unless postgresql?
describe 'Ridgepole::Client#diff -> migrate' do
  context 'when change index (unique: false)' do
    let(:actual_dsl) {
      <<-RUBY
        create_table "salaries"#{unsigned_if_enabled}, force: :cascade do |t|
          t.integer "emp_no",    limit: 4, null: false
          t.integer "salary",    limit: 4, null: false
          t.date    "from_date",           null: false
          t.date    "to_date",             null: false
        end

        add_index "salaries", ["emp_no", "id"], name: "emp_no", using: :btree
      RUBY
    }

    let(:expected_dsl) {
      <<-RUBY
        create_table "salaries"#{unsigned_if_enabled}, force: :cascade do |t|
          t.integer "emp_no",    limit: 4, null: false
          t.integer "salary",    limit: 4, null: false
          t.date    "from_date",           null: false
          t.date    "to_date",             null: false
        end

        add_index "salaries", ["emp_no", "id"], unique: false, name: "emp_no", unique: false, using: :btree
      RUBY
    }

    before { subject.diff(actual_dsl).migrate }
    subject { client }

    it {
      delta = subject.diff(expected_dsl)
      expect(delta.differ?).to be_falsy
    }
  end

  context 'when change index (unique: true)' do
    let(:actual_dsl) {
      <<-RUBY
        create_table "salaries"#{unsigned_if_enabled}, force: :cascade do |t|
          t.integer "emp_no",    limit: 4, null: false
          t.integer "salary",    limit: 4, null: false
          t.date    "from_date",           null: false
          t.date    "to_date",             null: false
        end

        add_index "salaries", ["emp_no", "id"], name: "emp_no", using: :btree
      RUBY
    }

    let(:expected_dsl) {
      <<-RUBY
        create_table "salaries"#{unsigned_if_enabled}, force: :cascade do |t|
          t.integer "emp_no",    limit: 4, null: false
          t.integer "salary",    limit: 4, null: false
          t.date    "from_date",           null: false
          t.date    "to_date",             null: false
        end

        add_index "salaries", ["emp_no", "id"], name: "emp_no", unique: true, using: :btree
      RUBY
    }

    before { subject.diff(actual_dsl).migrate }
    subject { client }

    it {
      delta = subject.diff(expected_dsl)
      expect(delta.differ?).to be_truthy
      expect(subject.dump.delete_empty_lines).to eq actual_dsl.strip_heredoc.strip.delete_empty_lines
      delta.migrate
      expect(subject.dump.delete_empty_lines).to eq expected_dsl.strip_heredoc.strip.delete_empty_lines
    }
  end
end
end