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/ControlPanelSection_spec.jsx

@@ -0,0 +1,75 @@
+/**
+ * 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 { shallow } from 'enzyme';
+import { Panel } from 'react-bootstrap';
+
+import InfoTooltipWithTrigger from '../../../../src/components/InfoTooltipWithTrigger';
+
+import ControlPanelSection from '../../../../src/explore/components/ControlPanelSection';
+
+const defaultProps = {
+  children: <div>a child element</div>,
+};
+
+const optionalProps = {
+  label: 'my label',
+  description: 'my description',
+  tooltip: 'my tooltip',
+};
+
+describe('ControlPanelSection', () => {
+  let wrapper;
+  let props;
+  it('is a valid element', () => {
+    expect(
+      React.isValidElement(<ControlPanelSection {...defaultProps} />),
+    ).toBe(true);
+  });
+
+  it('renders a Panel component', () => {
+    wrapper = shallow(<ControlPanelSection {...defaultProps} />);
+    expect(wrapper.find(Panel)).toHaveLength(1);
+  });
+
+  describe('with optional props', () => {
+    beforeEach(() => {
+      props = Object.assign(defaultProps, optionalProps);
+      wrapper = shallow(<ControlPanelSection {...props} />);
+    });
+
+    it('renders a label if present', () => {
+      expect(
+        wrapper
+          .find(Panel)
+          .dive()
+          .text(),
+      ).toContain('my label');
+    });
+
+    it('renders a InfoTooltipWithTrigger if label and tooltip is present', () => {
+      expect(
+        wrapper
+          .find(Panel)
+          .dive()
+          .find(InfoTooltipWithTrigger),
+      ).toHaveLength(1);
+    });
+  });
+});