1 files changed, 72 insertions, 0 deletions
diff --git a/spec/workers/design_management/new_version_worker_spec.rb b/spec/workers/design_management/new_version_worker_spec.rb
new file mode 100644
index 00000000000..ef7cd8de108
--- /dev/null
+++ b/spec/workers/design_management/new_version_worker_spec.rb
@@ -0,0 +1,72 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe DesignManagement::NewVersionWorker do
+  describe '#perform' do
+    let(:worker) { described_class.new }
+
+    context 'the id is wrong or out-of-date' do
+      let(:version_id) { -1 }
+
+      it 'does not create system notes' do
+        expect(SystemNoteService).not_to receive(:design_version_added)
+
+        worker.perform(version_id)
+      end
+
+      it 'does not invoke GenerateImageVersionsService' do
+        expect(DesignManagement::GenerateImageVersionsService).not_to receive(:new)
+
+        worker.perform(version_id)
+      end
+
+      it 'logs the reason for this failure' do
+        expect(Sidekiq.logger).to receive(:warn)
+          .with(an_instance_of(ActiveRecord::RecordNotFound))
+
+        worker.perform(version_id)
+      end
+    end
+
+    context 'the version id is valid' do
+      let_it_be(:version) { create(:design_version, :with_lfs_file, designs_count: 2) }
+
+      it 'creates a system note' do
+        expect { worker.perform(version.id) }.to change { Note.system.count }.by(1)
+      end
+
+      it 'invokes GenerateImageVersionsService' do
+        expect_next_instance_of(DesignManagement::GenerateImageVersionsService) do |service|
+          expect(service).to receive(:execute)
+        end
+
+        worker.perform(version.id)
+      end
+
+      it 'does not log anything' do
+        expect(Sidekiq.logger).not_to receive(:warn)
+
+        worker.perform(version.id)
+      end
+    end
+
+    context 'the version includes multiple types of action' do
+      let_it_be(:version) do
+        create(:design_version, :with_lfs_file,
+               created_designs: create_list(:design, 1, :with_lfs_file),
+               modified_designs: create_list(:design, 1))
+      end
+
+      it 'creates two system notes' do
+        expect { worker.perform(version.id) }.to change { Note.system.count }.by(2)
+      end
+
+      it 'calls design_version_added' do
+        expect(SystemNoteService).to receive(:design_version_added).with(version)
+
+        worker.perform(version.id)
+      end
+    end
+  end
+end