SIP-32: Moving frontend code to the base of the repo (#9098)

* move assets out, get webpack dev working

* update docs to reference superset-frontend

* draw the rest of the owl

* fix docs

* fix webpack script

* rats

* correct docs

* fix tox dox

superset-frontend/spec/javascripts/explore/components/TimeSeriesColumnControl_spec.jsx

@@ -0,0 +1,49 @@
+/**
+ * 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.
+ */
+/* eslint-disable no-unused-expressions */
+import React from 'react';
+import { FormControl, OverlayTrigger } from 'react-bootstrap';
+import sinon from 'sinon';
+import { shallow } from 'enzyme';
+
+import TimeSeriesColumnControl from '../../../../src/explore/components/controls/TimeSeriesColumnControl';
+
+const defaultProps = {
+  name: 'x_axis_label',
+  label: 'X Axis Label',
+  onChange: sinon.spy(),
+};
+
+describe('SelectControl', () => {
+  let wrapper;
+  let inst;
+  beforeEach(() => {
+    wrapper = shallow(<TimeSeriesColumnControl {...defaultProps} />);
+    inst = wrapper.instance();
+  });
+
+  it('renders an OverlayTrigger', () => {
+    expect(wrapper.find(OverlayTrigger)).toHaveLength(1);
+  });
+
+  it('renders an Popover', () => {
+    const popOver = shallow(inst.renderPopover());
+    expect(popOver.find(FormControl)).toHaveLength(3);
+  });
+});