Stop launching dataGathering phase after auth. Add usernameAlias

This PR fixes one bug and adds one new component which is part of
version 2.1.0 of the WDC.

The first change is to stop launching the dataGathering phase after
testing the auth phase. This is necessary to properly simulate adding
user credentials independently of a datasource as we do on Tableau
Server.

The other change is to add support for the new usernameAlias property
which provides an end-user readable description of the username.

Did some manual testing and unit tests pass

Author: sdesmond46

Simulator/components/SimulatorAttributes.jsx

@@ -77,6 +77,14 @@ class SimulatorAttributes extends Component {
             value={this.props.wdcAttrs.password}
             onChange={this.handleAttrChange}
           />
+          <ControlLabel> Username Alias </ControlLabel>
+          <FormControl
+            type="text"
+            disabled={this.props.disabled}
+            id="usernameAlias"
+            value={this.props.wdcAttrs.usernameAlias}
+            onChange={this.handleAttrChange}
+          />
           {this.props.showAdvanced ?
             <div className="advanced">
               <PageHeader>
@@ -165,6 +173,7 @@ SimulatorAttributes.propTypes = {
     connectionData: PropTypes.string.isRequired,
     username: PropTypes.string.isRequired,
     password: PropTypes.string.isRequired,
+    usernameAlias: PropTypes.string.isRequired,
     authPurpose: PropTypes.string.isRequired,
     locale: PropTypes.string.isRequired,
   }).isRequired,

Simulator/reducers/reducers.js

@@ -1,5 +1,5 @@
 import { handleActions } from 'redux-actions';
-import { defaultWdcAttrs } from '../utils/consts';
+import { defaultWdcAttrs, phases } from '../utils/consts';
 
 // The redux reducers, which create the next state object
 // from the payload of any given action.
@@ -9,8 +9,20 @@ import { defaultWdcAttrs } from '../utils/consts';
 // http://redux.js.org/docs/recipes/UsingObjectSpreadOperator.html
 
 export default handleActions({
-  SET_WDC_ATTRS: (state, action) =>
-    ({ ...state, wdcAttrs: action.payload }),
+  SET_WDC_ATTRS: (state, action) => {
+    const { currentPhase } = state;
+    let newAttrs = action.payload;
+    if (currentPhase === phases.AUTH) {
+      // If we are in the auth phase, we are only allowed to update the username/password attributes
+      newAttrs = {
+        username: newAttrs.username,
+        usernameAlias: newAttrs.usernameAlias,
+        password: newAttrs.password,
+      };
+    }
+
+    return { ...state, wdcAttrs: newAttrs };
+  },
   SET_WDC_URL: (state, action) =>
     ({ ...state, wdcUrl: action.payload }),
   SET_ADDRESS_BAR_URL: (state, action) =>

Simulator/utils/consts.js

@@ -29,6 +29,7 @@ export const defaultWdcAttrs = {
   connectionData: '',
   username: '',
   password: '',
+  usernameAlias: '',
   platformOS: '',
   platformEdition: '',
   platformVersion: '',