Allow user to specify initial route via query parameter

app/gist/controller.js

@@ -16,7 +16,7 @@ export default Ember.Controller.extend({
   dependencyResolver: inject.service(),
   notify: inject.service('notify'),
 
-  queryParams: ['numColumns', 'fullScreen'],
+  queryParams: ['numColumns', 'fullScreen', 'route'],
   numColumns: 2,
   fullScreen: false,
 
@@ -91,6 +91,7 @@ export default Ember.Controller.extend({
 
     this.set('isBuilding', true);
     this.set('buildErrors', []);
+    this.set('model.initialRoute', this.get('route'));
 
     this.get('emberCli').compileGist(this.get('model')).then(buildOutput => {
       this.set('isBuilding', false);

app/services/ember-cli.js

@@ -196,6 +196,10 @@ export default Ember.Service.extend({
   },
 
   buildHtml (gist, appJS, appCSS) {
+    if (gist.get('initialRoute')) {
+      appJS += "window.location.hash='" + gist.get('initialRoute') + "';";
+    }
+
     let index = blueprints['index.html'];
     let twiddleJSON = this.getTwiddleJson(gist);
     let deps = twiddleJSON.dependencies;

tests/acceptance/routing-test.js

@@ -137,4 +137,18 @@ test('URL can be changed via the address bar', function(assert) {
   });
 });
 
+test('URL can be set via route query parameter', function(assert) {
+  runGist({
+    files: TWIDDLE_WITH_ROUTES,
+    initialRoute: "/about"
+  });
+
+  andThen(() => {
+    this.registerWaiter();
+  });
 
+  andThen(function() {
+    assert.equal(find(addressBar).val(), "/about", "Correct URL appears when set via query parameter");
+    assert.equal(outputContents(outletText), 'About Page', 'Initializing the URL to /about leads to the About Page being displayed');
+  });
+});

tests/helpers/run-gist.js

@@ -1,7 +1,17 @@
-export default function(app, files) {
-  const login = "Gaurav0";
-  const gist_id = "35de43cb81fc35ddffb2";
-  const commit = "f354c6698b02fe3243656c8dc5aa0303cc7ae81c";
+import Ember from "ember";
+
+const { isArray } = Ember;
+
+export default function(app, options) {
+  if (isArray(options)) {
+    options = { files: options };
+  }
+
+  const login = options.login || "Gaurav0";
+  const gist_id = options.gist_id || "35de43cb81fc35ddffb2";
+  const commit = options.commit || "f354c6698b02fe3243656c8dc5aa0303cc7ae81c";
+  const initialRoute = options.initialRoute || "/";
+  let files = options.files || [];
 
   files.push({
     filename: "initializers.setup-test.js",
@@ -29,7 +39,12 @@ export default function(app, files) {
     files: gistFiles
   });
 
-  visit('/35de43cb81fc35ddffb2');
+  let url = "/" + gist_id;
+  if (initialRoute !== "/") {
+    url += "?route=" + initialRoute;
+  }
+
+  visit(url);
 
-  return waitForLoadedIFrame();
+  return waitForLoadedIFrame(initialRoute);
 }

tests/helpers/wait-for-loaded-iframe.js

@@ -1,6 +1,6 @@
 import Ember from "ember";
 
-export default function() {
+export default function(app, url) {
   let iframe_window;
 
   andThen(function() {
@@ -16,6 +16,7 @@ export default function() {
   });
 
   return andThen(function() {
-    iframe_window.visit('/');
+    url = url || "/";
+    iframe_window.visit(url);
   });
 }