Add feature specs

app/controllers/projects/blob_controller.rb

@@ -30,8 +30,8 @@ class Projects::BlobController < Projects::ApplicationController
   end
 
   def show
-    branch_name = @ref if @repository.branch_exists?(@ref)
-    @environment = @project.environments_for(commit: @commit, ref: branch_name).last
+    environment_args = @repository.branch_exists?(@ref) ? { ref: @ref } : { commit: @commit }
+    @environment = @project.environments_for(**environment_args).last
     @environment = nil unless can?(current_user, :read_environment, @environment)
   end
 

app/controllers/projects/compare_controller.rb

@@ -57,8 +57,8 @@ class Projects::CompareController < Projects::ApplicationController
 
       @diffs = @compare.diffs(diff_options)
 
-      branch_name = @head_ref if @repository.branch_exists?(@head_ref)
-      @environment = @project.environments_for(commit: @commit, ref: branch_name).last
+      environment_args = @repository.branch_exists?(@head_ref) ? { ref: @head_ref } : { commit: @commit }
+      @environment = @project.environments_for(**environment_args).last
       @environment = nil unless can?(current_user, :read_environment, @environment)
 
       @diff_notes_disabled = true

app/models/repository.rb

@@ -519,6 +519,8 @@ class Repository
     unless Gitlab::Git.blank_ref?(sha)
       Blob.decorate(Gitlab::Git::Blob.find(self, sha, path))
     end
+  rescue Gitlab::Git::Repository::NoRepository
+    nil
   end
 
   def blob_by_oid(oid)

spec/features/projects/blobs/view_on_env_spec.rb

-require 'spec_helper'
-
-feature 'Blob' do
-  describe 'View on environment' do
-    # TODO: Test
-  end
-end

spec/features/projects/commit/view_on_env_spec.rb

-require 'spec_helper'
-
-feature 'Commit' do
-  describe 'Diff' do
-    describe 'View on environment' do
-      # TODO: Test
-    end
-  end
-end

spec/features/projects/compare/view_on_env_spec.rb

-require 'spec_helper'
-
-feature 'Compare' do
-  describe 'Diff' do
-    describe 'View on environment' do
-      # TODO: Test
-    end
-  end
-end

spec/features/projects/merge_requests/view_on_env_spec.rb

-require 'spec_helper'
-
-feature 'Merge Request' do
-  describe 'Diff' do
-    describe 'View on environment' do
-      # TODO: Test
-    end
-  end
-end

spec/features/projects/view_on_env_spec.rb

+require 'spec_helper'
+
+describe 'View on environment', js: true do
+  include WaitForAjax
+
+  let(:branch_name) { 'feature' }
+  let(:file_path) { 'files/ruby/feature.rb' }
+  let(:project) { create(:project) }
+  let(:user) { project.creator }
+
+  before do
+    project.team << [user, :master]
+  end
+
+  context 'when the branch has a route map' do
+    let(:route_map) do
+      <<-MAP.strip_heredoc
+      - source: /files/(.*)\\..*/
+        public: '\\1'
+      MAP
+    end
+
+    before do
+      Files::CreateService.new(
+        project,
+        user,
+        source_branch: branch_name,
+        target_branch: branch_name,
+        commit_message: "Add .gitlab/route-map.yml",
+        file_path: '.gitlab/route-map.yml',
+        file_content: route_map
+      ).execute
+
+      # Update the file so that we still have a commit that will have a file on the environment
+      Files::UpdateService.new(
+        project,
+        user,
+        source_branch: branch_name,
+        target_branch: branch_name,
+        commit_message: "Update feature",
+        file_path: file_path,
+        file_content: "# Noop"
+      ).execute
+    end
+
+    context 'and an active deployment' do
+      let(:sha) { project.commit(branch_name).sha }
+      let(:environment) { create(:environment, project: project, name: 'review/feature', external_url: 'http://feature.review.example.com') }
+      let!(:deployment) { create(:deployment, environment: environment, ref: branch_name, sha: sha) }
+
+      context 'when visiting the diff of a merge request for the branch' do
+        let(:merge_request) { create(:merge_request, :simple, source_project: project, source_branch: branch_name) }
+
+        before do
+          login_as(user)
+
+          visit diffs_namespace_project_merge_request_path(project.namespace, project, merge_request)
+
+          wait_for_ajax
+        end
+
+        it 'has a "View on env" button' do
+          within '.diffs' do
+            expect(page).to have_link('View on feature.review.example.com', href: 'http://feature.review.example.com/ruby/feature')
+          end
+        end
+      end
+
+      context 'when visiting a comparison for the branch' do
+        before do
+          login_as(user)
+
+          visit namespace_project_compare_path(project.namespace, project, from: 'master', to: branch_name)
+
+          wait_for_ajax
+        end
+
+        it 'has a "View on env" button' do
+          expect(page).to have_link('View on feature.review.example.com', href: 'http://feature.review.example.com/ruby/feature')
+        end
+      end
+
+      context 'when visiting a comparison for the commit' do
+        before do
+          login_as(user)
+
+          visit namespace_project_compare_path(project.namespace, project, from: 'master', to: sha)
+
+          wait_for_ajax
+        end
+
+        it 'has a "View on env" button' do
+          expect(page).to have_link('View on feature.review.example.com', href: 'http://feature.review.example.com/ruby/feature')
+        end
+      end
+
+      context 'when visiting a blob on the branch' do
+        before do
+          login_as(user)
+
+          visit namespace_project_blob_path(project.namespace, project, File.join(branch_name, file_path))
+
+          wait_for_ajax
+        end
+
+        it 'has a "View on env" button' do
+          expect(page).to have_link('View on feature.review.example.com', href: 'http://feature.review.example.com/ruby/feature')
+        end
+      end
+
+      context 'when visiting a blob on the commit' do
+        before do
+          login_as(user)
+
+          visit namespace_project_blob_path(project.namespace, project, File.join(sha, file_path))
+
+          wait_for_ajax
+        end
+
+        it 'has a "View on env" button' do
+          expect(page).to have_link('View on feature.review.example.com', href: 'http://feature.review.example.com/ruby/feature')
+        end
+      end
+
+      context 'when visiting the commit' do
+        before do
+          login_as(user)
+
+          visit namespace_project_commit_path(project.namespace, project, sha)
+
+          wait_for_ajax
+        end
+
+        it 'has a "View on env" button' do
+          expect(page).to have_link('View on feature.review.example.com', href: 'http://feature.review.example.com/ruby/feature')
+        end
+      end
+    end
+  end
+end