More Dashboard UX unit tests (#1603)

superset/assets/spec/javascripts/dashboard/CssEditor_spec.jsx

@@ -0,0 +1,21 @@
+import React from 'react';
+import CssEditor from '../../../javascripts/dashboard/components/CssEditor';
+import { mount } from 'enzyme';
+import { describe, it } from 'mocha';
+import { expect } from 'chai';
+
+
+describe('CssEditor', () => {
+  const mockedProps = {
+    triggerNode: <i className="fa fa-edit" />,
+  };
+  it('is valid', () => {
+    expect(
+      React.isValidElement(<CssEditor {...mockedProps} />)
+    ).to.equal(true);
+  });
+  it('renders the trigger node', () => {
+    const wrapper = mount(<CssEditor {...mockedProps} />);
+    expect(wrapper.find('.fa-edit')).to.have.length(1);
+  });
+});