Merge branch 'issue_14306' into 'master'

Return an empty Array when there aren't lines to parse.

Fixes #14306

See merge request !3243

1 files changed, 5 insertions, 0 deletions

diff --git a/spec/lib/gitlab/diff/parser_spec.rb b/spec/lib/gitlab/diff/parser_spec.rb
index f576c39284e..cdff063a9ed 100644
--- a/spec/lib/gitlab/diff/parser_spec.rb
+++ b/spec/lib/gitlab/diff/parser_spec.rb
@@ -90,4 +90,9 @@ eos
       end
     end
   end
+
+  context 'when lines is empty' do
+    it { expect(parser.parse([])).to eq([]) }
+    it { expect(parser.parse(nil)).to eq([]) }
+  end
 end