Fix tests and add has_environment?

app/models/ci/build.rb

@@ -131,12 +131,16 @@ def expanded_environment_name
       ExpandVariables.expand(environment, variables) if environment
     end
+    def has_environment?
+      self.environment.present?
+    end
+
     def starts_environment?
-      self.environment.present? && self.environment_action == 'start'
+      has_environment? && self.environment_action == 'start'
     end
     def stops_environment?
-      self.environment.present? && self.environment_action == 'stop'
+      has_environment? && self.environment_action == 'stop'
     end
     def environment_action
@@ -148,7 +152,7 @@ def outdated_deployment?
     end
     def last_deployment
-      deployments.order(id: :desc).last
+      deployments.last
     end
     def depends_on_builds

app/views/projects/builds/show.html.haml

@@ -26,7 +26,7 @@
             = link_to namespace_project_runners_path(@build.project.namespace, @build.project) do
               Runners page
-    - if @build.environment.present? && @build.starts_environment?
+    - if @build.starts_environment?
       .prepend-top-default
         .environment-information
           - if @build.outdated_deployment?

app/workers/build_success_worker.rb

@@ -4,7 +4,7 @@ class BuildSuccessWorker
   def perform(build_id)
     Ci::Build.find_by(id: build_id).try do |build|
-      create_deployment(build) if build.environment.present?
+      create_deployment(build) if build.has_environment?
     end
   end

spec/models/build_spec.rb

@@ -1053,6 +1053,26 @@ def create_mr(build, pipeline, factory: :merge_request, created_at: Time.now)
     end
   end
+  describe '#has_environment?' do
+    subject { build.has_environment? }
+
+    context 'when environment is defined' do
+      before do
+        build.update(environment: 'review')
+      end
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'when environment is not defined' do
+      before do
+        build.update(environment: nil)
+      end
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
   describe '#starts_environment?' do
     subject { build.starts_environment? }
@@ -1061,7 +1081,17 @@ def create_mr(build, pipeline, factory: :merge_request, created_at: Time.now)
         build.update(environment: 'review')
       end
-      it { is_expected.to be_truthy }
+      context 'no action is defined' do
+        it { is_expected.to be_truthy }
+      end
+
+      context 'and start action is defined' do
+        before do
+          build.update(options: { environment: { action: 'start' } } )
+        end
+
+        it { is_expected.to be_truthy }
+      end
     end
     context 'when environment is not defined' do
@@ -1106,11 +1136,13 @@ def create_mr(build, pipeline, factory: :merge_request, created_at: Time.now)
   describe '#last_deployment' do
     subject { build.last_deployment }
-    context 'when multiple deployments is created returns latest one' do
+    context 'when multiple deployments are created' do
       let!(:deployment1) { create(:deployment, deployable: build) }
       let!(:deployment2) { create(:deployment, deployable: build) }
-      it { is_expected.to eq(deployment2) }
+      it 'returns the latest one' do
+        is_expected.to eq(deployment2)
+      end
     end
   end

spec/models/ci/build_spec.rb

@@ -4,14 +4,12 @@
   let(:build) { create(:ci_build) }
   let(:test_trace) { 'This is a test' }
-  describe 'ss' do
   it { is_expected.to belong_to(:runner) }
   it { is_expected.to belong_to(:trigger_request) }
   it { is_expected.to belong_to(:erased_by) }
   it { is_expected.to have_many(:deployments) }
-  end
-  
+
   describe '#trace' do
     it 'obfuscates project runners token' do
       allow(build).to receive(:raw_trace).and_return("Test: #{build.project.runners_token}")