1 files changed, 14 insertions, 0 deletions
diff --git a/spec/lib/gitlab/encoding_helper_spec.rb b/spec/lib/gitlab/encoding_helper_spec.rb
index f6e5c55240f..87ec2698fc1 100644
--- a/spec/lib/gitlab/encoding_helper_spec.rb
+++ b/spec/lib/gitlab/encoding_helper_spec.rb
@@ -145,4 +145,18 @@ describe Gitlab::EncodingHelper do
       end
     end
   end
+
+  describe 'encode_binary' do
+    [
+      [nil, ""],
+      ["", ""],
+      ["  ", "  "],
+      %w(a1 a1),
+      ["编码", "\xE7\xBC\x96\xE7\xA0\x81".b]
+    ].each do |input, result|
+      it "encodes #{input.inspect} to #{result.inspect}" do
+        expect(ext_class.encode_binary(input)).to eq(result)
+      end
+    end
+  end
 end