1 files changed, 78 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/pipeline/chain/seed_block_spec.rb b/spec/lib/gitlab/ci/pipeline/chain/seed_block_spec.rb
new file mode 100644
index 00000000000..85c8e20767f
--- /dev/null
+++ b/spec/lib/gitlab/ci/pipeline/chain/seed_block_spec.rb
@@ -0,0 +1,78 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Gitlab::Ci::Pipeline::Chain::SeedBlock do
+  let(:project) { create(:project, :repository) }
+  let(:user) { create(:user, developer_projects: [project]) }
+  let(:seeds_block) { }
+
+  let(:command) do
+    Gitlab::Ci::Pipeline::Chain::Command.new(
+      project: project,
+      current_user: user,
+      origin_ref: 'master',
+      seeds_block: seeds_block)
+  end
+
+  let(:pipeline) { build(:ci_pipeline, project: project) }
+
+  describe '#perform!' do
+    before do
+      stub_ci_pipeline_yaml_file(YAML.dump(config))
+    end
+
+    subject(:run_chain) do
+      [
+        Gitlab::Ci::Pipeline::Chain::Config::Content.new(pipeline, command),
+        Gitlab::Ci::Pipeline::Chain::Config::Process.new(pipeline, command)
+      ].map(&:perform!)
+
+      described_class.new(pipeline, command).perform!
+    end
+
+    let(:config) do
+      { rspec: { script: 'rake' } }
+    end
+
+    context 'when there is not seeds_block' do
+      it 'does nothing' do
+        expect { run_chain }.not_to raise_error
+      end
+    end
+
+    context 'when there is seeds_block' do
+      let(:seeds_block) do
+        ->(pipeline) { pipeline.variables.build(key: 'VAR', value: '123') }
+      end
+
+      it 'executes the block' do
+        run_chain
+
+        expect(pipeline.variables.size).to eq(1)
+      end
+
+      context 'when FF ci_seed_block_run_before_workflow_rules is disabled' do
+        before do
+          stub_feature_flags(ci_seed_block_run_before_workflow_rules: false)
+        end
+
+        it 'does not execute the block' do
+          run_chain
+
+          expect(pipeline.variables.size).to eq(0)
+        end
+      end
+    end
+
+    context 'when the seeds_block tries to save the pipelie' do
+      let(:seeds_block) do
+        ->(pipeline) { pipeline.save! }
+      end
+
+      it 'raises error' do
+        expect { run_chain }.to raise_error('Pipeline cannot be persisted by `seeds_block`')
+      end
+    end
+  end
+end