1 files changed, 14 insertions, 1 deletions
diff --git a/spec/models/merge_request_diff_file_spec.rb b/spec/models/merge_request_diff_file_spec.rb
index 25971f63338..5a48438adab 100644
--- a/spec/models/merge_request_diff_file_spec.rb
+++ b/spec/models/merge_request_diff_file_spec.rb
@@ -4,7 +4,12 @@ require 'spec_helper'
 
 RSpec.describe MergeRequestDiffFile do
   it_behaves_like 'a BulkInsertSafe model', MergeRequestDiffFile do
-    let(:valid_items_for_bulk_insertion) { build_list(:merge_request_diff_file, 10) }
+    let(:valid_items_for_bulk_insertion) do
+      build_list(:merge_request_diff_file, 10) do |mr_diff_file|
+        mr_diff_file.merge_request_diff = create(:merge_request_diff)
+      end
+    end
+
     let(:invalid_items_for_bulk_insertion) { [] } # class does not have any validations defined
   end
 
@@ -25,6 +30,14 @@ RSpec.describe MergeRequestDiffFile do
         it 'unpacks from base 64' do
           expect(subject.diff).to eq(unpacked)
         end
+
+        context 'invalid base64' do
+          let(:packed) { '---/dev/null' }
+
+          it 'returns the raw diff' do
+            expect(subject.diff).to eq(packed)
+          end
+        end
       end
 
       context 'when the diff is not marked as binary' do