Nullify pool_repository when a project leaves

Previously the nullification wasn't done, as the only caller would later
destroy the model all together. In
https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/9070 this change
was made. This commit is basically a backport before that MR is merged.

1 files changed, 11 insertions, 0 deletions

diff --git a/spec/models/project_spec.rb b/spec/models/project_spec.rb
index d1ab0bdba29..b48a9048a42 100644
--- a/spec/models/project_spec.rb
+++ b/spec/models/project_spec.rb
@@ -4387,6 +4387,17 @@ describe Project do
     end
   end
 
+  describe '#leave_pool_repository' do
+    let(:pool) { create(:pool_repository) }
+    let(:project) { create(:project, :repository, pool_repository: pool) }
+
+    it 'removes the membership' do
+      project.leave_pool_repository
+
+      expect(pool.member_projects.reload).not_to include(project)
+    end
+  end
+
   def rugged_config
     rugged_repo(project.repository).config
   end