Tests: port user settings test to single runner

update test doubles

refactor test

register test with runner

client/lib/user-settings/test/index.js

@@ -1,19 +1,32 @@
 /**
  * External dependencies
  */
-var assert = require( 'chai' ).assert;
+import { assert } from 'chai';
 
 /**
  * Internal dependencies
  */
-var userSettings = require( '../index.js' );
+import useFakeDom from 'test/helpers/use-fake-dom';
+import useMockery from 'test/helpers/use-mockery';
+import wpMock from './mocks/wp';
+import userUtilsMock from './mocks/user-utils';
 
-describe( 'User Settings', function() {
-	before( function() {
+describe( 'User Settings', () => {
+	let userSettings;
+
+	useMockery( mockery => {
+		mockery.registerMock( 'lib/wp', wpMock );
+		mockery.registerMock( 'lib/user/utils', userUtilsMock );
+	} );
+
+	useFakeDom();
+
+	before( () => {
+		userSettings = require( '..' );
 		userSettings.fetchSettings();
 	} );
 
-	it( 'should consider overridden settings as saved', function( done ) {
+	it( 'should consider overridden settings as saved', done => {
 		assert.isTrue( userSettings.updateSetting( 'test', true ) );
 		assert.isTrue( userSettings.updateSetting( 'lang_id', true ) );
 
@@ -25,7 +38,6 @@ describe( 'User Settings', function() {
 		function assertCorrectSettingIsRemoved() {
 			assert.isUndefined( userSettings.unsavedSettings.test );
 			assert.isTrue( userSettings.unsavedSettings.lang_id );
-
 			done();
 		}
 	} );

client/lib/user-settings/test/mocks/user-utils.js

@@ -0,0 +1,5 @@
+export default {
+	isLoggedIn() {
+		return true;
+	}
+};

client/lib/user-settings/test/mocks/wp.js

@@ -0,0 +1,25 @@
+const me = function() {
+	return {
+		get() {},
+		settings() {
+			return {
+				get( callback ) {
+					callback( false, {
+						test: false,
+						lang_id: false
+					} );
+				},
+				update( settings, callback ) {
+					setTimeout( () => callback( null, settings ) );
+				}
+			};
+		}
+	};
+}
+
+export default {
+	me,
+	undocumented() {
+		return { me };
+	}
+};

client/tests.json

@@ -377,6 +377,15 @@
 		"user": {
 			"test": [ "utils" ]
 		},
+		"user-settings": {
+			"test": [ "index" ]
+		},
+		"users": {
+			"test": [ "store" ]
+		},
+		"viewers": {
+			"test": [ "store" ]
+		},
 		"wp": {
 			"localization": {
 				"test": [ "index" ]