1 files changed, 75 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/pipeline/seed/pipeline_spec.rb b/spec/lib/gitlab/ci/pipeline/seed/pipeline_spec.rb
new file mode 100644
index 00000000000..1790388da03
--- /dev/null
+++ b/spec/lib/gitlab/ci/pipeline/seed/pipeline_spec.rb
@@ -0,0 +1,75 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Pipeline::Seed::Pipeline do
+  let_it_be(:project) { create(:project, :repository) }
+  let_it_be(:pipeline) { create(:ci_pipeline, project: project) }
+
+  let(:stages_attributes) do
+    [
+      {
+        name: 'build',
+        index: 0,
+        builds: [
+          { name: 'init', scheduling_type: :stage },
+          { name: 'build', scheduling_type: :stage }
+        ]
+      },
+      {
+        name: 'test',
+        index: 1,
+        builds: [
+          { name: 'rspec', scheduling_type: :stage },
+          { name: 'staging', scheduling_type: :stage, environment: 'staging' },
+          { name: 'deploy', scheduling_type: :stage, environment: 'production' }
+        ]
+      }
+    ]
+  end
+
+  subject(:seed) do
+    described_class.new(pipeline, stages_attributes)
+  end
+
+  describe '#stages' do
+    it 'returns the stage resources' do
+      stages = seed.stages
+
+      expect(stages).to all(be_a(Ci::Stage))
+      expect(stages.map(&:name)).to contain_exactly('build', 'test')
+    end
+  end
+
+  describe '#size' do
+    it 'returns the number of jobs' do
+      expect(seed.size).to eq(5)
+    end
+  end
+
+  describe '#errors' do
+    context 'when attributes are valid' do
+      it 'returns nil' do
+        expect(seed.errors).to be_nil
+      end
+    end
+
+    context 'when attributes are not valid' do
+      it 'returns the errors' do
+        stages_attributes[0][:builds] << {
+          name: 'invalid_job',
+          scheduling_type: :dag,
+          needs_attributes: [{ name: 'non-existent', artifacts: true }]
+        }
+
+        expect(seed.errors).to contain_exactly("invalid_job: needs 'non-existent'")
+      end
+    end
+  end
+
+  describe '#deployments_count' do
+    it 'counts the jobs having an environment associated' do
+      expect(seed.deployments_count).to eq(2)
+    end
+  end
+end