re #45770. Test case for chunk based search.

src/vs/editor/test/common/model/pieceTreeTextBuffer/pieceTreeTextBuffer.test.ts

@@ -1787,4 +1787,27 @@ suite('chunk based search', () => {
 		let ret = pieceTree.findMatchesLineByLine(new Range(1, 1, 1, 1), new SearchData(/abc/, new WordCharacterClassifier(',./'), 'abc'), true, 1000);
 		assert.equal(ret.length, 0);
 	});
+
+	test('#45770. FindInNode should not cross node boundary.', () => {
+		let pieceTree = createTextBuffer([
+			[
+				'balabalababalabalababalabalaba',
+				'balabalababalabalababalabalaba',
+				'',
+				'* [ ] task1',
+				'* [x] task2 balabalaba',
+				'* [ ] task 3'
+			].join('\n')
+		]);
+		pieceTree.delete(0, 62);
+		pieceTree.delete(16, 1);
+
+		pieceTree.insert(16, ' ');
+		let ret = pieceTree.findMatchesLineByLine(new Range(1, 1, 4, 13), new SearchData(/\[/gi, new WordCharacterClassifier(',./'), '['), true, 1000);
+		assert.equal(ret.length, 3);
+
+		assert.deepEqual(ret[0].range, new Range(2, 3, 2, 4));
+		assert.deepEqual(ret[1].range, new Range(3, 3, 3, 4));
+		assert.deepEqual(ret[2].range, new Range(4, 3, 4, 4));
+	});
 });
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