unit tests for OptionDescription component (#3678)

superset/assets/spec/javascripts/components/OptionDescription_spec.jsx

@@ -0,0 +1,32 @@
+import React from 'react';
+import { shallow } from 'enzyme';
+import { describe, it } from 'mocha';
+import { expect } from 'chai';
+
+import InfoTooltipWithTrigger from '../../../javascripts/components/InfoTooltipWithTrigger';
+import OptionDescription from '../../../javascripts/components/OptionDescription';
+
+const defaultProps = {
+  option: {
+    label: 'Some option',
+    description: 'Description for some option',
+  },
+};
+
+describe('OptionDescription', () => {
+  let wrapper;
+  let props;
+
+  beforeEach(() => {
+    props = { option: Object.assign({}, defaultProps.option) };
+    wrapper = shallow(<OptionDescription {...props} />);
+  });
+
+  it('renders an InfoTooltipWithTrigger', () => {
+    expect(wrapper.find(InfoTooltipWithTrigger)).to.have.lengthOf(1);
+  });
+
+  it('renders a span with the label', () => {
+    expect(wrapper.find('.option-label').text()).to.equal('Some option');
+  });
+});