1 files changed, 53 insertions, 0 deletions
diff --git a/spec/services/tags/create_service_spec.rb b/spec/services/tags/create_service_spec.rb
new file mode 100644
index 00000000000..5478b8c9ec0
--- /dev/null
+++ b/spec/services/tags/create_service_spec.rb
@@ -0,0 +1,53 @@
+require 'spec_helper'
+
+describe Tags::CreateService, services: true do
+  let(:project) { create(:project) }
+  let(:repository) { project.repository }
+  let(:user) { create(:user) }
+  let(:service) { described_class.new(project, user) }
+
+  describe '#execute' do
+    it 'creates the tag and returns success' do
+      response = service.execute('v42.42.42', 'master', 'Foo')
+
+      expect(response[:status]).to eq(:success)
+      expect(response[:tag]).to be_a Gitlab::Git::Tag
+      expect(response[:tag].name).to eq('v42.42.42')
+    end
+
+    context 'when target is invalid' do
+      it 'returns an error' do
+        response = service.execute('v1.1.0', 'foo', 'Foo')
+
+        expect(response).to eq(status: :error,
+                               message: 'Target foo is invalid')
+      end
+    end
+
+    context 'when tag already exists' do
+      it 'returns an error' do
+        expect(repository).to receive(:add_tag).
+          with(user, 'v1.1.0', 'master', 'Foo').
+          and_raise(Rugged::TagError)
+
+        response = service.execute('v1.1.0', 'master', 'Foo')
+
+        expect(response).to eq(status: :error,
+                               message: 'Tag v1.1.0 already exists')
+      end
+    end
+
+    context 'when pre-receive hook fails' do
+      it 'returns an error' do
+        expect(repository).to receive(:add_tag).
+          with(user, 'v1.1.0', 'master', 'Foo').
+          and_raise(GitHooksService::PreReceiveError, 'something went wrong')
+
+        response = service.execute('v1.1.0', 'master', 'Foo')
+
+        expect(response).to eq(status: :error,
+                               message: 'something went wrong')
+      end
+    end
+  end
+end