RSpec.describe ROM::Relation, "#invert" do
  subject(:relation) { relations[:users] }

  include_context "users and tasks"

  with_adapters do
    it "delegates to dataset and returns a new relation" do
      expect(relation.where(name: "Jane").invert.to_a).to eql([{ id: 2, name: "Joe" }])
    end
  end
end
