1 files changed, 38 insertions, 0 deletions
diff --git a/spec/services/ci/create_pipeline_service/tags_spec.rb b/spec/services/ci/create_pipeline_service/tags_spec.rb
new file mode 100644
index 00000000000..335d35010c8
--- /dev/null
+++ b/spec/services/ci/create_pipeline_service/tags_spec.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe Ci::CreatePipelineService do
+  describe 'tags:' do
+    let_it_be(:project) { create(:project, :repository) }
+    let_it_be(:user)    { project.owner }
+
+    let(:ref) { 'refs/heads/master' }
+    let(:source) { :push }
+    let(:service) { described_class.new(project, user, { ref: ref }) }
+    let(:pipeline) { service.execute(source).payload }
+
+    before do
+      stub_ci_pipeline_yaml_file(config)
+    end
+
+    context 'with valid config' do
+      let(:config) { YAML.dump({ test: { script: 'ls', tags: %w[tag1 tag2] } }) }
+
+      it 'creates a pipeline', :aggregate_failures do
+        expect(pipeline).to be_created_successfully
+        expect(pipeline.builds.first.tag_list).to match_array(%w[tag1 tag2])
+      end
+    end
+
+    context 'with too many tags' do
+      let(:tags) { Array.new(50) {|i| "tag-#{i}" } }
+      let(:config) { YAML.dump({ test: { script: 'ls', tags: tags } }) }
+
+      it 'creates a pipeline without builds', :aggregate_failures do
+        expect(pipeline).not_to be_created_successfully
+        expect(pipeline.builds).to be_empty
+        expect(pipeline.yaml_errors).to eq("jobs:test:tags config must be less than the limit of #{Gitlab::Ci::Config::Entry::Tags::TAGS_LIMIT} tags")
+      end
+    end
+  end
+end