feat: utils/stores unit tests

frontend/tests/utils/stores/PlaylistViewStore.test.ts

@@ -0,0 +1,83 @@
+import { BrowserCache } from '../../../src/static/js/utils/classes/';
+import store from '../../../src/static/js/utils/stores/PlaylistViewStore';
+
+jest.mock('../../../src/static/js/utils/classes/', () => ({
+    BrowserCache: jest.fn().mockImplementation(() => ({
+        get: jest.fn(),
+        set: jest.fn(),
+    })),
+}));
+
+jest.mock('../../../src/static/js/utils/settings/config', () => ({
+    config: jest.fn(() => jest.requireActual('../../tests-constants').sampleMediaCMSConfig),
+}));
+
+jest.mock('../../../src/static/js/utils/helpers', () => ({
+    BrowserEvents: jest.fn().mockImplementation(() => ({
+        doc: jest.fn(),
+        win: jest.fn(),
+    })),
+    exportStore: jest.fn((store) => store),
+}));
+
+describe('utils/store', () => {
+    describe('PlaylistViewStore', () => {
+        const browserCacheInstance = (BrowserCache as jest.Mock).mock.results[0].value;
+        const browserCacheSetSpy = browserCacheInstance.set;
+
+        const handler = store.actions_handler.bind(store);
+
+        const onLoopRepeatUpdated = jest.fn();
+        const onShuffleUpdated = jest.fn();
+        const onSavedUpdated = jest.fn();
+
+        store.on('loop-repeat-updated', onLoopRepeatUpdated);
+        store.on('shuffle-updated', onShuffleUpdated);
+        store.on('saved-updated', onSavedUpdated);
+
+        test('Validate initial values', () => {
+            expect(store.get('INVALID_TYPE')).toBe(null);
+            expect(store.get('logged-in-user-playlist')).toBe(false);
+            expect(store.get('enabled-loop')).toBe(undefined);
+            expect(store.get('enabled-shuffle')).toBe(undefined);
+            expect(store.get('saved-playlist')).toBe(false);
+        });
+
+        describe('Trigger and validate actions behavior', () => {
+            // @todo: Revisit the behavior of this action
+            test('Action type: "TOGGLE_LOOP"', () => {
+                handler({ type: 'TOGGLE_LOOP' });
+
+                expect(onLoopRepeatUpdated).toHaveBeenCalledTimes(1);
+                expect(onLoopRepeatUpdated).toHaveBeenCalledWith();
+
+                expect(store.get('enabled-loop')).toBe(undefined);
+
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('loopPlaylist[null]', true);
+            });
+
+            // @todo: Revisit the behavior of this action
+            test('Action type: "TOGGLE_SHUFFLE"', () => {
+                handler({ type: 'TOGGLE_SHUFFLE' });
+
+                expect(onShuffleUpdated).toHaveBeenCalledTimes(1);
+                expect(onShuffleUpdated).toHaveBeenCalledWith();
+
+                expect(store.get('enabled-shuffle')).toBe(undefined);
+
+                expect(browserCacheSetSpy).toHaveBeenCalledWith('shufflePlaylist[null]', true);
+            });
+
+            test('Action type: "TOGGLE_SAVE"', () => {
+                const initialValue = store.get('saved-playlist');
+
+                handler({ type: 'TOGGLE_SAVE' });
+
+                expect(onSavedUpdated).toHaveBeenCalledTimes(1);
+                expect(onSavedUpdated).toHaveBeenCalledWith();
+
+                expect(store.get('saved-playlist')).toBe(!initialValue);
+            });
+        });
+    });
+});