1 files changed, 28 insertions, 0 deletions
diff --git a/spec/serializers/diffs_entity_spec.rb b/spec/serializers/diffs_entity_spec.rb
new file mode 100644
index 00000000000..19a843b0cb7
--- /dev/null
+++ b/spec/serializers/diffs_entity_spec.rb
@@ -0,0 +1,28 @@
+require 'spec_helper'
+
+describe DiffsEntity do
+  let(:user) { create(:user) }
+  let(:project) { create(:project, :repository) }
+  let(:request) { EntityRequest.new(project: project, current_user: user) }
+  let(:merge_request) { create(:merge_request_with_diffs, target_project: project, source_project: project) }
+  let(:merge_request_diffs) { merge_request.merge_request_diffs }
+
+  let(:entity) do
+    described_class.new(merge_request_diffs.first.diffs, request: request, merge_request: merge_request, merge_request_diffs: merge_request_diffs)
+  end
+
+  context 'as json' do
+    subject { entity.as_json }
+
+    it 'contains needed attributes' do
+      expect(subject).to include(
+        :real_size, :size, :branch_name,
+        :target_branch_name, :commit, :merge_request_diff,
+        :start_version, :latest_diff, :latest_version_path,
+        :added_lines, :removed_lines, :render_overflow_warning,
+        :email_patch_path, :plain_diff_path, :diff_files,
+        :merge_request_diffs
+      )
+    end
+  end
+end