diff options
Diffstat (limited to 'spec/migrations/add_unique_constraint_to_project_features_project_id_spec.rb')
-rw-r--r-- | spec/migrations/add_unique_constraint_to_project_features_project_id_spec.rb | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/spec/migrations/add_unique_constraint_to_project_features_project_id_spec.rb b/spec/migrations/add_unique_constraint_to_project_features_project_id_spec.rb new file mode 100644 index 00000000000..bf299b70a29 --- /dev/null +++ b/spec/migrations/add_unique_constraint_to_project_features_project_id_spec.rb @@ -0,0 +1,59 @@ +require 'spec_helper' +require Rails.root.join('db', 'post_migrate', '20180511174224_add_unique_constraint_to_project_features_project_id.rb') + +describe AddUniqueConstraintToProjectFeaturesProjectId, :migration do + let(:namespaces) { table(:namespaces) } + let(:projects) { table(:projects) } + let(:features) { table(:project_features) } + let(:migration) { described_class.new } + + describe '#up' do + before do + (1..3).each do |i| + namespaces.create(id: i, name: "ns-test-#{i}", path: "ns-test-i#{i}") + projects.create!(id: i, name: "test-#{i}", path: "test-#{i}", namespace_id: i) + end + + features.create!(id: 1, project_id: 1) + features.create!(id: 2, project_id: 1) + features.create!(id: 3, project_id: 2) + features.create!(id: 4, project_id: 2) + features.create!(id: 5, project_id: 2) + features.create!(id: 6, project_id: 3) + end + + it 'creates a unique index and removes duplicates' do + expect(migration.index_exists?(:project_features, :project_id, unique: false, name: 'index_project_features_on_project_id')).to be true + + expect { migration.up }.to change { features.count }.from(6).to(3) + + expect(migration.index_exists?(:project_features, :project_id, unique: true, name: 'index_project_features_on_project_id')).to be true + expect(migration.index_exists?(:project_features, :project_id, name: 'index_project_features_on_project_id_unique')).to be false + + project_1_features = features.where(project_id: 1) + expect(project_1_features.count).to eq(1) + expect(project_1_features.first.id).to eq(2) + + project_2_features = features.where(project_id: 2) + expect(project_2_features.count).to eq(1) + expect(project_2_features.first.id).to eq(5) + + project_3_features = features.where(project_id: 3) + expect(project_3_features.count).to eq(1) + expect(project_3_features.first.id).to eq(6) + end + end + + describe '#down' do + it 'restores the original index' do + migration.up + + expect(migration.index_exists?(:project_features, :project_id, unique: true, name: 'index_project_features_on_project_id')).to be true + + migration.down + + expect(migration.index_exists?(:project_features, :project_id, unique: false, name: 'index_project_features_on_project_id')).to be true + expect(migration.index_exists?(:project_features, :project_id, name: 'index_project_features_on_project_id_old')).to be false + end + end +end |