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/exploreActions_spec.js

@@ -0,0 +1,39 @@
+/**
+ * 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 { defaultState } from '../../../src/explore/store';
+import exploreReducer from '../../../src/explore/reducers/exploreReducer';
+import * as actions from '../../../src/explore/actions/exploreActions';
+
+describe('reducers', () => {
+  it('sets correct control value given a key and value', () => {
+    const newState = exploreReducer(
+      defaultState,
+      actions.setControlValue('x_axis_label', 'x', []),
+    );
+    expect(newState.controls.x_axis_label.value).toBe('x');
+  });
+  it('setControlValue works as expected with a checkbox', () => {
+    const newState = exploreReducer(
+      defaultState,
+      actions.setControlValue('show_legend', true, []),
+    );
+    expect(newState.controls.show_legend.value).toBe(true);
+  });
+});