test: extend oneui util tests

src/utils/OneUI/OneUI.js

@@ -16,7 +16,7 @@ class OneUI {
      * @param {number} themeConfig.maxTime - Max time to wait for the theme to be loaded
      * @param {Object} themeConfig.ponyfillOptions - Set of options that can be used to configure the ponyfill. Options: https://www.npmjs.com/package/css-vars-ponyfill#options
      */
-    static init({ themeURL = '', maxTime = DEFAULT_LOADING_TIMEOUT, ponyfillOptions } = {}) {
+    static init({ themeURL = '', maxTime = DEFAULT_LOADING_TIMEOUT, ponyfillOptions }) {
         const loadTheme = Promise.all([
             OneUI.applyTheme(themeURL),
             OneUI.startCssVarsPonyfill(ponyfillOptions)

src/utils/OneUI/__tests__/OneUI.spec.js

@@ -111,4 +111,11 @@ describe('OneUI loader that starts the ponyfill and attach the theme to DOM', ()
             expect(ponyfillOptions.onError).toBeCalledTimes(1);
         });
     });
+
+    it('should throw an error when timeout expired', () =>
+        expect(
+            OneUI.init({
+                maxTime: 1
+            })
+        ).rejects.toThrowErrorMatchingSnapshot());
 });

src/utils/OneUI/__tests__/__snapshots__/OneUI.spec.js.snap

@@ -0,0 +1,3 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`OneUI loader that starts the ponyfill and attach the theme to DOM should throw an error when timeout expired 1`] = `"Theme \\"\\" not loaded. Loading time expired"`;