Fix tests to reflect recent changes

This is an attempt to reduce flakiness (see https://github.com/matrix-org/matrix-react-sdk/pull/781 also)

test/app-tests/joining.js

@@ -23,6 +23,7 @@ var jssdk = require('matrix-js-sdk');
 var sdk = require('matrix-react-sdk');
 var peg = require('matrix-react-sdk/lib/MatrixClientPeg');
 var dis = require('matrix-react-sdk/lib/dispatcher');
+var PageTypes = require('matrix-react-sdk/lib/PageTypes');
 var MatrixChat = sdk.getComponent('structures.MatrixChat');
 var RoomDirectory = sdk.getComponent('structures.RoomDirectory');
 var RoomPreviewBar = sdk.getComponent('rooms.RoomPreviewBar');
@@ -90,9 +91,7 @@ describe('joining a room', function () {
             matrixChat = ReactDOM.render(mc, parentDiv);
 
             // switch to the Directory
-            dis.dispatch({
+            matrixChat._setPage(PageTypes.RoomDirectory);
-                action: 'view_room_directory',
-            });
 
             var roomView;
             // wait for /sync to happen

test/app-tests/loading.js

@@ -104,6 +104,23 @@ describe('loading:', function () {
             }
         }
 
+        // Parse the given window.location and return parameters that can be used when calling
+        // MatrixChat.showScreen(screen, params)
+        function getScreenFromLocation(location) {
+            const fragparts = parseQsFromFragment(location);
+            return {
+                screen: fragparts.location.substring(1),
+                params: fragparts.params,
+            }
+        }
+
+        function routeUrl(location, matrixChat) {
+            console.log(Date.now() + "Routing URL " + location);
+            const s = getScreenFromLocation(location);
+            console.log("Showing screen", s);
+            matrixChat.showScreen(s.screen, s.params);
+        }
+
         const MatrixChat = sdk.getComponent('structures.MatrixChat');
         const fragParts = parseQsFromFragment(windowLocation);
         var params = parseQs(windowLocation);
@@ -118,16 +135,10 @@ describe('loading:', function () {
                 startingFragmentQueryParams={fragParts.params}
                 enableGuest={true}
                 onLoadCompleted={loadCompleteDefer.resolve}
+                initialScreenAfterLogin={getScreenFromLocation(windowLocation)}
             />, parentDiv
         );
 
-        function routeUrl(location, matrixChat) {
-            console.log(Date.now() + " Routing URL "+location);
-            var fragparts = parseQsFromFragment(location);
-            matrixChat.showScreen(fragparts.location.substring(1),
-                                  fragparts.params);
-        }
-
         // pause for a cycle, then simulate the window.onload handler
         window.setTimeout(() => {
             console.log(Date.now() + " simulating window.onload");
@@ -476,7 +487,8 @@ function awaitRoomView(matrixChat, retryLimit, retryCount) {
         retryCount = 0;
     }
 
-    if (!matrixChat.state.ready) {
+    if (matrixChat.state.loading ||
+        !(matrixChat.state.loggedIn && matrixChat.state.ready)) {
         console.log(Date.now() + " Awaiting room view: not ready yet.");
         if (retryCount >= retryLimit) {
             throw new Error("MatrixChat still not ready after " +