1 files changed, 63 insertions, 0 deletions
diff --git a/spec/workers/merge_requests/close_issue_worker_spec.rb b/spec/workers/merge_requests/close_issue_worker_spec.rb
new file mode 100644
index 00000000000..5e6bdc2a43e
--- /dev/null
+++ b/spec/workers/merge_requests/close_issue_worker_spec.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe MergeRequests::CloseIssueWorker do
+  subject(:worker) { described_class.new }
+
+  describe '#perform' do
+    let!(:user) { create(:user) }
+    let!(:project) { create(:project) }
+    let!(:issue) { create(:issue, project: project) }
+    let!(:merge_request) { create(:merge_request, source_project: project) }
+
+    it 'calls the close issue service' do
+      expect_next_instance_of(Issues::CloseService, project: project, current_user: user) do |service|
+        expect(service).to receive(:execute).with(issue, commit: merge_request)
+      end
+
+      subject.perform(project.id, user.id, issue.id, merge_request.id)
+    end
+
+    shared_examples 'when object does not exist' do
+      it 'does not call the close issue service' do
+        expect(Issues::CloseService).not_to receive(:new)
+
+        expect { subject.perform(project.id, user.id, issue.id, merge_request.id) }
+          .not_to raise_exception
+      end
+    end
+
+    context 'when the project does not exist' do
+      before do
+        project.destroy!
+      end
+
+      it_behaves_like 'when object does not exist'
+    end
+
+    context 'when the user does not exist' do
+      before do
+        user.destroy!
+      end
+
+      it_behaves_like 'when object does not exist'
+    end
+
+    context 'when the issue does not exist' do
+      before do
+        issue.destroy!
+      end
+
+      it_behaves_like 'when object does not exist'
+    end
+
+    context 'when the merge request does not exist' do
+      before do
+        merge_request.destroy!
+      end
+
+      it_behaves_like 'when object does not exist'
+    end
+  end
+end