, 15, 2, 3);

		moveTo(thisCursor, 1, 2, true);
		cursorEqual(thisCursor, 1, 2, 2, 3);
	});

	// --------- move left

	test('move left on top left position', () => {
		moveLeft(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move left', () => {
		moveTo(thisCursor, 1, 3);
		cursorEqual(thisCursor, 1, 3);
		moveLeft(thisCursor);
		cursorEqual(thisCursor, 1, 2);
	});

	test('move left with surrogate pair', () => {
		moveTo(thisCursor, 3, 17);
		cursorEqual(thisCursor, 3, 17);
		moveLeft(thisCursor);
		cursorEqual(thisCursor, 3, 15);
	});

	test('move left goes to previous row', () => {
		moveTo(thisCursor, 2, 1);
		cursorEqual(thisCursor, 2, 1);
		moveLeft(thisCursor);
		cursorEqual(thisCursor, 1, 21);
	});

	test('move left selection', () => {
		moveTo(thisCursor, 2, 1);
		cursorEqual(thisCursor, 2, 1);
		moveLeft(thisCursor, true);
		cursorEqual(thisCursor, 1, 21, 2, 1);
	});

	// --------- move word left

	test('move word left', () => {
		moveTo(thisCursor, 5, 2);
		let expectedStops = [
			[5, 1],
			[4, 1],
			[3, 11],
			[3, 5],
			[3, 1],
			[2, 12],
			[2, 5],
			[2, 2],
			[2, 1],
			[1, 15],
			[1, 9],
			[1, 6],
			[1, 1],
			[1, 1],
		];

		let actualStops:number[][] = [];
		for (let i = 0; i < expectedStops.length; i++) {
			moveWordLeft(thisCursor);
			let pos = thisCursor.getPosition();
			actualStops.push([pos.lineNumber, pos.column]);
		}

		assert.deepEqual(actualStops, expectedStops);
	});

	test('move word left selection', () => {
		moveTo(thisCursor, 5, 2);
		cursorEqual(thisCursor, 5, 2);
		moveWordLeft(thisCursor, true);
		cursorEqual(thisCursor, 5, 1, 5, 2);
	});

	// --------- move right

	test('move right on bottom right position', () => {
		moveTo(thisCursor, 5, 2);
		cursorEqual(thisCursor, 5, 2);
		moveRight(thisCursor);
		cursorEqual(thisCursor, 5, 2);
	});

	test('move right', () => {
		moveTo(thisCursor, 1, 3);
		cursorEqual(thisCursor, 1, 3);
		moveRight(thisCursor);
		cursorEqual(thisCursor, 1, 4);
	});

	test('move right with surrogate pair', () => {
		moveTo(thisCursor, 3, 15);
		cursorEqual(thisCursor, 3, 15);
		moveRight(thisCursor);
		cursorEqual(thisCursor, 3, 17);
	});

	test('move right goes to next row', () => {
		moveTo(thisCursor, 1, 21);
		cursorEqual(thisCursor, 1, 21);
		moveRight(thisCursor);
		cursorEqual(thisCursor, 2, 1);
	});

	test('move right selection', () => {
		moveTo(thisCursor, 1, 21);
		cursorEqual(thisCursor, 1, 21);
		moveRight(thisCursor, true);
		cursorEqual(thisCursor, 2, 1, 1, 21);
	});

	// --------- move word right

	test('move word right', () => {
		moveTo(thisCursor, 1, 1);
		let expectedStops = [
			[1, 8],
			[1, 14],
			[1, 19],
			[1, 21],
			[2, 4],
			[2, 11],
			[2, 16],
			[3, 10],
			[3, 17],
			[4, 1],
			[5, 2],
			[5, 2],
		];

		let actualStops:number[][] = [];
		for (let i = 0; i < expectedStops.length; i++) {
			moveWordRight(thisCursor);
			let pos = thisCursor.getPosition();
			actualStops.push([pos.lineNumber, pos.column]);
		}

		assert.deepEqual(actualStops, expectedStops);
	});

	test('move word right selection', () => {
		moveTo(thisCursor, 1, 1);
		cursorEqual(thisCursor, 1, 1);
		moveWordRight(thisCursor, true);
		cursorEqual(thisCursor, 1, 8, 1, 1);
	});
	// --------- move down

	test('move down', () => {
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 2, 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 3, 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 4, 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 5, 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 5, 2);
	});

	test('move down with selection', () => {
		moveDown(thisCursor, 1, true);
		cursorEqual(thisCursor, 2, 1, 1, 1);
		moveDown(thisCursor, 1, true);
		cursorEqual(thisCursor, 3, 1, 1, 1);
		moveDown(thisCursor, 1, true);
		cursorEqual(thisCursor, 4, 1, 1, 1);
		moveDown(thisCursor, 1, true);
		cursorEqual(thisCursor, 5, 1, 1, 1);
		moveDown(thisCursor, 1, true);
		cursorEqual(thisCursor, 5, 2, 1, 1);
	});

	test('move down with tabs', () => {
		moveTo(thisCursor, 1, 5);
		cursorEqual(thisCursor, 1, 5);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 2, 2);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 3, 5);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 4, 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 5, 2);
	});

	// --------- move up

	test('move up', () => {
		moveTo(thisCursor, 3, 5);
		cursorEqual(thisCursor, 3, 5);

		moveUp(thisCursor, 1);
		cursorEqual(thisCursor, 2, 2);

		moveUp(thisCursor, 1);
		cursorEqual(thisCursor, 1, 5);
	});

	test('move up with selection', () => {
		moveTo(thisCursor, 3, 5);
		cursorEqual(thisCursor, 3, 5);

		moveUp(thisCursor, 1, true);
		cursorEqual(thisCursor, 2, 2, 3, 5);

		moveUp(thisCursor, 1, true);
		cursorEqual(thisCursor, 1, 5, 3, 5);
	});

	test('move up and down with tabs', () => {
		moveTo(thisCursor, 1, 5);
		cursorEqual(thisCursor, 1, 5);
		moveDown(thisCursor, 4);
		cursorEqual(thisCursor, 5, 2);
		moveUp(thisCursor, 1);
		cursorEqual(thisCursor, 4, 1);
		moveUp(thisCursor, 1);
		cursorEqual(thisCursor, 3, 5);
		moveUp(thisCursor, 1);
		cursorEqual(thisCursor, 2, 2);
		moveUp(thisCursor, 1);
		cursorEqual(thisCursor, 1, 5);
	});

	test('move up and down with end of lines starting from a long one', () => {
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length - 1);
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 2, LINE2.length + 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 3, LINE3.length + 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 4, LINE4.length + 1);
		moveDown(thisCursor, 1);
		cursorEqual(thisCursor, 5, LINE5.length + 1);
		moveUp(thisCursor, 4);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
	});

	// --------- move to beginning of line

	test('move to beginning of line', () => {
		moveToBeginningOfLine(thisCursor);
		cursorEqual(thisCursor, 1, 6);
		moveToBeginningOfLine(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to beginning of line from within line', () => {
		moveTo(thisCursor, 1, 8);
		moveToBeginningOfLine(thisCursor);
		cursorEqual(thisCursor, 1, 6);
		moveToBeginningOfLine(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to beginning of line from whitespace at beginning of line', () => {
		moveTo(thisCursor, 1, 2);
		moveToBeginningOfLine(thisCursor);
		cursorEqual(thisCursor, 1, 1);
		moveToBeginningOfLine(thisCursor);
		cursorEqual(thisCursor, 1, 6);
	});

	test('move to beginning of line from within line selection', () => {
		moveTo(thisCursor, 1, 8);
		moveToBeginningOfLine(thisCursor, true);
		cursorEqual(thisCursor, 1, 6, 1, 8);
		moveToBeginningOfLine(thisCursor, true);
		cursorEqual(thisCursor, 1, 1, 1, 8);
	});

	// --------- move to end of line

	test('move to end of line', () => {
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length - 1);
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
	});

	test('move to end of line from within line', () => {
		moveTo(thisCursor, 1, 6);
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length - 1);
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
	});

	test('move to end of line from whitespace at end of line', () => {
		moveTo(thisCursor, 1, 20);
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length + 1);
		moveToEndOfLine(thisCursor);
		cursorEqual(thisCursor, 1, LINE1.length - 1);
	});

	test('move to end of line from within line selection', () => {
		moveTo(thisCursor, 1, 6);
		moveToEndOfLine(thisCursor, true);
		cursorEqual(thisCursor, 1, LINE1.length - 1, 1, 6);
		moveToEndOfLine(thisCursor, true);
		cursorEqual(thisCursor, 1, LINE1.length + 1, 1, 6);
	});

	// --------- move to beginning of buffer

	test('move to beginning of buffer', () => {
		moveToBeginningOfBuffer(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to beginning of buffer from within first line', () => {
		moveTo(thisCursor, 1, 3);
		moveToBeginningOfBuffer(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to beginning of buffer from within another line', () => {
		moveTo(thisCursor, 3, 3);
		moveToBeginningOfBuffer(thisCursor);
		cursorEqual(thisCursor, 1, 1);
	});

	test('move to beginning of buffer from within first line selection', () => {
		moveTo(thisCursor, 1, 3);
		moveToBeginningOfBuffer(thisCursor, true);
		cursorEqual(thisCursor, 1, 1, 1, 3);
	});

	test('move to beginning of buffer from within another line selection', () => {
		moveTo(thisCursor, 3, 3);
		moveToBeginningOfBuffer(thisCursor, true);
		cursorEqual(thisCursor, 1, 1, 3, 3);
	});

	// --------- move to end of buffer

	test('move to end of buffer', () => {
		moveToEndOfBuffer(thisCursor);
		cursorEqual(thisCursor, 5, LINE5.length + 1);
	});

	test('move to end of buffer from within last line', () => {
		moveTo(thisCursor, 5, 1);
		moveToEndOfBuffer(thisCursor);
		cursorEqual(thisCursor, 5, LINE5.length + 1);
	});

	test('move to end of buffer from within another line', () => {
		moveTo(thisCursor, 3, 3);
		moveToEndOfBuffer(thisCursor);
		cursorEqual(thisCursor, 5, LINE5.length + 1);
	});

	test('move to end of buffer from within last line selection', () => {
		moveTo(thisCursor, 5, 1);
		moveToEndOfBuffer(thisCursor, true);
		cursorEqual(thisCursor, 5, LINE5.length + 1, 5, 1);
	});

	test('move to end of buffer from within another line selection', () => {
		moveTo(thisCursor, 3, 3);
		moveToEndOfBuffer(thisCursor, true);
		cursorEqual(thisCursor, 5, LINE5.length + 1, 3, 3);
	});

	// --------- delete word left/right

	test('delete word left for non-empty selection', () => {
		moveTo(thisCursor, 3, 7);
		moveRight(thisCursor, true);
		moveRight(thisCursor, true);
		deleteWordLeft(thisCursor);
		assert.equal(thisModel.getLineContent(3), '    Thd Line💩');
		cursorEqual(thisCursor, 3, 7);
	});

	test('delete word left for caret at beginning of document', () => {
		moveTo(thisCursor, 1, 1);
		deleteWordLeft(thisCursor);
		assert.equal(thisModel.getLineContent(1), '    \tMy First Line\t ');
		cursorEqual(thisCursor, 1, 1);
	});

	test('delete word left for caret at end of whitespace', () => {
		moveTo(thisCursor, 3, 11);
		deleteWordLeft(thisCursor);
		assert.equal(thisModel.getLineContent(3), '    Line💩');
		cursorEqual(thisCursor, 3, 5);
	});

	test('delete word left for caret just behind a word', () => {
		moveTo(thisCursor, 2, 11);
		deleteWordLeft(thisCursor);
		assert.equal(thisModel.getLineContent(2), '\tMy  Line');
		cursorEqual(thisCursor, 2, 5);
	});

	test('delete word left for caret inside of a word', () => {
		moveTo(thisCursor, 1, 12);
		deleteWordLeft(thisCursor);
		assert.equal(thisModel.getLineContent(1), '    \tMy st Line\t ');
		cursorEqual(thisCursor, 1, 9);
	});

	test('delete word right for non-empty selection', () => {
		moveTo(thisCursor, 3, 7);
		moveRight(thisCursor, true);
		moveRight(thisCursor, true);
		deleteWordRight(thisCursor);
		assert.equal(thisModel.getLineContent(3), '    Thd Line💩');
		cursorEqual(thisCursor, 3, 7);
	});

	test('delete word right for caret at end of document', () => {
		moveTo(thisCursor, 5, 3);
		deleteWordRight(thisCursor);
		assert.equal(thisModel.getLineContent(5), '1');
		cursorEqual(thisCursor, 5, 2);
	});

	test('delete word right for caret at beggining of whitespace', () => {
		moveTo(thisCursor, 3, 1);
		deleteWordRight(thisCursor);
		assert.equal(thisModel.getLineContent(3), 'Third Line💩');
		cursorEqual(thisCursor, 3, 1);
	});

	test('delete word right for caret just before a word', () => {
		moveTo(thisCursor, 2, 5);
		deleteWordRight(thisCursor);
		assert.equal(thisModel.getLineContent(2), '\tMy  Line');
		cursorEqual(thisCursor, 2, 5);
	});

	test('delete word right for caret inside of a word', () => {
		moveTo(thisCursor, 1, 11);
		deleteWordRight(thisCursor);
		assert.equal(thisModel.getLineContent(1), '    \tMy Fi Line\t ');
		cursorEqual(thisCursor, 1, 11);
	});

	// --------- misc

	test('select all', () => {
		cursorCommand(thisCursor, H.SelectAll);
		cursorEqual(thisCursor, 5, LINE5.length + 1, 1, 1);
	});

	test('expandLineSelection', () => {
		//              0          1         2
		//              01234 56789012345678 0
		// let LINE1 = '    \tMy First Line\t ';
		moveTo(thisCursor, 1, 1);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 1, LINE1.length + 1, 1, 1);

		moveTo(thisCursor, 1, 2);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 1, LINE1.length + 1, 1, 1);

		moveTo(thisCursor, 1, 5);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 1, LINE1.length + 1, 1, 1);

		moveTo(thisCursor, 1, 19);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 1, LINE1.length + 1, 1, 1);

		moveTo(thisCursor, 1, 20);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 1, LINE1.length + 1, 1, 1);

		moveTo(thisCursor, 1, 21);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 1, LINE1.length + 1, 1, 1);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 2, LINE2.length + 1, 1, 1);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 3, LINE3.length + 1, 1, 1);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 4, LINE4.length + 1, 1, 1);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 5, LINE5.length + 1, 1, 1);
		cursorCommand(thisCursor, H.ExpandLineSelection);
		cursorEqual(thisCursor, 5, LINE5.length + 1, 1, 1);
	});

	// --------- eventing

	test('no move doesn\'t trigger event', () => {
		thisCursor.addListener2(EventType.CursorPositionChanged, (e) => {
			assert.ok(false, 'was not expecting event');
		});
		thisCursor.addListener2(EventType.CursorSelectionChanged, (e) => {
			assert.ok(false, 'was not expecting event');
		});
		moveTo(thisCursor, 1, 1);
	});

	test('move eventing', () => {
		let events = 0;
		thisCursor.addListener2(EventType.CursorPositionChanged, (e) => {
			events++;
			positionEqual(e.position, 1, 2);
		});
		thisCursor.addListener2(EventType.CursorSelectionChanged, (e) => {
			events++;
			selectionEqual(e.selection, 1, 2, 1, 2);
		});
		moveTo(thisCursor, 1, 2);
		assert.equal(events, 2, 'receives 2 events');
	});

	test('move in selection mode eventing', () => {
		let events = 0;
		thisCursor.addListener2(EventType.CursorPositionChanged, (e) => {
			events++;
			positionEqual(e.position, 1, 2);
		});
		thisCursor.addListener2(EventType.CursorSelectionChanged, (e) => {
			events++;
			selectionEqual(e.selection, 1, 2, 1, 1);
		});
		moveTo(thisCursor, 1, 2, true);
		assert.equal(events, 2, 'receives 2 events');
	});

	// --------- state save & restore

	test('saveState & restoreState', () => {
		moveTo(thisCursor, 2, 1, true);
		cursorEqual(thisCursor, 2, 1, 1, 1);

		let savedState = JSON.stringify(thisCursor.saveState());

		moveTo(thisCursor, 1, 1, false);
		cursorEqual(thisCursor, 1, 1);

		thisCursor.restoreState(JSON.parse(savedState));
		cursorEqual(thisCursor, 2, 1, 1, 1);
	});

	// --------- updating cursor

	test('Independent model edit 1', () => {
		moveTo(thisCursor, 2, 16, true);

		thisModel.applyEdits([EditOperation.delete(new Range(2, 1, 2, 2))]);
		cursorEqual(thisCursor, 2, 15, 1, 1);
	});

	test('column select 1', () => {
		let model = Model.createFromString([
			'\tprivate compute(a:number): boolean {',
			'\t\tif (a + 3 === 0 || a + 5 === 0) {',
			'\t\t\treturn false;',
			'\t\t}',
			'\t}'
		].join('\n'));
		let cursor = new Cursor(1, new MockConfiguration(null), model, null, true);

		moveTo(cursor, 1, 7, false);
		cursorEqual(cursor, 1, 7);

		cursorCommand(cursor, H.ColumnSelect, {
			position: new Position(4, 4),
			viewPosition: new Position(4, 4),
			mouseColumn: 15
		});

		let expectedSelections = [
			new Selection(1, 7, 1, 12),
			new Selection(2, 4, 2, 9),
			new Selection(3, 3, 3, 6),
			new Selection(4, 4, 4, 4),
		];

		cursorEquals(cursor, expectedSelections);

		cursor.dispose();
		model.dispose();
	});

	test('issue #4905 - column select is biased to the right', () => {
		let model = Model.createFromString([
			'var gulp = require("gulp");',
			'var path = require("path");',
			'var rimraf = require("rimraf");',
			'var isarray = require("isarray");',
			'var merge = require("merge-stream");',
			'var concat = require("gulp-concat");',
			'var newer = require("gulp-newer");',
		].join('\n'));
		let cursor = new Cursor(1, new MockConfiguration(null), model, null, true);

		moveTo(cursor, 1, 4, false);
		cursorEqual(cursor, 1, 4);

		cursorCommand(cursor, H.ColumnSelect, {
			position: new Position(4, 1),
			viewPosition: new Position(4, 1),
			mouseColumn: 1
		});

		cursorEquals(cursor, [
			new Selection(1, 4, 1, 1),
			new Selection(2, 4, 2, 1),
			new Selection(3, 4, 3, 1),
			new Selection(4, 4, 4, 1),
		]);

		cursor.dispose();
		model.dispose();
	});

	test('column select with keyboard', () => {
		let model = Model.createFromString([
			'var gulp = require("gulp");',
			'var path = require("path");',
			'var rimraf = require("rimraf");',
			'var isarray = require("isarray");',
			'var merge = require("merge-stream");',
			'var concat = require("gulp-concat");',
			'var newer = require("gulp-newer");',
		].join('\n'));
		let cursor = new Cursor(1, new MockConfiguration(null), model, null, true);

		moveTo(cursor, 1, 4, false);
		cursorEqual(cursor, 1, 4);

		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 5)
		]);

		cursorCommand(cursor, H.CursorColumnSelectDown);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 5),
			new Selection(2, 4, 2, 5)
		]);

		cursorCommand(cursor, H.CursorColumnSelectDown);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 5),
			new Selection(2, 4, 2, 5),
			new Selection(3, 4, 3, 5),
		]);

		cursorCommand(cursor, H.CursorColumnSelectDown);
		cursorCommand(cursor, H.CursorColumnSelectDown);
		cursorCommand(cursor, H.CursorColumnSelectDown);
		cursorCommand(cursor, H.CursorColumnSelectDown);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 5),
			new Selection(2, 4, 2, 5),
			new Selection(3, 4, 3, 5),
			new Selection(4, 4, 4, 5),
			new Selection(5, 4, 5, 5),
			new Selection(6, 4, 6, 5),
			new Selection(7, 4, 7, 5),
		]);

		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 6),
			new Selection(2, 4, 2, 6),
			new Selection(3, 4, 3, 6),
			new Selection(4, 4, 4, 6),
			new Selection(5, 4, 5, 6),
			new Selection(6, 4, 6, 6),
			new Selection(7, 4, 7, 6),
		]);

		// 10 times
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 16),
			new Selection(2, 4, 2, 16),
			new Selection(3, 4, 3, 16),
			new Selection(4, 4, 4, 16),
			new Selection(5, 4, 5, 16),
			new Selection(6, 4, 6, 16),
			new Selection(7, 4, 7, 16),
		]);

		// 10 times
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 26),
			new Selection(2, 4, 2, 26),
			new Selection(3, 4, 3, 26),
			new Selection(4, 4, 4, 26),
			new Selection(5, 4, 5, 26),
			new Selection(6, 4, 6, 26),
			new Selection(7, 4, 7, 26),
		]);

		// 2 times => reaching the ending of lines 1 and 2
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 28),
			new Selection(4, 4, 4, 28),
			new Selection(5, 4, 5, 28),
			new Selection(6, 4, 6, 28),
			new Selection(7, 4, 7, 28),
		]);

		// 4 times => reaching the ending of line 3
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 32),
			new Selection(4, 4, 4, 32),
			new Selection(5, 4, 5, 32),
			new Selection(6, 4, 6, 32),
			new Selection(7, 4, 7, 32),
		]);

		// 2 times => reaching the ending of line 4
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 32),
			new Selection(4, 4, 4, 34),
			new Selection(5, 4, 5, 34),
			new Selection(6, 4, 6, 34),
			new Selection(7, 4, 7, 34),
		]);

		// 1 time => reaching the ending of line 7
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 32),
			new Selection(4, 4, 4, 34),
			new Selection(5, 4, 5, 35),
			new Selection(6, 4, 6, 35),
			new Selection(7, 4, 7, 35),
		]);

		// 3 times => reaching the ending of lines 5 & 6
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 32),
			new Selection(4, 4, 4, 34),
			new Selection(5, 4, 5, 37),
			new Selection(6, 4, 6, 37),
			new Selection(7, 4, 7, 35),
		]);

		// cannot go anywhere anymore
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 32),
			new Selection(4, 4, 4, 34),
			new Selection(5, 4, 5, 37),
			new Selection(6, 4, 6, 37),
			new Selection(7, 4, 7, 35),
		]);

		// cannot go anywhere anymore even if we insist
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorCommand(cursor, H.CursorColumnSelectRight);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 32),
			new Selection(4, 4, 4, 34),
			new Selection(5, 4, 5, 37),
			new Selection(6, 4, 6, 37),
			new Selection(7, 4, 7, 35),
		]);

		// can easily go back
		cursorCommand(cursor, H.CursorColumnSelectLeft);
		cursorEquals(cursor, [
			new Selection(1, 4, 1, 28),
			new Selection(2, 4, 2, 28),
			new Selection(3, 4, 3, 32),
			new Selection(4, 4, 4, 34),
			new Selection(5, 4, 5, 36),
			new Selection(6, 4, 6, 36),
			new Selection(7, 4, 7, 35),
		]);

		cursor.dispose();
		model.dispose();
	});
});

class SurroundingMode extends MockMode {
	constructor() {
		super();
		LanguageConfigurationRegistry.register(this.getId(), {
			autoClosingPairs: [{ open: '(', close: ')' }]
		});
	}
}

class OnEnterMode extends MockMode {
	constructor(indentAction: IndentAction) {
		super();
		LanguageConfigurationRegistry.register(this.getId(), {
			onEnterRules: [{
				beforeText: /.*/,
				action: {
					indentAction: indentAction
				}
			}]
		});
	}
}

suite('Editor Controller - Regression tests', () => {
	test('Bug 9121: Auto indent + undo + redo is funky', () => {
		usingCursor({
			text: [
				''
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: false
			}
		}, (model, cursor) => {
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n', 'assert1');

			cursorCommand(cursor, H.Tab, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t', 'assert2');

			cursorCommand(cursor, H.Type, { text: '\n'}, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t\n\t', 'assert3');

			cursorCommand(cursor, H.Type, { text: 'x' });
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t\n\tx', 'assert4');

			cursorCommand(cursor, H.CursorLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t\n\tx', 'assert5');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t\nx', 'assert6');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\tx', 'assert7');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\nx', 'assert8');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), 'x', 'assert9');

			cursorCommand(cursor, H.Undo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\nx', 'assert10');

			cursorCommand(cursor, H.Undo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t\nx', 'assert11');

			cursorCommand(cursor, H.Undo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t\n\tx', 'assert12');

			cursorCommand(cursor, H.Redo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t\nx', 'assert13');

			cursorCommand(cursor, H.Redo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\nx', 'assert14');

			cursorCommand(cursor, H.Redo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), 'x', 'assert15');
		});
	});

	test('issue #183: jump to matching bracket position', () => {
		usingCursor({
			text: [
				'var x = (3 + (5-7));'
			],
			mode: new BracketMode()
		}, (model, cursor) => {
			// ensure is tokenized
			model.getLineContext(1);

			moveTo(cursor, 1, 20);

			cursorCommand(cursor, H.JumpToBracket, null, 'keyboard');
			cursorEqual(cursor, 1, 10);

			cursorCommand(cursor, H.JumpToBracket, null, 'keyboard');
			cursorEqual(cursor, 1, 20);

			cursorCommand(cursor, H.JumpToBracket, null, 'keyboard');
			cursorEqual(cursor, 1, 10);
		});
	});

	test('bug #16543: Tab should indent to correct indentation spot immediately', () => {
		usingCursor({
			text: [
				'function baz() {',
				'\tfunction hello() { // something here',
				'\t',
				'',
				'\t}',
				'}'
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			},
			mode: new OnEnterMode(IndentAction.Indent),
		}, (model, cursor) => {
			moveTo(cursor, 4, 1, false);
			cursorEqual(cursor, 4, 1, 4, 1);

			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(4), '\t\t');
		});
	});

	test('bug #2938 (1): When pressing Tab on white-space only lines, indent straight to the right spot (similar to empty lines)', () => {
		usingCursor({
			text: [
				'\tfunction baz() {',
				'\t\tfunction hello() { // something here',
				'\t\t',
				'\t',
				'\t\t}',
				'\t}'
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			},
			mode: new OnEnterMode(IndentAction.Indent),
		}, (model, cursor) => {
			moveTo(cursor, 4, 2, false);
			cursorEqual(cursor, 4, 2, 4, 2);

			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(4), '\t\t\t');
		});
	});


	test('bug #2938 (2): When pressing Tab on white-space only lines, indent straight to the right spot (similar to empty lines)', () => {
		usingCursor({
			text: [
				'\tfunction baz() {',
				'\t\tfunction hello() { // something here',
				'\t\t',
				'    ',
				'\t\t}',
				'\t}'
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			},
			mode: new OnEnterMode(IndentAction.Indent),
		}, (model, cursor) => {
			moveTo(cursor, 4, 1, false);
			cursorEqual(cursor, 4, 1, 4, 1);

			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(4), '\t\t\t');
		});
	});

	test('bug #2938 (3): When pressing Tab on white-space only lines, indent straight to the right spot (similar to empty lines)', () => {
		usingCursor({
			text: [
				'\tfunction baz() {',
				'\t\tfunction hello() { // something here',
				'\t\t',
				'\t\t\t',
				'\t\t}',
				'\t}'
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			},
			mode: new OnEnterMode(IndentAction.Indent),
		}, (model, cursor) => {
			moveTo(cursor, 4, 3, false);
			cursorEqual(cursor, 4, 3, 4, 3);

			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(4), '\t\t\t\t');
		});
	});

	test('bug #2938 (4): When pressing Tab on white-space only lines, indent straight to the right spot (similar to empty lines)', () => {
		usingCursor({
			text: [
				'\tfunction baz() {',
				'\t\tfunction hello() { // something here',
				'\t\t',
				'\t\t\t\t',
				'\t\t}',
				'\t}'
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			},
			mode: new OnEnterMode(IndentAction.Indent),
		}, (model, cursor) => {
			moveTo(cursor, 4, 4, false);
			cursorEqual(cursor, 4, 4, 4, 4);

			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(4), '\t\t\t\t\t');
		});
	});

	test('Bug 18276:[editor] Indentation broken when selection is empty', () => {
		usingCursor({
			text: [
				'function baz() {'
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			},
		}, (model, cursor) => {
			moveTo(cursor, 1, 2, false);
			cursorEqual(cursor, 1, 2, 1, 2);

			cursorCommand(cursor, H.Indent, null, 'keyboard');
			assert.equal(model.getLineContent(1), '\tfunction baz() {');

			cursorEqual(cursor, 1, 3, 1, 3);
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(1), '\tf\tunction baz() {');
		});
	});

	test('bug #16815:Shift+Tab doesn\'t go back to tabstop', () => {
		usingCursor({
			text: [
				'     function baz() {'
			],
			mode: new OnEnterMode(IndentAction.IndentOutdent),
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 6, false);
			cursorEqual(cursor, 1, 6, 1, 6);

			cursorCommand(cursor, H.Outdent, null, 'keyboard');
			assert.equal(model.getLineContent(1), '    function baz() {');
			cursorEqual(cursor, 1, 5, 1, 5);
		});
	});

	test('Bug #18293:[regression][editor] Can\'t outdent whitespace line', () => {
		usingCursor({
			text: [
				'      '
			],
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 7, false);
			cursorEqual(cursor, 1, 7, 1, 7);

			cursorCommand(cursor, H.Outdent, null, 'keyboard');
			assert.equal(model.getLineContent(1), '    ');
			cursorEqual(cursor, 1, 5, 1, 5);
		});
	});

	test('Bug #16657: [editor] Tab on empty line of zero indentation moves cursor to position (1,1)', () => {
		usingCursor({
			text: [
				'function baz() {',
				'\tfunction hello() { // something here',
				'\t',
				'',
				'\t}',
				'}',
				''
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			},
		}, (model, cursor) => {
			moveTo(cursor, 7, 1, false);
			cursorEqual(cursor, 7, 1, 7, 1);

			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(7), '\t');
			cursorEqual(cursor, 7, 2, 7, 2);
		});
	});

	test('bug #16740: [editor] Cut line doesn\'t quite cut the last line', () => {
		// Part 1 => there is text on the last line
		let text = [
			'asdasd',
			'qwerty'
		];
		let model = Model.createFromString(text.join('\n'));
		let cursor = new Cursor(1, new MockConfiguration(null), model, null, true);

		moveTo(cursor, 2, 1, false);
		cursorEqual(cursor, 2, 1, 2, 1);

		cursorCommand(cursor, H.Cut, null, 'keyboard');
		assert.equal(model.getLineCount(), 1);
		assert.equal(model.getLineContent(1), 'asdasd');

		cursor.dispose();
		model.dispose();

		// Part 2 => there is no text on the last line
		text = [
			'asdasd',
			''
		];
		model = Model.createFromString(text.join('\n'));
		cursor = new Cursor(1, new MockConfiguration(null), model, null, true);

		moveTo(cursor, 2, 1, false);
		cursorEqual(cursor, 2, 1, 2, 1);

		cursorCommand(cursor, H.Cut, null, 'keyboard');
		assert.equal(model.getLineCount(), 1);
		assert.equal(model.getLineContent(1), 'asdasd');

		cursorCommand(cursor, H.Cut, null, 'keyboard');
		assert.equal(model.getLineCount(), 1);
		assert.equal(model.getLineContent(1), '');

		cursor.dispose();
		model.dispose();
	});

	test('Bug #11476: Double bracket surrounding + undo is broken', () => {
		usingCursor({
			text: [
				'hello'
			],
			mode: new SurroundingMode(),
			modelOpts: { tabSize: 4, insertSpaces: true, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 3, false);
			moveTo(cursor, 1, 5, true);
			cursorEqual(cursor, 1, 5, 1, 3);

			cursorCommand(cursor, H.Type, { text: '(' }, 'keyboard');
			cursorEqual(cursor, 1, 6, 1, 4);

			cursorCommand(cursor, H.Type, { text: '(' }, 'keyboard');
			cursorEqual(cursor, 1, 7, 1, 5);
		});
	});

	test('issue #1140: Backspace stops prematurely', () => {
		usingCursor({
			text: [
				'function baz() {',
				'  return 1;',
				'};'
			],
			mode: new SurroundingMode(),
			modelOpts: { tabSize: 4, insertSpaces: true, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 3, 2, false);
			moveTo(cursor, 1, 14, true);
			cursorEqual(cursor, 1, 14, 3, 2);

			cursorCommand(cursor, H.DeleteLeft);
			cursorEqual(cursor, 1, 14, 1, 14);
			assert.equal(model.getLineCount(), 1);
			assert.equal(model.getLineContent(1), 'function baz(;');
		});
	});

	test('issue #1336: Insert cursor below on last line adds a cursor to the end of the current line', () => {
		usingCursor({
			text: [
				'abc'
			],
		}, (model, cursor) => {
			cursorCommand(cursor, H.AddCursorDown);
			assert.equal(cursor.getSelections().length, 1);
		});
	});

	test('issue #2205: Multi-cursor pastes in reverse order', () => {
		usingCursor({
			text: [
				'abc',
				'def'
			],
		}, (model, cursor) => {
			moveTo(cursor, 2, 1, false);
			cursorCommand(cursor, H.AddCursorUp);
			assert.equal(cursor.getSelections().length, 2);

			cursorCommand(cursor, H.Paste, { text: '1\n2' });
			assert.equal(model.getLineContent(1), '1abc');
			assert.equal(model.getLineContent(2), '2def');
		});
	});

	test('issue #3071: Investigate why undo stack gets corrupted', () => {
		usingCursor({
			text: [
				'some lines',
				'and more lines',
				'just some text',
			],
			mode: null,
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);
			moveTo(cursor, 3, 4, true);

			let isFirst = true;
			model.onDidChangeContent(() => {
				if (isFirst) {
					isFirst = false;
					cursorCommand(cursor, H.Type, { text: '\t' }, 'keyboard');
				}
			});

			cursorCommand(cursor, H.Tab);
			assert.equal(model.getValue(), [
				'\t just some text'
			].join('\n'), '001');

			cursorCommand(cursor, H.Undo);
			assert.equal(model.getValue(), [
				'some lines',
				'and more lines',
				'just some text',
			].join('\n'), '002');

			cursorCommand(cursor, H.Undo);
			assert.equal(model.getValue(), [
				'some lines',
				'and more lines',
				'just some text',
			].join('\n'), '003');
		});
	});

	test('issue #3463: pressing tab adds spaces, but not as many as for a tab', () => {
		usingCursor({
			text: [
				'function a() {',
				'\tvar a = {',
				'\t\tx: 3',
				'\t};',
				'}',
			],
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 3, 2, false);
			cursorCommand(cursor, H.Tab);
			assert.equal(model.getLineContent(3), '\t    \tx: 3');
		});
	});

	test('issue #4312: trying to type a tab character over a sequence of spaces results in unexpected behaviour', () => {
		usingCursor({
			text: [
				'var foo = 123;       // this is a comment',
				'var bar = 4;       // another comment'
			],
			modelOpts: { insertSpaces: false, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 15, false);
			moveTo(cursor, 1, 22, true);
			cursorCommand(cursor, H.Tab);
			assert.equal(model.getLineContent(1), 'var foo = 123;\t// this is a comment');
		});
	});

	test('issue #832: deleteWordLeft', () => {
		usingCursor({
			text: [
				'   /* Just some text a+= 3 +5 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 37, false);
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +5 */', '001');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +5 ', '002');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +', '003');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 ', '004');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= ', '005');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a', '006');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text ', '007');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some ', '008');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just ', '009');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   /* ', '010');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '   ', '011');
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), '', '012');
		});
	});

	test('deleteWordStartLeft', () => {
		usingCursor({
			text: [
				'   /* Just some text a+= 3 +5 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 37, false);

			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +5 ', '001');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +', '002');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 ', '003');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= ', '004');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a', '005');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text ', '006');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some ', '007');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just ', '008');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   /* ', '009');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '   ', '010');
			deleteWordStartLeft(cursor); assert.equal(model.getLineContent(1), '', '011');
		});
	});

	test('deleteWordEndLeft', () => {
		usingCursor({
			text: [
				'   /* Just some text a+= 3 +5 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 37, false);
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +5 */', '001');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +5', '002');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3 +', '003');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+= 3', '004');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a+=', '005');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text a', '006');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some text', '007');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just some', '008');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /* Just', '009');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '   /*', '010');
			deleteWordEndLeft(cursor); assert.equal(model.getLineContent(1), '', '011');
		});
	});

	test('issue #832: deleteWordRight', () => {
		usingCursor({
			text: [
				'   /* Just some text a+= 3 +5-3 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), '/* Just some text a+= 3 +5-3 */  ', '001');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), ' Just some text a+= 3 +5-3 */  ', '002');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), ' some text a+= 3 +5-3 */  ', '003');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), ' text a+= 3 +5-3 */  ', '004');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), ' a+= 3 +5-3 */  ', '005');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), '+= 3 +5-3 */  ', '006');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), ' 3 +5-3 */  ', '007');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), ' +5-3 */  ', '008');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), '5-3 */  ', '009');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), '-3 */  ', '010');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), '3 */  ', '011');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), ' */  ', '012');
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), '  ', '013');
		});
	});

	test('issue #3882: deleteWordRight', () => {
		usingCursor({
			text: [
				'public void Add( int x,',
				'                 int y )'
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 24, false);
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), 'public void Add( int x,int y )', '001');
		});
	});

	test('issue #3882: deleteWordStartRight', () => {
		usingCursor({
			text: [
				'public void Add( int x,',
				'                 int y )'
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 24, false);
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), 'public void Add( int x,int y )', '001');
		});
	});

	test('issue #3882: deleteWordEndRight', () => {
		usingCursor({
			text: [
				'public void Add( int x,',
				'                 int y )'
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 24, false);
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), 'public void Add( int x,int y )', '001');
		});
	});

	test('deleteWordStartRight', () => {
		usingCursor({
			text: [
				'   /* Just some text a+= 3 +5-3 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);

			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '/* Just some text a+= 3 +5-3 */  ', '001');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), 'Just some text a+= 3 +5-3 */  ', '002');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), 'some text a+= 3 +5-3 */  ', '003');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), 'text a+= 3 +5-3 */  ', '004');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), 'a+= 3 +5-3 */  ', '005');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '+= 3 +5-3 */  ', '006');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '3 +5-3 */  ', '007');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '+5-3 */  ', '008');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '5-3 */  ', '009');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '-3 */  ', '010');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '3 */  ', '011');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '*/  ', '012');
			deleteWordStartRight(cursor); assert.equal(model.getLineContent(1), '', '013');
		});
	});

	test('deleteWordEndRight', () => {
		usingCursor({
			text: [
				'   /* Just some text a+= 3 +5-3 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), ' Just some text a+= 3 +5-3 */  ', '001');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), ' some text a+= 3 +5-3 */  ', '002');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), ' text a+= 3 +5-3 */  ', '003');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), ' a+= 3 +5-3 */  ', '004');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), '+= 3 +5-3 */  ', '005');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), ' 3 +5-3 */  ', '006');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), ' +5-3 */  ', '007');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), '5-3 */  ', '008');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), '-3 */  ', '009');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), '3 */  ', '010');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), ' */  ', '011');
			deleteWordEndRight(cursor); assert.equal(model.getLineContent(1), '  ', '012');
		});
	});

	test('issue #832: moveWordLeft', () => {
		usingCursor({
			text: [
				'   /* Just some   more   text a+= 3 +5-3 + 7 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 50, false);

			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 '.length + 1, '001');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + '.length + 1, '002');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 '.length + 1, '003');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-'.length + 1, '004');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5'.length + 1, '005');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +'.length + 1, '006');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 '.length + 1, '007');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= '.length + 1, '008');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a'.length + 1, '009');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text '.length + 1, '010');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   '.length + 1, '011');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   '.length + 1, '012');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just '.length + 1, '013');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   /* '.length + 1, '014');
			moveWordLeft(cursor); assert.equal(cursor.getPosition().column, '   '.length + 1, '015');
		});
	});

	test('moveWordStartLeft', () => {
		usingCursor({
			text: [
				'   /* Just some   more   text a+= 3 +5-3 + 7 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 50, false);

			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 '.length + 1, '001');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + '.length + 1, '002');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 '.length + 1, '003');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-'.length + 1, '004');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5'.length + 1, '005');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +'.length + 1, '006');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 '.length + 1, '007');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= '.length + 1, '008');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a'.length + 1, '009');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text '.length + 1, '010');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   '.length + 1, '011');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   '.length + 1, '012');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just '.length + 1, '013');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   /* '.length + 1, '014');
			moveWordStartLeft(cursor); assert.equal(cursor.getPosition().column, '   '.length + 1, '015');
		});
	});

	test('moveWordEndLeft', () => {
		usingCursor({
			text: [
				'   /* Just some   more   text a+= 3 +5-3 + 7 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 50, false);

			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 */'.length + 1, '001');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7'.length + 1, '002');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 +'.length + 1, '003');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3'.length + 1, '004');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-'.length + 1, '005');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5'.length + 1, '006');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +'.length + 1, '007');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3'.length + 1, '008');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+='.length + 1, '009');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a'.length + 1, '010');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text'.length + 1, '011');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more'.length + 1, '012');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just some'.length + 1, '013');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /* Just'.length + 1, '014');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, '   /*'.length + 1, '015');
			moveWordEndLeft(cursor); assert.equal(cursor.getPosition().column, ''.length + 1, '016');
		});
	});

	test('issue #832: moveWordRight', () => {
		usingCursor({
			text: [
				'   /* Just some   more   text a+= 3 +5-3 + 7 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);

			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /*'.length + 1, '001');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just'.length + 1, '003');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some'.length + 1, '004');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more'.length + 1, '005');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text'.length + 1, '006');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a'.length + 1, '007');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+='.length + 1, '008');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3'.length + 1, '009');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +'.length + 1, '010');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5'.length + 1, '011');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-'.length + 1, '012');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3'.length + 1, '013');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 +'.length + 1, '014');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7'.length + 1, '015');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 */'.length + 1, '016');
			moveWordRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 */  '.length + 1, '016');

		});
	});

	test('moveWordEndRight', () => {
		usingCursor({
			text: [
				'   /* Just some   more   text a+= 3 +5-3 + 7 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);

			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /*'.length + 1, '001');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just'.length + 1, '003');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some'.length + 1, '004');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more'.length + 1, '005');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text'.length + 1, '006');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a'.length + 1, '007');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+='.length + 1, '008');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3'.length + 1, '009');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +'.length + 1, '010');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5'.length + 1, '011');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-'.length + 1, '012');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3'.length + 1, '013');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 +'.length + 1, '014');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7'.length + 1, '015');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 */'.length + 1, '016');
			moveWordEndRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 */  '.length + 1, '016');

		});
	});

	test('moveWordStartRight', () => {
		usingCursor({
			text: [
				'   /* Just some   more   text a+= 3 +5-3 + 7 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);

			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   '.length + 1, '001');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* '.length + 1, '002');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just '.length + 1, '003');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   '.length + 1, '004');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   '.length + 1, '005');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text '.length + 1, '006');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a'.length + 1, '007');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= '.length + 1, '008');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 '.length + 1, '009');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +'.length + 1, '010');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5'.length + 1, '011');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-'.length + 1, '012');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 '.length + 1, '013');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + '.length + 1, '014');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 '.length + 1, '015');
			moveWordStartRight(cursor); assert.equal(cursor.getPosition().column, '   /* Just some   more   text a+= 3 +5-3 + 7 */  '.length + 1, '016');
		});
	});

	test('issue #832: word right', () => {

		usingCursor({
			text: [
				'   /* Just some   more   text a+= 3 +5-3 + 7 */  '
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 1, false);

			function assertWordRight(col, expectedCol) {
				cursorCommand(cursor, col === 1 ? H.WordSelect : H.WordSelectDrag, {
					position: {
						lineNumber: 1,
						column: col
					},
					preference: 'right'
				});

				assert.equal(cursor.getSelection().startColumn, 1, 'TEST FOR ' + col);
				assert.equal(cursor.getSelection().endColumn, expectedCol, 'TEST FOR ' + col);
			}

			assertWordRight( 1, '   '.length + 1);
			assertWordRight( 2, '   '.length + 1);
			assertWordRight( 3, '   '.length + 1);
			assertWordRight( 4, '   '.length + 1);
			assertWordRight( 5, '   /'.length + 1);
			assertWordRight( 6, '   /*'.length + 1);
			assertWordRight( 7, '   /* '.length + 1);
			assertWordRight( 8, '   /* Just'.length + 1);
			assertWordRight( 9, '   /* Just'.length + 1);
			assertWordRight(10, '   /* Just'.length + 1);
			assertWordRight(11, '   /* Just'.length + 1);
			assertWordRight(12, '   /* Just '.length + 1);
			assertWordRight(13, '   /* Just some'.length + 1);
			assertWordRight(14, '   /* Just some'.length + 1);
			assertWordRight(15, '   /* Just some'.length + 1);
			assertWordRight(16, '   /* Just some'.length + 1);
			assertWordRight(17, '   /* Just some '.length + 1);
			assertWordRight(18, '   /* Just some  '.length + 1);
			assertWordRight(19, '   /* Just some   '.length + 1);
			assertWordRight(20, '   /* Just some   more'.length + 1);
			assertWordRight(21, '   /* Just some   more'.length + 1);
			assertWordRight(22, '   /* Just some   more'.length + 1);
			assertWordRight(23, '   /* Just some   more'.length + 1);
			assertWordRight(24, '   /* Just some   more '.length + 1);
			assertWordRight(25, '   /* Just some   more  '.length + 1);
			assertWordRight(26, '   /* Just some   more   '.length + 1);
			assertWordRight(27, '   /* Just some   more   text'.length + 1);
			assertWordRight(28, '   /* Just some   more   text'.length + 1);
			assertWordRight(29, '   /* Just some   more   text'.length + 1);
			assertWordRight(30, '   /* Just some   more   text'.length + 1);
			assertWordRight(31, '   /* Just some   more   text '.length + 1);
			assertWordRight(32, '   /* Just some   more   text a'.length + 1);
			assertWordRight(33, '   /* Just some   more   text a+'.length + 1);
			assertWordRight(34, '   /* Just some   more   text a+='.length + 1);
			assertWordRight(35, '   /* Just some   more   text a+= '.length + 1);
			assertWordRight(36, '   /* Just some   more   text a+= 3'.length + 1);
			assertWordRight(37, '   /* Just some   more   text a+= 3 '.length + 1);
			assertWordRight(38, '   /* Just some   more   text a+= 3 +'.length + 1);
			assertWordRight(39, '   /* Just some   more   text a+= 3 +5'.length + 1);
			assertWordRight(40, '   /* Just some   more   text a+= 3 +5-'.length + 1);
			assertWordRight(41, '   /* Just some   more   text a+= 3 +5-3'.length + 1);
			assertWordRight(42, '   /* Just some   more   text a+= 3 +5-3 '.length + 1);
			assertWordRight(43, '   /* Just some   more   text a+= 3 +5-3 +'.length + 1);
			assertWordRight(44, '   /* Just some   more   text a+= 3 +5-3 + '.length + 1);
			assertWordRight(45, '   /* Just some   more   text a+= 3 +5-3 + 7'.length + 1);
			assertWordRight(46, '   /* Just some   more   text a+= 3 +5-3 + 7 '.length + 1);
			assertWordRight(47, '   /* Just some   more   text a+= 3 +5-3 + 7 *'.length + 1);
			assertWordRight(48, '   /* Just some   more   text a+= 3 +5-3 + 7 */'.length + 1);
			assertWordRight(49, '   /* Just some   more   text a+= 3 +5-3 + 7 */ '.length + 1);
			assertWordRight(50, '   /* Just some   more   text a+= 3 +5-3 + 7 */  '.length + 1);
		});
	});

	test('issue #3882 (1): Ctrl+Delete removing entire line when used at the end of line', () => {
		usingCursor({
			text: [
				'A line with text.',
				'   And another one'
			],
		}, (model, cursor) => {
			moveTo(cursor, 1, 18, false);
			deleteWordRight(cursor); assert.equal(model.getLineContent(1), 'A line with text.And another one', '001');
		});
	});

	test('issue #3882 (2): Ctrl+Delete removing entire line when used at the end of line', () => {
		usingCursor({
			text: [
				'A line with text.',
				'   And another one'
			],
		}, (model, cursor) => {
			moveTo(cursor, 2, 1, false);
			deleteWordLeft(cursor); assert.equal(model.getLineContent(1), 'A line with text.   And another one', '001');
		});
	});
});

suite('Editor Controller - Cursor Configuration', () => {

	test('Cursor honors insertSpaces configuration on new line', () => {
		usingCursor({
			text: [
				'    \tMy First Line\t ',
				'\tMy Second Line',
				'    Third Line',
				'',
				'1'
			],
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			cursorCommand(cursor, H.MoveTo, { position: new Position(1, 21) }, 'keyboard');
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    \tMy First Line\t ');
			assert.equal(model.getLineContent(2), '        ');
		});
	});

	test('Cursor honors insertSpaces configuration on tab', () => {
		usingCursor({
			text: [
				'    \tMy First Line\t ',
				'My Second Line123',
				'    Third Line',
				'',
				'1'
			],
			modelOpts: { insertSpaces: true, tabSize: 13, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			// Tab on column 1
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 1) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), '             My Second Line123');
			cursorCommand(cursor, H.Undo, null, 'keyboard');

			// Tab on column 2
			assert.equal(model.getLineContent(2), 'My Second Line123');
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 2) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), 'M            y Second Line123');
			cursorCommand(cursor, H.Undo, null, 'keyboard');

			// Tab on column 3
			assert.equal(model.getLineContent(2), 'My Second Line123');
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 3) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), 'My            Second Line123');
			cursorCommand(cursor, H.Undo, null, 'keyboard');

			// Tab on column 4
			assert.equal(model.getLineContent(2), 'My Second Line123');
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 4) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), 'My           Second Line123');
			cursorCommand(cursor, H.Undo, null, 'keyboard');

			// Tab on column 5
			assert.equal(model.getLineContent(2), 'My Second Line123');
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 5) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), 'My S         econd Line123');
			cursorCommand(cursor, H.Undo, null, 'keyboard');

			// Tab on column 5
			assert.equal(model.getLineContent(2), 'My Second Line123');
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 5) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), 'My S         econd Line123');
			cursorCommand(cursor, H.Undo, null, 'keyboard');

			// Tab on column 13
			assert.equal(model.getLineContent(2), 'My Second Line123');
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 13) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), 'My Second Li ne123');
			cursorCommand(cursor, H.Undo, null, 'keyboard');

			// Tab on column 14
			assert.equal(model.getLineContent(2), 'My Second Line123');
			cursorCommand(cursor, H.MoveTo, { position: new Position(2, 14) }, 'keyboard');
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(2), 'My Second Lin             e123');
		});
	});

	test('Enter auto-indents with insertSpaces setting 1', () => {
		usingCursor({
			text: [
				'\thello'
			],
			mode: new OnEnterMode(IndentAction.Indent),
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 7, false);
			cursorEqual(cursor, 1, 7, 1, 7);

			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.CRLF), '\thello\r\n        ');
		});
	});

	test('Enter auto-indents with insertSpaces setting 2', () => {
		usingCursor({
			text: [
				'\thello'
			],
			mode: new OnEnterMode(IndentAction.None),
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 7, false);
			cursorEqual(cursor, 1, 7, 1, 7);

			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.CRLF), '\thello\r\n    ');
		});
	});

	test('Enter auto-indents with insertSpaces setting 3', () => {
		usingCursor({
			text: [
				'\thell()'
			],
			mode: new OnEnterMode(IndentAction.IndentOutdent),
			modelOpts: { insertSpaces: true, tabSize: 4, detectIndentation: false, defaultEOL: DefaultEndOfLine.LF, trimAutoWhitespace: true }
		}, (model, cursor) => {
			moveTo(cursor, 1, 7, false);
			cursorEqual(cursor, 1, 7, 1, 7);

			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.CRLF), '\thell(\r\n        \r\n    )');
		});
	});

	test('Insert line before', () => {
		let testInsertLineBefore = (lineNumber:number, column:number, callback:(model:Model, cursor:Cursor) => void) => {
			usingCursor({
				text: [
					'First line',
					'Second line',
					'Third line'
				],
			}, (model, cursor) => {
				moveTo(cursor, lineNumber, column, false);
				cursorEqual(cursor, lineNumber, column, lineNumber, column);

				cursorCommand(cursor, H.LineInsertBefore, null, 'keyboard');
				callback(model, cursor);
			});
		};

		testInsertLineBefore(1, 3, (model, cursor) => {
			cursorEqual(cursor, 1, 1, 1, 1);
			assert.equal(model.getLineContent(1), '');
			assert.equal(model.getLineContent(2), 'First line');
			assert.equal(model.getLineContent(3), 'Second line');
			assert.equal(model.getLineContent(4), 'Third line');
		});

		testInsertLineBefore(2, 3, (model, cursor) => {
			cursorEqual(cursor, 2, 1, 2, 1);
			assert.equal(model.getLineContent(1), 'First line');
			assert.equal(model.getLineContent(2), '');
			assert.equal(model.getLineContent(3), 'Second line');
			assert.equal(model.getLineContent(4), 'Third line');
		});

		testInsertLineBefore(3, 3, (model, cursor) => {
			cursorEqual(cursor, 3, 1, 3, 1);
			assert.equal(model.getLineContent(1), 'First line');
			assert.equal(model.getLineContent(2), 'Second line');
			assert.equal(model.getLineContent(3), '');
			assert.equal(model.getLineContent(4), 'Third line');
		});
	});

	test('Insert line after', () => {
		let testInsertLineAfter = (lineNumber:number, column:number, callback:(model:Model, cursor:Cursor) => void) => {
			usingCursor({
				text: [
					'First line',
					'Second line',
					'Third line'
				],
			}, (model, cursor) => {
				moveTo(cursor, lineNumber, column, false);
				cursorEqual(cursor, lineNumber, column, lineNumber, column);

				cursorCommand(cursor, H.LineInsertAfter, null, 'keyboard');
				callback(model, cursor);
			});
		};

		testInsertLineAfter(1, 3, (model, cursor) => {
			cursorEqual(cursor, 2, 1, 2, 1);
			assert.equal(model.getLineContent(1), 'First line');
			assert.equal(model.getLineContent(2), '');
			assert.equal(model.getLineContent(3), 'Second line');
			assert.equal(model.getLineContent(4), 'Third line');
		});

		testInsertLineAfter(2, 3, (model, cursor) => {
			cursorEqual(cursor, 3, 1, 3, 1);
			assert.equal(model.getLineContent(1), 'First line');
			assert.equal(model.getLineContent(2), 'Second line');
			assert.equal(model.getLineContent(3), '');
			assert.equal(model.getLineContent(4), 'Third line');
		});

		testInsertLineAfter(3, 3, (model, cursor) => {
			cursorEqual(cursor, 4, 1, 4, 1);
			assert.equal(model.getLineContent(1), 'First line');
			assert.equal(model.getLineContent(2), 'Second line');
			assert.equal(model.getLineContent(3), 'Third line');
			assert.equal(model.getLineContent(4), '');
		});
	});

	test('removeAutoWhitespace off', () => {
		usingCursor({
			text: [
				'    some  line abc  '
			],
			modelOpts: {
				insertSpaces: true,
				tabSize: 4,
				detectIndentation: false,
				defaultEOL: DefaultEndOfLine.LF,
				trimAutoWhitespace: false
			}
		}, (model, cursor) => {

			// Move cursor to the end, verify that we do not trim whitespaces if line has values
			moveTo(cursor, 1, model.getLineContent(1).length + 1);
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    some  line abc  ');
			assert.equal(model.getLineContent(2), '    ');

			// Try to enter again, we should trimmed previous line
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    some  line abc  ');
			assert.equal(model.getLineContent(2), '    ');
			assert.equal(model.getLineContent(3), '    ');
		});
	});

	test('removeAutoWhitespace on: removes only whitespace the cursor added 1', () => {
		usingCursor({
			text: [
				'    '
			],
			modelOpts: {
				insertSpaces: true,
				tabSize: 4,
				detectIndentation: false,
				defaultEOL: DefaultEndOfLine.LF,
				trimAutoWhitespace: true
			}
		}, (model, cursor) => {
			moveTo(cursor, 1, model.getLineContent(1).length + 1);
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    ');
			assert.equal(model.getLineContent(2), '    ');

			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    ');
			assert.equal(model.getLineContent(2), '');
			assert.equal(model.getLineContent(3), '    ');
		});
	});

	test('issue #6862: Editor removes auto inserted indentation when formatting on type', () => {
		usingCursor({
			text: [
				'function foo (params: string) {}'
			],
			modelOpts: {
				insertSpaces: true,
				tabSize: 4,
				detectIndentation: false,
				defaultEOL: DefaultEndOfLine.LF,
				trimAutoWhitespace: true
			},
			mode: new OnEnterMode(IndentAction.IndentOutdent),
		}, (model, cursor) => {

			moveTo(cursor, 1, 32);
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), 'function foo (params: string) {');
			assert.equal(model.getLineContent(2), '    ');
			assert.equal(model.getLineContent(3), '}');

			class TestCommand implements ICommand {

				private _selectionId: string = null;

				public getEditOperations(model: ITokenizedModel, builder: IEditOperationBuilder): void {
					builder.addEditOperation(new Range(1, 13, 1, 14), '');
					this._selectionId = builder.trackSelection(cursor.getSelection());
				}

				public computeCursorState(model: ITokenizedModel, helper: ICursorStateComputerData): Selection {
					return helper.getTrackedSelection(this._selectionId);
				}

			}

			cursor.trigger('autoFormat', Handler.ExecuteCommand, new TestCommand());
			assert.equal(model.getLineContent(1), 'function foo(params: string) {');
			assert.equal(model.getLineContent(2), '    ');
			assert.equal(model.getLineContent(3), '}');
		});
	});

	test('removeAutoWhitespace on: removes only whitespace the cursor added 2', () => {
		usingCursor({
			text: [
				'    if (a) {',
				'        ',
				'',
				'',
				'    }'
			],
			modelOpts: {
				insertSpaces: true,
				tabSize: 4,
				detectIndentation: false,
				defaultEOL: DefaultEndOfLine.LF,
				trimAutoWhitespace: true
			}
		}, (model, cursor) => {

			moveTo(cursor, 3, 1);
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(1), '    if (a) {');
			assert.equal(model.getLineContent(2), '        ');
			assert.equal(model.getLineContent(3), '    ');
			assert.equal(model.getLineContent(4), '');
			assert.equal(model.getLineContent(5), '    }');

			moveTo(cursor, 4, 1);
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(1), '    if (a) {');
			assert.equal(model.getLineContent(2), '        ');
			assert.equal(model.getLineContent(3), '');
			assert.equal(model.getLineContent(4), '    ');
			assert.equal(model.getLineContent(5), '    }');

			moveTo(cursor, 5, model.getLineMaxColumn(5));
			cursorCommand(cursor, H.Type, { text: 'something' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    if (a) {');
			assert.equal(model.getLineContent(2), '        ');
			assert.equal(model.getLineContent(3), '');
			assert.equal(model.getLineContent(4), '');
			assert.equal(model.getLineContent(5), '    }something');
		});
	});

	test('removeAutoWhitespace on: test 1', () => {
		usingCursor({
			text: [
				'    some  line abc  '
			],
			modelOpts: {
				insertSpaces: true,
				tabSize: 4,
				detectIndentation: false,
				defaultEOL: DefaultEndOfLine.LF,
				trimAutoWhitespace: true
			}
		}, (model, cursor) => {

			// Move cursor to the end, verify that we do not trim whitespaces if line has values
			moveTo(cursor, 1, model.getLineContent(1).length + 1);
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    some  line abc  ');
			assert.equal(model.getLineContent(2), '    ');

			// Try to enter again, we should trimmed previous line
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    some  line abc  ');
			assert.equal(model.getLineContent(2), '');
			assert.equal(model.getLineContent(3), '    ');

			// More whitespaces
			cursorCommand(cursor, H.Tab, null, 'keyboard');
			assert.equal(model.getLineContent(1), '    some  line abc  ');
			assert.equal(model.getLineContent(2), '');
			assert.equal(model.getLineContent(3), '        ');

			// Enter and verify that trimmed again
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    some  line abc  ');
			assert.equal(model.getLineContent(2), '');
			assert.equal(model.getLineContent(3), '');
			assert.equal(model.getLineContent(4), '        ');

			// Trimmed if we will keep only text
			moveTo(cursor, 1, 5);
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    ');
			assert.equal(model.getLineContent(2), '    some  line abc  ');
			assert.equal(model.getLineContent(3), '');
			assert.equal(model.getLineContent(4), '');
			assert.equal(model.getLineContent(5), '');

			// Trimmed if we will keep only text by selection
			moveTo(cursor, 2, 5);
			moveTo(cursor, 3, 1, true);
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getLineContent(1), '    ');
			assert.equal(model.getLineContent(2), '    ');
			assert.equal(model.getLineContent(3), '');
			assert.equal(model.getLineContent(4), '');
			assert.equal(model.getLineContent(5), '');
		});
	});

	test('UseTabStops is off', () => {
		usingCursor({
			text: [
				'    x',
				'        a    ',
				'    '
			],
			modelOpts: {
				insertSpaces: true,
				tabSize: 4,
				detectIndentation: false,
				defaultEOL: DefaultEndOfLine.LF,
				trimAutoWhitespace: true
			},
			editorOpts: {
				useTabStops: false
			}
		}, (model, cursor) => {
			// DeleteLeft removes just one whitespace
			moveTo(cursor, 2, 9);
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(2), '       a    ');
		});
	});

	test('Backspace removes whitespaces with tab size', () => {
		usingCursor({
			text: [
				' \t \t     x',
				'        a    ',
				'    '
			],
			modelOpts: {
				insertSpaces: true,
				tabSize: 4,
				detectIndentation: false,
				defaultEOL: DefaultEndOfLine.LF,
				trimAutoWhitespace: true
			},
			editorOpts: {
				useTabStops: true
			}
		}, (model, cursor) => {
			// DeleteLeft does not remove tab size, because some text exists before
			moveTo(cursor, 2, model.getLineContent(2).length + 1);
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(2), '        a   ');

			// DeleteLeft removes tab size = 4
			moveTo(cursor, 2, 9);
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(2), '    a   ');

			// DeleteLeft removes tab size = 4
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(2), 'a   ');

			// Undo DeleteLeft - get us back to original indentation
			cursorCommand(cursor, H.Undo, {});
			assert.equal(model.getLineContent(2), '        a   ');

			// Nothing is broken when cursor is in (1,1)
			moveTo(cursor, 1, 1);
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(1), ' \t \t     x');

			// DeleteLeft stops at tab stops even in mixed whitespace case
			moveTo(cursor, 1, 10);
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(1), ' \t \t    x');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(1), ' \t \tx');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(1), ' \tx');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(1), 'x');

			// DeleteLeft on last line
			moveTo(cursor, 3, model.getLineContent(3).length + 1);
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(3), '');

			// DeleteLeft with removing new line symbol
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), 'x\n        a   ');

			// In case of selection DeleteLeft only deletes selected text
			moveTo(cursor, 2, 3);
			moveTo(cursor, 2, 4, true);
			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getLineContent(2), '       a   ');
		});
	});

	test('PR #5423: Auto indent + undo + redo is funky', () => {
		usingCursor({
			text: [
				''
			],
			modelOpts: {
				defaultEOL: DefaultEndOfLine.LF,
				detectIndentation: false,
				insertSpaces: false,
				tabSize: 4,
				trimAutoWhitespace: true
			}
		}, (model, cursor) => {
			cursorCommand(cursor, H.Type, { text: '\n' }, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n', 'assert1');

			cursorCommand(cursor, H.Tab, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\t', 'assert2');

			cursorCommand(cursor, H.Type, { text: 'y'}, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty', 'assert2');

			cursorCommand(cursor, H.Type, { text: '\n'}, 'keyboard');
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty\n\t', 'assert3');

			cursorCommand(cursor, H.Type, { text: 'x' });
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty\n\tx', 'assert4');

			cursorCommand(cursor, H.CursorLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty\n\tx', 'assert5');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty\nx', 'assert6');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\tyx', 'assert7');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\tx', 'assert8');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\nx', 'assert9');

			cursorCommand(cursor, H.DeleteLeft, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), 'x', 'assert10');

			cursorCommand(cursor, H.Undo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\nx', 'assert11');

			cursorCommand(cursor, H.Undo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty\nx', 'assert12');

			cursorCommand(cursor, H.Undo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty\n\tx', 'assert13');

			cursorCommand(cursor, H.Redo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\n\ty\nx', 'assert14');

			cursorCommand(cursor, H.Redo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), '\nx', 'assert15');

			cursorCommand(cursor, H.Redo, {});
			assert.equal(model.getValue(EndOfLinePreference.LF), 'x', 'assert16');
		});
	});
});

interface ICursorOpts {
	text: string[];
	mode?: IMode;
	modelOpts?: ITextModelCreationOptions;
	editorOpts?: IEditorOptions;
}

function usingCursor(opts:ICursorOpts, callback:(model:Model, cursor:Cursor)=>void): void {
	let model = Model.createFromString(opts.text.join('\n'), opts.modelOpts, opts.mode);
	let config = new MockConfiguration(opts.editorOpts);
	let cursor = new Cursor(1, config, model, null, false);

	callback(model, cursor);

	cursor.dispose();
	config.dispose();
	model.dispose();
}