1 files changed, 56 insertions, 0 deletions
diff --git a/spec/workers/new_merge_request_worker_spec.rb b/spec/workers/new_merge_request_worker_spec.rb
new file mode 100644
index 00000000000..9e0cbde45b1
--- /dev/null
+++ b/spec/workers/new_merge_request_worker_spec.rb
@@ -0,0 +1,56 @@
+require 'spec_helper'
+
+describe NewMergeRequestWorker do
+  describe '#perform' do
+    let(:worker) { described_class.new }
+
+    context 'when a merge request not found' do
+      it 'does not call Services' do
+        expect(EventCreateService).not_to receive(:new)
+        expect(NotificationService).not_to receive(:new)
+
+        worker.perform(99, create(:user).id)
+      end
+
+      it 'logs an error' do
+        expect(Rails.logger).to receive(:error).with('NewMergeRequestWorker: couldn\'t find MergeRequest with ID=99, skipping job')
+
+        worker.perform(99, create(:user).id)
+      end
+    end
+
+    context 'when a user not found' do
+      it 'does not call Services' do
+        expect(EventCreateService).not_to receive(:new)
+        expect(NotificationService).not_to receive(:new)
+
+        worker.perform(create(:merge_request).id, 99)
+      end
+
+      it 'logs an error' do
+        expect(Rails.logger).to receive(:error).with('NewMergeRequestWorker: couldn\'t find User with ID=99, skipping job')
+
+        worker.perform(create(:merge_request).id, 99)
+      end
+    end
+
+    context 'when everything is ok' do
+      let(:project) { create(:project, :public) }
+      let(:mentioned) { create(:user) }
+      let(:user) { create(:user) }
+      let(:merge_request) do
+        create(:merge_request, source_project: project, description: "mr for #{mentioned.to_reference}")
+      end
+
+      it 'creates a new event record' do
+        expect { worker.perform(merge_request.id, user.id) }.to change { Event.count }.from(0).to(1)
+      end
+
+      it 'creates a notification for the assignee' do
+        expect(Notify).to receive(:new_merge_request_email).with(mentioned.id, merge_request.id).and_return(double(deliver_later: true))
+
+        worker.perform(merge_request.id, user.id)
+      end
+    end
+  end
+end