Extract joinLines

extensions/typescript-language-features/src/test/jsdocSnippet.test.ts

@@ -7,6 +7,8 @@ import * as assert from 'assert';
 import 'mocha';
 import { templateToSnippet } from '../features/jsDocCompletions';
 
+const joinLines = (...args: string[]) => args.join('\n');
+
 suite('typescript.jsDocSnippet', () => {
 	test('Should do nothing for single line input', async () => {
 		const input = `/** */`;
@@ -15,63 +17,63 @@ suite('typescript.jsDocSnippet', () => {
 
 	test('Should put cursor inside multiline line input', async () => {
 		assert.strictEqual(
-			templateToSnippet([
+			templateToSnippet(joinLines(
 				'/**',
 				' * ',
 				' */'
-			].join('\n')).value,
-			[
+			)).value,
+			joinLines(
 				'/**',
 				' * $0',
 				' */'
-			].join('\n'));
+			));
 	});
 
 	test('Should add placeholders after each parameter', async () => {
 		assert.strictEqual(
-			templateToSnippet([
+			templateToSnippet(joinLines(
 				'/**',
 				' * @param a',
 				' * @param b',
 				' */'
-			].join('\n')).value,
-			[
+			)).value,
+			joinLines(
 				'/**',
 				' * @param a ${1}',
 				' * @param b ${2}',
 				' */'
-			].join('\n'));
+			));
 	});
 
 	test('Should add placeholders for types', async () => {
 		assert.strictEqual(
-			templateToSnippet([
+			templateToSnippet(joinLines(
 				'/**',
 				' * @param {*} a',
 				' * @param {*} b',
 				' */'
-			].join('\n')).value,
-			[
+			)).value,
+			joinLines(
 				'/**',
 				' * @param {${1:*}} a ${2}',
 				' * @param {${3:*}} b ${4}',
 				' */'
-			].join('\n'));
+			));
 	});
 
 	test('Should properly escape dollars in parameter names', async () => {
 		assert.strictEqual(
-			templateToSnippet([
+			templateToSnippet(joinLines(
 				'/**',
 				' * ',
 				' * @param $arg',
 				' */'
-			].join('\n')).value,
-			[
+			)).value,
+			joinLines(
 				'/**',
 				' * $0',
 				' * @param \\$arg ${1}',
 				' */'
-			].join('\n'));
+			));
 	});
 });