Remove ajax stubbing from post-stream tests

app/assets/javascripts/discourse/models/post-stream.js.es6

@@ -731,20 +731,16 @@ const PostStream = RestModel.extend({
   loadIntoIdentityMap(postIds) {
     // If we don't want any posts, return a promise that resolves right away
     if (Em.isEmpty(postIds)) {
-      return Ember.RSVP.resolve();
+      return Ember.RSVP.resolve([]);
     }
 
-    const url = "/t/" + this.get('topic.id') + "/posts.json",
-        data = { post_ids: postIds },
-        postStream = this;
-
+    const url = "/t/" + this.get('topic.id') + "/posts.json";
+    const data = { post_ids: postIds };
     const store = this.store;
-    return Discourse.ajax(url, {data: data}).then(function(result) {
+    return Discourse.ajax(url, {data: data}).then(result => {
       const posts = Em.get(result, "post_stream.posts");
       if (posts) {
-        posts.forEach(function (p) {
-          postStream.storePost(store.createRecord('post', p));
-        });
+        posts.forEach(p => this.storePost(store.createRecord('post', p)));
       }
     });
   },

test/javascripts/helpers/create-pretender.js.es6

@@ -153,6 +153,16 @@ export default function() {
                                            slug: request.params.slug } });
     });
 
+    this.get('/t/:topic_id/posts.json', request => {
+      const postIds = request.queryParams.post_ids;
+      const posts = postIds.map(p => ({id: parseInt(p), post_number: parseInt(p) }));
+      return response(200, { post_stream: { posts } });
+    });
+
+    this.get('/posts/:post_id/reply-history.json', () => {
+      return response(200, [ { id: 2222, post_number: 2222 } ]);
+    });
+
     this.post('/posts', function(request) {
       const data = parsePostData(request.requestBody);
 

test/javascripts/models/post-stream-test.js.es6

@@ -302,47 +302,28 @@ test("identity map", function() {
   deepEqual(postStream.listUnloadedIds([1, 2, 3, 4]), [2, 4], "it only returns unloaded posts");
 });
 
-asyncTestDiscourse("loadIntoIdentityMap with no data", function() {
-  const postStream = buildStream(1234);
-  expect(1);
-
-  sandbox.stub(Discourse, "ajax");
-  postStream.loadIntoIdentityMap([]).then(function() {
-    ok(!Discourse.ajax.calledOnce, "an empty array returned a promise yet performed no ajax request");
-    start();
+test("loadIntoIdentityMap with no data", () => {
+  buildStream(1234).loadIntoIdentityMap([]).then(result => {
+    equal(result.length, 0, 'requesting no posts produces no posts');
   });
 });
 
-asyncTestDiscourse("loadIntoIdentityMap with post ids", function() {
+test("loadIntoIdentityMap with post ids", function() {
   const postStream = buildStream(1234);
-  expect(1);
-
-  sandbox.stub(Discourse, "ajax").returns(Ember.RSVP.resolve({
-    post_stream: {
-      posts: [{id: 10, post_number: 10}]
-    }
-  }));
 
   postStream.loadIntoIdentityMap([10]).then(function() {
     present(postStream.findLoadedPost(10), "it adds the returned post to the store");
-    start();
   });
 });
 
-asyncTestDiscourse("loading a post's history", function() {
+test("loading a post's history", function() {
   const postStream = buildStream(1234);
   const store = postStream.store;
-  expect(3);
-
   const post = store.createRecord('post', {id: 4321});
-  const secondPost = store.createRecord('post', {id: 2222});
 
-  sandbox.stub(Discourse, "ajax").returns(Ember.RSVP.resolve([secondPost]));
   postStream.findReplyHistory(post).then(function() {
-    ok(Discourse.ajax.calledOnce, "it made the ajax request");
     present(postStream.findLoadedPost(2222), "it stores the returned post in the identity map");
     present(post.get('replyHistory'), "it sets the replyHistory attribute for the post");
-    start();
   });
 });