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/EmbedCodeButton_spec.jsx

@@ -0,0 +1,65 @@
+/**
+ * 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, mount } from 'enzyme';
+import { OverlayTrigger } from 'react-bootstrap';
+import sinon from 'sinon';
+
+import EmbedCodeButton from '../../../../src/explore/components/EmbedCodeButton';
+import * as exploreUtils from '../../../../src/explore/exploreUtils';
+
+describe('EmbedCodeButton', () => {
+  const defaultProps = {
+    latestQueryFormData: { datasource: '107__table' },
+  };
+
+  it('renders', () => {
+    expect(React.isValidElement(<EmbedCodeButton {...defaultProps} />)).toBe(
+      true,
+    );
+  });
+
+  it('renders overlay trigger', () => {
+    const wrapper = shallow(<EmbedCodeButton {...defaultProps} />);
+    expect(wrapper.find(OverlayTrigger)).toHaveLength(1);
+  });
+
+  it('returns correct embed code', () => {
+    const stub = sinon
+      .stub(exploreUtils, 'getExploreLongUrl')
+      .callsFake(() => 'endpoint_url');
+    const wrapper = mount(<EmbedCodeButton {...defaultProps} />);
+    wrapper.setState({
+      height: '1000',
+      width: '2000',
+    });
+    const embedHTML =
+      '<iframe\n' +
+      '  width="2000"\n' +
+      '  height="1000"\n' +
+      '  seamless\n' +
+      '  frameBorder="0"\n' +
+      '  scrolling="no"\n' +
+      '  src="http://localhostendpoint_url&height=1000"\n' +
+      '>\n' +
+      '</iframe>';
+    expect(wrapper.instance().generateEmbedHTML()).toBe(embedHTML);
+    stub.restore();
+  });
+});