1 files changed, 60 insertions, 0 deletions
diff --git a/spec/services/ci/create_pipeline_service/pre_post_stages_spec.rb b/spec/services/ci/create_pipeline_service/pre_post_stages_spec.rb
new file mode 100644
index 00000000000..db9b89f090f
--- /dev/null
+++ b/spec/services/ci/create_pipeline_service/pre_post_stages_spec.rb
@@ -0,0 +1,60 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+describe Ci::CreatePipelineService do
+  context '.pre/.post stages' do
+    let_it_be(:user)    { create(:admin) }
+    let_it_be(:project) { create(:project, :repository, creator: user) }
+
+    let(:source)   { :push }
+    let(:service)  { described_class.new(project, user, { ref: ref }) }
+    let(:pipeline) { service.execute(source) }
+
+    let(:config) do
+      <<~YAML
+        validate:
+          stage: .pre
+          script: echo Hello World
+
+        build:
+          stage: build
+          rules:
+            - if: $CI_COMMIT_BRANCH == "master"
+          script: echo Hello World
+
+        notify:
+          stage: .post
+          script: echo Hello World
+      YAML
+    end
+
+    before do
+      stub_ci_pipeline_yaml_file(config)
+    end
+
+    context 'when pipeline contains a build except .pre/.post' do
+      let(:ref) { 'refs/heads/master' }
+
+      it 'creates a pipeline' do
+        expect(pipeline).to be_persisted
+        expect(pipeline.stages.map(&:name)).to contain_exactly(
+          *%w(.pre build .post))
+        expect(pipeline.builds.map(&:name)).to contain_exactly(
+          *%w(validate build notify))
+      end
+    end
+
+    context 'when pipeline does not contain any other build except .pre/.post' do
+      let(:ref) { 'refs/heads/feature' }
+
+      it 'does not create a pipeline' do
+        expect(pipeline).not_to be_persisted
+
+        # we can validate a list of stages, as they are assigned
+        # but not persisted
+        expect(pipeline.stages.map(&:name)).to contain_exactly(
+          *%w(.pre .post))
+      end
+    end
+  end
+end