Move ci_environments_status to a model

GET :namespace/merge_requests/:id/ci_environments_status complexity
already reached a limit for a direct serialization from an hash
computed at within the controller function.

Here we introduce a virtual model EnvironmentStatus and its serializer.

1 files changed, 33 insertions, 0 deletions

diff --git a/spec/models/environment_status_spec.rb b/spec/models/environment_status_spec.rb
new file mode 100644
index 00000000000..0fbf949d38e
--- /dev/null
+++ b/spec/models/environment_status_spec.rb
@@ -0,0 +1,33 @@
+require 'spec_helper'
+
+describe EnvironmentStatus do
+  let(:deployment)    { create(:deployment, :review_app) }
+  let(:environment)   { deployment.environment}
+  let(:project)       { deployment.project }
+  let(:merge_request) { create(:merge_request, :deployed_review_app, deployment: deployment) }
+
+  subject(:environment_status) { described_class.new(environment, merge_request) }
+
+  it { is_expected.to delegate_method(:id).to(:environment) }
+  it { is_expected.to delegate_method(:name).to(:environment) }
+  it { is_expected.to delegate_method(:project).to(:environment) }
+  it { is_expected.to delegate_method(:deployed_at).to(:deployment).as(:created_at) }
+
+  describe '#project' do
+    subject { environment_status.project }
+
+    it { is_expected.to eq(project) }
+  end
+
+  describe '#merge_request' do
+    subject { environment_status.merge_request }
+
+    it { is_expected.to eq(merge_request) }
+  end
+
+  describe '#deployment' do
+    subject { environment_status.deployment }
+
+    it { is_expected.to eq(deployment) }
+  end
+end