Introduce sidekiq worker for auto merge processintroduce-auto-merge-process-worker

As we have a central domain for auto merge process today,
we should use a single worker for any auto merge process.

2 files changed, 31 insertions, 27 deletions

diff --git a/spec/workers/auto_merge_process_worker_spec.rb b/spec/workers/auto_merge_process_worker_spec.rb
new file mode 100644
index 00000000000..616727ce5ca
--- /dev/null
+++ b/spec/workers/auto_merge_process_worker_spec.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe AutoMergeProcessWorker do
+  describe '#perform' do
+    subject { described_class.new.perform(merge_request&.id) }
+
+    context 'when merge request is found' do
+      let(:merge_request) { create(:merge_request) }
+
+      it 'executes AutoMergeService' do
+        expect_next_instance_of(AutoMergeService) do |auto_merge|
+          expect(auto_merge).to receive(:process)
+        end
+
+        subject
+      end
+    end
+
+    context 'when merge request is not found' do
+      let(:merge_request) { nil }
+
+      it 'does not execute AutoMergeService' do
+        expect(AutoMergeService).not_to receive(:new)
+
+        subject
+      end
+    end
+  end
+end
diff --git a/spec/workers/pipeline_success_worker_spec.rb b/spec/workers/pipeline_success_worker_spec.rb
deleted file mode 100644
index b511edfa620..00000000000
--- a/spec/workers/pipeline_success_worker_spec.rb
+++ /dev/null
@@ -1,27 +0,0 @@
-# frozen_string_literal: true
-
-require 'spec_helper'
-
-describe PipelineSuccessWorker do
-  describe '#perform' do
-    context 'when pipeline exists' do
-      let(:pipeline) { create(:ci_pipeline, status: 'success', ref: merge_request.source_branch, project: merge_request.source_project) }
-      let(:merge_request) { create(:merge_request) }
-
-      it 'performs "merge when pipeline succeeds"' do
-        expect_next_instance_of(AutoMergeService) do |auto_merge|
-          expect(auto_merge).to receive(:process)
-        end
-
-        described_class.new.perform(pipeline.id)
-      end
-    end
-
-    context 'when pipeline does not exist' do
-      it 'does not raise exception' do
-        expect { described_class.new.perform(123) }
-          .not_to raise_error
-      end
-    end
-  end
-end