Merge branch 'fix-zero-sha-lookup' into 'master'

Repository#blob_at should return nil for 00000000... sha

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

See merge request !916

1 files changed, 8 insertions, 0 deletions

diff --git a/spec/models/repository_spec.rb b/spec/models/repository_spec.rb
index f41e5a97ca3..77ceb6c8adc 100644
--- a/spec/models/repository_spec.rb
+++ b/spec/models/repository_spec.rb
@@ -25,4 +25,12 @@ describe Repository do
 
     it { is_expected.to eq('c1acaa58bbcbc3eafe538cb8274ba387047b69f8') }
   end
+
+  describe :blob_at do
+    context 'blank sha' do
+      subject { repository.blob_at(Gitlab::Git::BLANK_SHA, '.gitignore') }
+
+      it { is_expected.to be_nil }
+    end
+  end
 end