MOBILE-4069 test: Add unit tests to CoreArray singleton

src/core/singletons/tests/array.test.ts

@@ -0,0 +1,31 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { CoreArray } from '@singletons/array';
+
+describe('CoreArray singleton', () => {
+
+    it('flattens arrays', () => {
+        expect(CoreArray.flatten([])).toEqual([]);
+        expect(CoreArray.flatten<number>([[1, 2], [3, 4], [5, 6]])).toEqual([1, 2, 3, 4, 5, 6]);
+    });
+
+    it('gets array without an item', () => {
+        const originalArray = ['foo', 'bar', 'baz'];
+
+        expect(CoreArray.withoutItem(originalArray, 'bar')).toEqual(['foo', 'baz']);
+        expect(CoreArray.withoutItem(originalArray, 'not found')).toEqual(['foo', 'bar', 'baz']);
+    });
+
+});