1 files changed, 53 insertions, 0 deletions
diff --git a/spec/services/dependency_proxy/find_or_create_blob_service_spec.rb b/spec/services/dependency_proxy/find_or_create_blob_service_spec.rb
new file mode 100644
index 00000000000..4ba53d49d38
--- /dev/null
+++ b/spec/services/dependency_proxy/find_or_create_blob_service_spec.rb
@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+require 'spec_helper'
+
+RSpec.describe DependencyProxy::FindOrCreateBlobService do
+  include DependencyProxyHelpers
+
+  let(:blob)  { create(:dependency_proxy_blob) }
+  let(:group) { blob.group }
+  let(:image) { 'alpine' }
+  let(:tag)   { '3.9' }
+  let(:token) { Digest::SHA256.hexdigest('123') }
+  let(:blob_sha) { '40bd001563085fc35165329ea1ff5c5ecbdbbeef' }
+
+  subject { described_class.new(group, image, token, blob_sha).execute }
+
+  before do
+    stub_registry_auth(image, token)
+  end
+
+  context 'no cache' do
+    before do
+      stub_blob_download(image, blob_sha)
+    end
+
+    it 'downloads blob from remote registry if there is no cached one' do
+      expect(subject[:status]).to eq(:success)
+      expect(subject[:blob]).to be_a(DependencyProxy::Blob)
+      expect(subject[:blob]).to be_persisted
+    end
+  end
+
+  context 'cached blob' do
+    let(:blob_sha) { blob.file_name.sub('.gz', '') }
+
+    it 'uses cached blob instead of downloading one' do
+      expect(subject[:status]).to eq(:success)
+      expect(subject[:blob]).to be_a(DependencyProxy::Blob)
+      expect(subject[:blob]).to eq(blob)
+    end
+  end
+
+  context 'no such blob exists remotely' do
+    before do
+      stub_blob_download(image, blob_sha, 404)
+    end
+
+    it 'returns error message and http status' do
+      expect(subject[:status]).to eq(:error)
+      expect(subject[:message]).to eq('Failed to download the blob')
+      expect(subject[:http_status]).to eq(404)
+    end
+  end
+end