class Parent; end class Child < Parent; end RSpec.describe Child do fit { expect(described_class).to be < Parent } # or fit { expect(described_class.superclass).to eq(Parent) } end
class Parent; end class Child < Parent; end RSpec.describe Child do fit { expect(described_class).to be < Parent } # or fit { expect(described_class.superclass).to eq(Parent) } end