Utilities test

test/adapter/lineNumberTransformer.test.ts

@@ -1,5 +1,3 @@
-/// <reference path='../../typings/tsd.d.ts' />
-
 /*---------------------------------------------------------
  * Copyright (C) Microsoft Corporation. All rights reserved.
  *--------------------------------------------------------*/

test/webkit/utilities.test.ts

@@ -0,0 +1,88 @@
+/*---------------------------------------------------------
+ * Copyright (C) Microsoft Corporation. All rights reserved.
+ *--------------------------------------------------------*/
+
+import * as mockery from 'mockery';
+import * as assert from 'assert';
+
+/** Utilities without mocks - use for type only */
+import * as _Utilities from '../../webkit/utilities';
+
+class FSMock {
+    /** Throws if the path doesn't exist */
+    public statSync(path: string): void { }
+}
+
+const MODULE_UNDER_TEST = '../../webkit/utilities';
+suite('Utilities', () => {
+    suite('getPlatform()/getBrowserPath()', () => {
+        const fsMock = new FSMock();
+
+        setup(() => {
+            // Set up mockery with SourceMaps mock
+            mockery.enable({ useCleanCache: true });
+            mockery.registerMock('fs', fsMock);
+            mockery.registerAllowable(MODULE_UNDER_TEST);
+        });
+
+        teardown(() => {
+            mockery.deregisterAll();
+            mockery.disable();
+        });
+
+        test('osx', () => {
+            mockery.registerMock('os', { platform: () => 'darwin' });
+            let Utilities: typeof _Utilities = require(MODULE_UNDER_TEST);
+            assert.equal(Utilities.getPlatform(), Utilities.Platform.OSX);
+            assert.equal(
+                Utilities.getBrowserPath(),
+                '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome');
+        });
+
+        test('win', () => {
+            mockery.registerMock('os', { platform: () => 'win32' });
+
+            // Overwrite the statSync mock to say the x86 path doesn't exist
+            fsMock.statSync = (path: string) => {
+                if (path.indexOf('(x86)') >= 0) throw new Error('Not found');
+            };
+
+            let Utilities: typeof _Utilities = require(MODULE_UNDER_TEST);
+            assert.equal(Utilities.getPlatform(), Utilities.Platform.Windows);
+            assert.equal(
+                Utilities.getBrowserPath(),
+                'C:\\Program Files\\Google\\Chrome\\Application\\chrome.exe');
+        });
+
+        test('winx86', () => {
+            mockery.registerMock('os', { platform: () => 'win32' });
+            let Utilities: typeof _Utilities = require(MODULE_UNDER_TEST);
+            assert.equal(Utilities.getPlatform(), Utilities.Platform.Windows);
+            assert.equal(
+                Utilities.getBrowserPath(),
+                'C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe');
+        });
+
+        test('linux', () => {
+            mockery.registerMock('os', { platform: () => 'linux' });
+            let Utilities: typeof _Utilities = require(MODULE_UNDER_TEST);
+            assert.equal(Utilities.getPlatform(), Utilities.Platform.Linux);
+            assert.equal(
+                Utilities.getBrowserPath(),
+                '/usr/bin/google-chrome');
+        });
+
+        test('freebsd (default to Linux for anything unknown)', () => {
+            mockery.registerMock('os', { platform: () => 'freebsd' });
+            let Utilities: typeof _Utilities = require(MODULE_UNDER_TEST);
+            assert.equal(Utilities.getPlatform(), Utilities.Platform.Linux);
+            assert.equal(
+                Utilities.getBrowserPath(),
+                '/usr/bin/google-chrome');
+        });
+    });
+
+    suite('reversedArr', () => {
+
+    });
+});

webkit/utilities.ts

@@ -75,6 +75,9 @@ export class DebounceHelper {
     }
 }
 
+/**
+ * Returns a reversed version of arr. Doesn't modify the input.
+ */
 export function reversedArr(arr: any[]): any[] {
     return arr.reduce((reversed: any[], x: any) => {
         reversed.unshift(x);