test: add React Testing Library (#11771)

superset-frontend/spec/javascripts/sqllab/Timer_spec.jsx

@@ -1,48 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *   http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied.  See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-import React from 'react';
-import { styledMount as mount } from 'spec/helpers/theming';
-import Timer from 'src/components/Timer';
-import { now } from 'src/modules/dates';
-
-describe('Timer', () => {
-  let wrapper;
-  const mockedProps = {
-    endTime: null,
-    isRunning: true,
-    status: 'warning',
-  };
-
-  beforeEach(() => {
-    mockedProps.startTime = now() + 1;
-    wrapper = mount(<Timer {...mockedProps} />);
-  });
-
-  it('renders correctly', () => {
-    expect(React.isValidElement(<Timer {...mockedProps} />)).toBe(true);
-    expect(wrapper.find('span').hasClass('label-warning')).toBe(true);
-  });
-
-  it('should start timer and sets clockStr', async () => {
-    expect.assertions(2);
-    expect(wrapper.find('span').text()).toBe('');
-    await new Promise(r => setTimeout(r, 35));
-    expect(wrapper.find('span').text()).not.toBe('');
-  });
-});