Add specs for build stop extended detailed status

lib/gitlab/ci/status/build/stop.rb

@@ -13,10 +13,6 @@ module Gitlab
             'stop'
           end
 
-          def icon
-            'icon_status_skipped'
-          end
-
           def has_action?
             can?(user, :update_build, subject)
           end

spec/lib/gitlab/ci/status/build/stop_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Ci::Status::Build::Stop do
+  let(:core_status) { double('core status') }
+  let(:user) { double('user') }
+
+  subject do
+    described_class.new(core_status)
+  end
+
+  describe '#text' do
+    it { expect(subject.text).to eq 'stop' }
+  end
+
+  describe '#label' do
+    it { expect(subject.label).to eq 'stop' }
+  end
+
+  describe '#icon' do
+    it 'does not override core status icon' do
+      expect(core_status).to receive(:icon)
+
+      subject.icon
+    end
+  end
+
+  describe '.matches?' do
+    context 'build is playable' do
+      context 'when build stops an environment' do
+        let(:build) do
+          create(:ci_build, :playable, :teardown_environment)
+        end
+
+        it 'is a correct match' do
+          expect(described_class.matches?(build, user))
+            .to be true
+        end
+      end
+
+      context 'when build does not stop an environment' do
+        let(:build) { create(:ci_build, :playable) }
+
+        it 'does not match' do
+          expect(described_class.matches?(build, user))
+            .to be false
+        end
+      end
+    end
+
+    context 'when build is not playable' do
+      let(:build) { create(:ci_build) }
+
+      it 'does not match' do
+        expect(described_class.matches?(build, user))
+          .to be false
+      end
+    end
+  end
+end