stub out some lightweight unit tests for extHostEditorTabs (#144192)

src/vs/workbench/api/test/browser/extHostEditorTabs.test.ts

@@ -0,0 +1,71 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import assert = require('assert');
+import { mock } from 'vs/base/test/common/mock';
+import { IEditorTabDto, MainThreadEditorTabsShape, TabKind } from 'vs/workbench/api/common/extHost.protocol';
+import { ExtHostEditorTabs } from 'vs/workbench/api/common/extHostEditorTabs';
+import { SingleProxyRPCProtocol } from 'vs/workbench/api/test/common/testRPCProtocol';
+
+suite('ExtHostEditorTabs', function () {
+
+
+	test('empty', function () {
+
+		const extHostEditorTabs = new ExtHostEditorTabs(
+			SingleProxyRPCProtocol(new class extends mock<MainThreadEditorTabsShape>() {
+				// override/implement $moveTab or $closeTab
+			})
+		);
+
+		assert.strictEqual(extHostEditorTabs.tabGroups.all.length, 0);
+		assert.strictEqual(extHostEditorTabs.tabGroups.activeTabGroup, undefined);
+	});
+
+	test('single tab', function () {
+
+		const extHostEditorTabs = new ExtHostEditorTabs(
+			SingleProxyRPCProtocol(new class extends mock<MainThreadEditorTabsShape>() {
+				// override/implement $moveTab or $closeTab
+			})
+		);
+
+		const tab: IEditorTabDto = {
+			isActive: true,
+			isDirty: true,
+			isPinned: true,
+			label: 'label1',
+			viewColumn: 0,
+			additionalResourcesAndViewIds: [],
+			kind: TabKind.Other
+		};
+
+		extHostEditorTabs.$acceptEditorTabModel([{
+			isActive: true,
+			viewColumn: 0,
+			groupId: 12,
+			tabs: [tab],
+			activeTab: { ...tab }
+		}]);
+		assert.strictEqual(extHostEditorTabs.tabGroups.all.length, 1);
+		const [first] = extHostEditorTabs.tabGroups.all;
+		assert.ok(first.activeTab);
+		assert.strictEqual(first.tabs.indexOf(first.activeTab), 0);
+
+		{
+			extHostEditorTabs.$acceptEditorTabModel([{
+				isActive: true,
+				viewColumn: 0,
+				groupId: 12,
+				tabs: [tab],
+				activeTab: undefined! // TODO@lramos15 unused
+			}]);
+			assert.strictEqual(extHostEditorTabs.tabGroups.all.length, 1);
+			const [first] = extHostEditorTabs.tabGroups.all;
+			assert.ok(first.activeTab);
+			assert.strictEqual(first.tabs.indexOf(first.activeTab), 0);
+		}
+	});
+});