Finished feature specs

app/views/projects/blob/_bmpr.html.haml

 - content_for :page_specific_javascripts do
   = page_specific_javascript_bundle_tag('balsamiq_viewer')
 
-.file-content#js-balsamiq-viewer{ data: { endpoint: namespace_project_raw_path(@project.namespace, @project, @id) } }
+.file-content.balsamiq-viewer#js-balsamiq-viewer{ data: { endpoint: namespace_project_raw_path(@project.namespace, @project, @id) } }

spec/features/projects/blobs/balsamiq_preview_spec.rb

@@ -7,18 +7,21 @@ feature 'Balsamiq preview', :feature, :js do
   let(:project) { create(:project) }
   let(:branch) { 'add-balsamiq-file' }
   let(:path) { 'files/images/balsamiq.bmpr' }
+  let(:file_content) { find('.file-content') }
 
   before do
     project.add_master(user)
 
     login_as user
 
-    p namespace_project_blob_path(project.namespace, project, tree_join(branch, path))
-
     visit namespace_project_blob_path(project.namespace, project, tree_join(branch, path))
   end
 
-  it 'should' do
-    screenshot_and_open_image
+  it 'should show a loading icon' do
+    expect(file_content).to have_selector('.loading')
+  end
+
+  it 'should show a viewer container' do
+    expect(page).to have_selector('.balsamiq-viewer')
   end
 end

spec/support/test_env.rb

@@ -27,6 +27,7 @@ module TestEnv
     'expand-collapse-files'              => '025db92',
     'expand-collapse-lines'              => '238e82d',
     'video'                              => '8879059',
+    'add-balsamiq-file'                  => 'b89b56d',
     'crlf-diff'                          => '5938907',
     'conflict-start'                     => '824be60',
     'conflict-resolvable'                => '1450cd6',