describe 'Ridgepole::Client#diff -> migrate' do
  context 'when there is an index of orphans' do
    let(:actual_dsl) { '' }
    let(:expected_dsl) {
      <<-RUBY
        create_table "clubs", force: true do |t|
          t.string "name", default: "", null: false
        end

        add_index "clubs", ["name"], name: "idx_name", unique: true, using: :btree

        create_table "departments", primary_key: "dept_no", force: true do |t|
          t.string "dept_name", limit: 40, null: false
        end

        add_index "departments", ["dept_name"], name: "dept_name", unique: true, using: :btree

        create_table "dept_emp", id: false, force: true do |t|
          t.integer "emp_no",              null: false
          t.string  "dept_no",   limit: 4, null: false
          t.date    "from_date",           null: false
          t.date    "to_date",             null: false
        end

        add_index "dept_emp", ["dept_no"], name: "dept_no", using: :btree
        add_index "dept_emp", ["emp_no"], name: "emp_no", using: :btree

        create_table "dept_manager", id: false, force: true do |t|
          t.string  "dept_no",   limit: 4, null: false
          t.integer "emp_no",              null: false
          t.date    "from_date",           null: false
          t.date    "to_date",             null: false
        end

        add_index "Xdept_manager", ["dept_no"], name: "dept_no", using: :btree
        add_index "Xdept_manager", ["emp_no"], name: "emp_no", using: :btree

        create_table "employee_clubs", force: true do |t|
          t.integer "emp_no",  unsigned: true, null: false
          t.integer "club_id", unsigned: true, null: false
        end

        add_index "employee_clubs", ["emp_no", "club_id"], name: "idx_emp_no_club_id", using: :btree

        create_table "employees", primary_key: "emp_no", force: true do |t|
          t.date   "birth_date",            null: false
          t.string "first_name", limit: 14, null: false
          t.string "last_name",  limit: 16, null: false
          t.string "gender",     limit: 1,  null: false
          t.date   "hire_date",             null: false
        end

        create_table "salaries", id: false, force: true do |t|
          t.integer "emp_no",    null: false
          t.integer "salary",    null: false
          t.date    "from_date", null: false
          t.date    "to_date",   null: false
        end

        add_index "salaries", ["emp_no"], name: "emp_no", using: :btree

        create_table "titles", id: false, force: true do |t|
          t.integer "emp_no",               null: false
          t.string  "title",     limit: 50, null: false
          t.date    "from_date",            null: false
          t.date    "to_date"
        end

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

    subject { client }

    it {
      expect {
        subject.diff(expected_dsl)
      }.to raise_error('Table `Xdept_manager` to create the index is not defined: dept_no,emp_no')
    }
  end
end