1 files changed, 13 insertions, 1 deletions
diff --git a/src/vs/workbench/api/test/browser/extHostTypeConverter.test.ts b/src/vs/workbench/api/test/browser/extHostTypeConverter.test.ts
index 20ef8c11b6c..fb2b02bc890 100644
--- a/src/vs/workbench/api/test/browser/extHostTypeConverter.test.ts
+++ b/src/vs/workbench/api/test/browser/extHostTypeConverter.test.ts
@@ -6,7 +6,7 @@
 
 import * as assert from 'assert';
 import * as extHostTypes from 'vs/workbench/api/common/extHostTypes';
-import { MarkdownString, NotebookCellOutputItem, NotebookData } from 'vs/workbench/api/common/extHostTypeConverters';
+import { MarkdownString, NotebookCellOutputItem, NotebookData, LanguageSelector } from 'vs/workbench/api/common/extHostTypeConverters';
 import { isEmptyObject } from 'vs/base/common/types';
 import { forEach } from 'vs/base/common/collections';
 import { LogLevel as _MainLogLevel } from 'vs/platform/log/common/log';
@@ -111,4 +111,16 @@ suite('ExtHostTypeConverter', function () {
 		assert.strictEqual(item2.mime, item.mime);
 		assert.deepStrictEqual(Array.from(item2.data), Array.from(item.data));
 	});
+
+	test('LanguageSelector', function () {
+		const out = LanguageSelector.from({ language: 'bat', notebookType: 'xxx' });
+		assert.ok(typeof out === 'object');
+		assert.deepStrictEqual(out, {
+			language: 'bat',
+			notebookType: 'xxx',
+			scheme: undefined,
+			pattern: undefined,
+			exclusive: undefined,
+		});
+	});
 });