bean.filesBean.toString() == "property 'filesBean'"
        bean.filesBean.modelIdentityDisplayName.displayName == "property 'filesBean'"
        bean.filesBean.prop.toString() == "file collection"

        bean.propBean.toString() == "property 'propBean'"
        bean.propBean.modelIdentityDisplayName.displayName == "property 'propBean'"
        bean.propBean.prop.toString() == "property 'propBean.prop'"

        expect:
        bean.toString() == "<display name>"
        bean.hasUsefulDisplayName()
        bean.modelIdentityDisplayName.displayName == "<display name>"

        beanWithNoName.toString().startsWith("${Bean.name}_Decorated@")
        !beanWithNoName.hasUsefulDisplayName()
        beanWithNoName.modelIdentityDisplayName == null
    }

    def "does not mixes in toString() implementation for class that defines an implementation"() {

        def bean = create(AbstractBean, "a")
        bean.a == "a"

        bean instanceof GeneratedSubclass
        bean.publicType() == AbstractBean

        bean instanceof ModelObject
        bean.modelIdentityDisplayName == null
        !bean.hasUsefulDisplayName()

        bean instanceof OwnerAware

        !(bean instanceof DynamicObjectAware)
        !(bean instanceof ExtensionAware)

    }

    def "fails when property has multiple producers attached"() {
        def owner1 = owner()
        owner1.modelIdentityDisplayName >> displayName("<owner 1>")
        def owner2 = owner()
        owner2.modelIdentityDisplayName >> displayName("<owner 2>")

        given:
        def property = propertyWithNoValue()
        property.attachProducer(owner1)

        when: