def formatsSignatureForWildcardWithUpperBound() {
        type.setUpperBounds(new TypeMetaData('OtherType'))

        expect:
        type.signature == '? extends OtherType'
    }

    def formatsSignatureForWildcardWithLowerBound() {
        type.setLowerBounds(new TypeMetaData('OtherType'))

        expect:
        type.signature == '? super OtherType'
    }

    def visitsSignature() {