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ioneapps-maagapp-ee31119a522d/__tests__/reducers/settings.js

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+/* global describe: true, test:true, expect:true */
+import { settings as settingsReducer, initialState } from '~/reducers/settings';
+import {
+	GET_SETTINGS_SUCCESS,
+	SET_SETTINGS_SUCCESS,
+	LOGOUT_SUCCESS,
+} from '~/store/actionTypes';
+
+describe('settings reducer', () => {
+	test('CASE 1: should return initial state', () => {
+		expect(settingsReducer(undefined, { type: 'Default' }))
+			.toEqual(initialState);
+	});
+
+	test('CASE 2: should empty the state on LOGOUT_SUCCESS', () => {
+		expect(settingsReducer({ languageCode: 'en' }, { type: LOGOUT_SUCCESS }))
+			.toEqual(initialState);
+	});
+
+	test('CASE 3: should return settings on GET_SETTINGS_SUCCESS', () => {
+		const settings = { autoAcceptFriend: true, defaultPlaylistId: 123 };
+		const expectedState = { ...initialState, ...settings };
+		expect(settingsReducer(undefined, { type: GET_SETTINGS_SUCCESS, payload: { settings } }))
+			.toEqual(expectedState);
+	});
+
+	test('CASE 3: should return settings on SET_SETTINGS_SUCCESS', () => {
+		const settings = { defaultPlaylistId: 123 };
+		const existingState = { autoAcceptFriend: false, defaultPlaylistId: -1 };
+		const expectedState = { ...existingState, ...settings };
+		expect(settingsReducer(existingState, { type: SET_SETTINGS_SUCCESS, payload: { settings } }))
+			.toEqual(expectedState);
+	});
+});