unit test for applying metadata and output, https://github.com/microsoft/vscode/issues/105283

src/vs/workbench/contrib/notebook/common/model/notebookTextModel.ts

@@ -252,10 +252,12 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 					break;
 				case CellEditType.Output:
 					//TODO@joh,@rebornix no event, no undo stop (?)
+					this.assertIndex(edit.index);
 					const cell = this.cells[edit.index];
 					this.spliceNotebookCellOutputs(cell.handle, [[0, cell.outputs.length, edit.outputs]]);
 					break;
 				case CellEditType.Metadata:
+					this.assertIndex(edit.index);
 					this.changeCellMetadata(this.cells[edit.index].handle, edit.metadata);
 					break;
 			}

src/vs/workbench/contrib/notebook/test/notebookTextModel.test.ts

@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import * as assert from 'assert';
-import { CellKind, CellEditType } from 'vs/workbench/contrib/notebook/common/notebookCommon';
+import { CellKind, CellEditType, CellOutputKind } from 'vs/workbench/contrib/notebook/common/notebookCommon';
 import { withTestNotebook, TestCell, setupInstantiationService } from 'vs/workbench/contrib/notebook/test/testNotebookEditor';
 import { IBulkEditService } from 'vs/editor/browser/services/bulkEditService';
 import { IUndoRedoService } from 'vs/platform/undoRedo/common/undoRedo';
@@ -139,4 +139,89 @@ suite('NotebookTextModel', () => {
 			}
 		);
 	});
+
+	test('output', function () {
+		withTestNotebook(
+			instantiationService,
+			blukEditService,
+			undoRedoService,
+			[
+				['var a = 1;', 'javascript', CellKind.Code, [], { editable: true }],
+			],
+			(editor, viewModel, textModel) => {
+
+				// invalid index 1
+				assert.throws(() => {
+					textModel.applyEdit(textModel.versionId, [{
+						index: Number.MAX_VALUE,
+						editType: CellEditType.Output,
+						outputs: []
+					}], true);
+				});
+
+				// invalid index 2
+				assert.throws(() => {
+					textModel.applyEdit(textModel.versionId, [{
+						index: -1,
+						editType: CellEditType.Output,
+						outputs: []
+					}], true);
+				});
+
+				textModel.applyEdit(textModel.versionId, [{
+					index: 0,
+					editType: CellEditType.Output,
+					outputs: [{
+						outputKind: CellOutputKind.Rich,
+						outputId: 'someId',
+						data: { 'text/markdown': '_Hello_' }
+					}]
+				}], true);
+
+				assert.equal(textModel.cells.length, 1);
+				assert.equal(textModel.cells[0].outputs.length, 1);
+				assert.equal(textModel.cells[0].outputs[0].outputKind, CellOutputKind.Rich);
+			}
+		);
+	});
+
+	test('metadata', function () {
+		withTestNotebook(
+			instantiationService,
+			blukEditService,
+			undoRedoService,
+			[
+				['var a = 1;', 'javascript', CellKind.Code, [], { editable: true }],
+			],
+			(editor, viewModel, textModel) => {
+
+				// invalid index 1
+				assert.throws(() => {
+					textModel.applyEdit(textModel.versionId, [{
+						index: Number.MAX_VALUE,
+						editType: CellEditType.Metadata,
+						metadata: { editable: false }
+					}], true);
+				});
+
+				// invalid index 2
+				assert.throws(() => {
+					textModel.applyEdit(textModel.versionId, [{
+						index: -1,
+						editType: CellEditType.Metadata,
+						metadata: { editable: false }
+					}], true);
+				});
+
+				textModel.applyEdit(textModel.versionId, [{
+					index: 0,
+					editType: CellEditType.Metadata,
+					metadata: { editable: false },
+				}], true);
+
+				assert.equal(textModel.cells.length, 1);
+				assert.equal(textModel.cells[0].metadata?.editable, false);
+			}
+		);
+	});
 });

src/vs/workbench/contrib/notebook/test/testNotebookEditor.ts

@@ -381,9 +381,15 @@ export function withTestNotebook(instantiationService: TestInstantiationService,
 	const viewType = 'notebook';
 	const editor = new TestNotebookEditor();
 	const notebook = new NotebookTextModel(0, viewType, false, URI.parse('test'), undoRedoService, textModelService);
-	notebook.cells = cells.map((cell, index) => {
-		return new NotebookCellTextModel(notebook.uri, index, cell[0], cell[1], cell[2], cell[3], cell[4], textModelService);
-	});
+	notebook.initialize(cells.map(cell => {
+		return {
+			source: cell[0],
+			language: cell[1],
+			cellKind: cell[2],
+			outputs: cell[3],
+			metadata: cell[4]
+		};
+	}));
 	const model = new NotebookEditorTestModel(notebook);
 	const eventDispatcher = new NotebookEventDispatcher();
 	const viewModel = new NotebookViewModel(viewType, model.notebook, eventDispatcher, null, instantiationService, blukEditService, undoRedoService);