Js - use a default JQueryInterface in js components

js/tests/unit/util/jquery-stuff.spec.js

@@ -0,0 +1,34 @@
+import { getJqueryInterfaceForPlugin } from '../../../src/util/jquery-stuff'
+
+describe('Jquery Stuff', () => {
+  const fakejQuery = { fn: {} }
+
+  beforeEach(() => {
+    Object.defineProperty(window, 'jQuery', {
+      value: fakejQuery,
+      writable: true
+    })
+  })
+
+  afterEach(() => {
+    window.jQuery = undefined
+  })
+
+  describe('getJqueryInterfaceForPlugin', () => {
+    it('should return a plugin jQueryInterface if exists', () => {
+      const pluginMock = function () {}
+      pluginMock.NAME = 'test'
+      pluginMock.jQueryInterface = function () {}
+
+      expect(getJqueryInterfaceForPlugin(pluginMock)).toEqual(pluginMock.jQueryInterface)
+    })
+
+    it('should return the default `defaultJQueryInterface`, if plugin jQueryInterface doesn\'t exists', () => {
+      const pluginMock = function () {}
+      pluginMock.NAME = 'test'
+
+      expect(getJqueryInterfaceForPlugin(pluginMock)).not.toEqual(pluginMock.jQueryInterface)
+      expect(getJqueryInterfaceForPlugin(pluginMock)).toEqual(jasmine.any(Function))
+    })
+  })
+})