get rid of global notify (#5355)

* [toasts] get rid of notify globals, refactor messageToasts for use by entire app

* [remove notify] use arrow func in ajax call

* fix lint + tests

* actually fix tests from messageToast refactor

* add 'test:one' npm script

* debugger

* [toasts] convert bootstrap flash messages to toasts in explore + sqllab

* [toasts][tests] import from right file

superset/assets/spec/javascripts/sqllab/App_spec.jsx

@@ -14,23 +14,24 @@ import { sqlLabReducer } from '../../../src/SqlLab/reducers';
 describe('App', () => {
   const middlewares = [thunk];
   const mockStore = configureStore(middlewares);
-  const store = mockStore(sqlLabReducer(undefined, {}));
+  const store = mockStore({ sqlLab: sqlLabReducer(undefined, {}), messageToasts: [] });
 
   let wrapper;
   beforeEach(() => {
-    wrapper = shallow(<App />, {
-      context: { store },
-    }).dive();
+    wrapper = shallow(<App />, { context: { store } }).dive();
   });
+
   it('is valid', () => {
     expect(React.isValidElement(<App />)).to.equal(true);
   });
+
   it('should handler resize', () => {
     sinon.spy(wrapper.instance(), 'getHeight');
     wrapper.instance().handleResize();
     expect(wrapper.instance().getHeight.callCount).to.equal(1);
     wrapper.instance().getHeight.restore();
   });
+
   it('should render', () => {
     expect(wrapper.find('.SqlLab')).to.have.length(1);
     expect(wrapper.find(TabbedSqlEditors)).to.have.length(1);