Squashed 'lib/vscode/' content from commit e5a624b788

git-subtree-dir: lib/vscode
git-subtree-split: e5a624b788d92b8d34d1392e4c4d9789406efe8f

extensions/markdown-language-features/src/test/documentSymbolProvider.test.ts

@@ -0,0 +1,97 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as assert from 'assert';
+import 'mocha';
+import * as vscode from 'vscode';
+import SymbolProvider from '../features/documentSymbolProvider';
+import { InMemoryDocument } from './inMemoryDocument';
+import { createNewMarkdownEngine } from './engine';
+
+
+const testFileName = vscode.Uri.file('test.md');
+
+
+function getSymbolsForFile(fileContents: string) {
+	const doc = new InMemoryDocument(testFileName, fileContents);
+	const provider = new SymbolProvider(createNewMarkdownEngine());
+	return provider.provideDocumentSymbols(doc);
+}
+
+
+suite('markdown.DocumentSymbolProvider', () => {
+	test('Should not return anything for empty document', async () => {
+		const symbols = await getSymbolsForFile('');
+		assert.strictEqual(symbols.length, 0);
+	});
+
+	test('Should not return anything for document with no headers', async () => {
+		const symbols = await getSymbolsForFile('a\na');
+		assert.strictEqual(symbols.length, 0);
+	});
+
+	test('Should not return anything for document with # but no real headers', async () => {
+		const symbols = await getSymbolsForFile('a#a\na#');
+		assert.strictEqual(symbols.length, 0);
+	});
+
+	test('Should return single symbol for single header', async () => {
+		const symbols = await getSymbolsForFile('# h');
+		assert.strictEqual(symbols.length, 1);
+		assert.strictEqual(symbols[0].name, '# h');
+	});
+
+	test('Should not care about symbol level for single header', async () => {
+		const symbols = await getSymbolsForFile('### h');
+		assert.strictEqual(symbols.length, 1);
+		assert.strictEqual(symbols[0].name, '### h');
+	});
+
+	test('Should put symbols of same level in flat list', async () => {
+		const symbols = await getSymbolsForFile('## h\n## h2');
+		assert.strictEqual(symbols.length, 2);
+		assert.strictEqual(symbols[0].name, '## h');
+		assert.strictEqual(symbols[1].name, '## h2');
+	});
+
+	test('Should nest symbol of level - 1 under parent', async () => {
+
+		const symbols = await getSymbolsForFile('# h\n## h2\n## h3');
+		assert.strictEqual(symbols.length, 1);
+		assert.strictEqual(symbols[0].name, '# h');
+		assert.strictEqual(symbols[0].children.length, 2);
+		assert.strictEqual(symbols[0].children[0].name, '## h2');
+		assert.strictEqual(symbols[0].children[1].name, '## h3');
+	});
+
+	test('Should nest symbol of level - n under parent', async () => {
+		const symbols = await getSymbolsForFile('# h\n#### h2');
+		assert.strictEqual(symbols.length, 1);
+		assert.strictEqual(symbols[0].name, '# h');
+		assert.strictEqual(symbols[0].children.length, 1);
+		assert.strictEqual(symbols[0].children[0].name, '#### h2');
+	});
+
+	test('Should flatten children where lower level occurs first', async () => {
+		const symbols = await getSymbolsForFile('# h\n### h2\n## h3');
+		assert.strictEqual(symbols.length, 1);
+		assert.strictEqual(symbols[0].name, '# h');
+		assert.strictEqual(symbols[0].children.length, 2);
+		assert.strictEqual(symbols[0].children[0].name, '### h2');
+		assert.strictEqual(symbols[0].children[1].name, '## h3');
+	});
+
+	test('Should handle line separator in file. Issue #63749', async () => {
+		const symbols = await getSymbolsForFile(`# A
+- foo

+
+# B
+- bar`);
+		assert.strictEqual(symbols.length, 2);
+		assert.strictEqual(symbols[0].name, '# A');
+		assert.strictEqual(symbols[1].name, '# B');
+	});
+});
+