Add test, fix merge error

app/controllers/projects/merge_requests_controller.rb

@@ -409,12 +409,13 @@ class Projects::MergeRequestsController < Projects::ApplicationController
         @merge_request.environments.map do |environment|
           next unless can?(current_user, :read_environment, environment)
 
+          project = environment.project
           deployment = environment.first_deployment_for(@merge_request.diff_head_commit)
 
           {
             id: environment.id,
             name: environment.name,
-            url: namespace_project_environment_path(@project.namespace, @project, environment),
+            url: namespace_project_environment_path(project.namespace, project, environment),
             external_url: environment.external_url,
             external_url_formatted: environment.formatted_external_url,
             deployed_at: deployment.try(:created_at),

db/schema.rb

@@ -446,17 +446,6 @@ ActiveRecord::Schema.define(version: 20161007133303) do
 
   add_index "identities", ["user_id"], name: "index_identities_on_user_id", using: :btree
 
-  create_table "integrations", force: :cascade do |t|
-    t.integer  "project_id"
-    t.string   "name"
-    t.string   "external_token"
-    t.datetime "created_at",     null: false
-    t.datetime "updated_at",     null: false
-  end
-
-  add_index "integrations", ["external_token"], name: "index_integrations_on_external_token", unique: true, using: :btree
-  add_index "integrations", ["project_id"], name: "index_integrations_on_project_id", using: :btree
-
   create_table "issue_metrics", force: :cascade do |t|
     t.integer "issue_id", null: false
     t.datetime "first_mentioned_in_commit_at"
@@ -624,6 +613,7 @@ ActiveRecord::Schema.define(version: 20161007133303) do
     t.datetime "updated_at", null: false
   end
 
+  add_index "merge_request_metrics", ["first_deployed_to_production_at"], name: "index_merge_request_metrics_on_first_deployed_to_production_at", using: :btree
   add_index "merge_request_metrics", ["merge_request_id"], name: "index_merge_request_metrics", using: :btree
 
   create_table "merge_requests", force: :cascade do |t|

spec/controllers/projects/merge_requests_controller_spec.rb

@@ -756,4 +756,34 @@ describe Projects::MergeRequestsController do
       post_assign_issues
     end
   end
+
+  describe 'GET ci_environments_status' do
+    context 'when the environment is from a forked project' do
+      let!(:forked)       { create(:project) }
+      let!(:environment)  { create(:environment, project: forked) }
+      let!(:deployment)   { create(:deployment, environment: environment, sha: forked.commit.id, ref: 'master') }
+      let(:json_response) { JSON.parse(response.body) }
+      let(:admin)         { create(:admin) }
+
+      let(:merge_request) do
+        create(:forked_project_link, forked_to_project: forked,
+                                     forked_from_project: project)
+
+        create(:merge_request, source_project: forked, target_project: project)
+      end
+
+      before do
+        forked.team << [user, :master]
+
+        get :ci_environments_status,
+          namespace_id: merge_request.project.namespace.to_param,
+          project_id: merge_request.project.to_param,
+          id: merge_request.iid, format: 'json'
+      end
+
+      it 'links to the environment on that project' do
+        expect(json_response.first['url']).to match /#{forked.path_with_namespace}/
+      end
+    end
+  end
 end