Add tests

app/models/ci/pipeline.rb

app/models/project.rb

app/models/repository.rb

lib/gitlab/route_map.rb

spec/features/projects/blobs/view_on_env_spec.rb

spec/features/projects/commit/cherry_pick_spec.rb

spec/features/projects/commit/view_on_env_spec.rb

spec/features/projects/compare/view_on_env_spec.rb

spec/features/projects/compare_spec.rb

spec/features/projects/merge_requests/view_on_env_spec.rb

spec/helpers/commits_helper_spec.rb

spec/lib/gitlab/route_map_spec.rb

spec/models/environment_spec.rb

spec/models/merge_request_spec.rb

spec/models/project_spec.rb

spec/models/repository_spec.rb