Use a MR with commits.

84fc2943 · Rubén Dávila · 049e2f22 · 84fc2943
--- a/spec/services/merge_requests/merge_when_build_succeeds_service_spec.rb
+++ b/spec/services/merge_requests/merge_when_build_succeeds_service_spec.rb
@@ -6,7 +6,7 @@

  let(:mr_merge_if_green_enabled) do
    create(:merge_request, merge_when_build_succeeds: true, merge_user: user,
-                           source_branch: "source_branch", target_branch: project.default_branch,
+                           source_branch: "master", target_branch: 'feature',
                           source_project: project, target_project: project, state: "opened")
  end