Add support for DAG

This implements the support for `needs:` keyword
as part of GitLab CI. That makes some of the jobs
to be run out of order.

1 files changed, 26 insertions, 0 deletions

diff --git a/spec/workers/build_process_worker_spec.rb b/spec/workers/build_process_worker_spec.rb
new file mode 100644
index 00000000000..cceca40717c
--- /dev/null
+++ b/spec/workers/build_process_worker_spec.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe BuildProcessWorker do
+  describe '#perform' do
+    context 'when build exists' do
+      let(:pipeline) { create(:ci_pipeline) }
+      let(:build) { create(:ci_build, pipeline: pipeline) }
+
+      it 'processes build' do
+        expect_any_instance_of(Ci::Pipeline).to receive(:process!)
+          .with(build.name)
+
+        described_class.new.perform(build.id)
+      end
+    end
+
+    context 'when build does not exist' do
+      it 'does not raise exception' do
+        expect { described_class.new.perform(123) }
+          .not_to raise_error
+      end
+    end
+  end
+end