require 'spec_helper' require Rails.root.join('db', 'migrate', '20180508100222_add_not_null_constraint_to_project_mirror_data_foreign_key.rb') describe AddNotNullConstraintToProjectMirrorDataForeignKey, :migration do let(:namespaces) { table(:namespaces) } let(:projects) { table(:projects) } let(:import_state) { table(:project_mirror_data) } before do import_state.create!(id: 1, project_id: nil, status: :started) end it 'removes every import state without an associated project_id' do expect do subject.up end.to change { import_state.count }.from(1).to(0) end end