verifyTaskIds()
        verifyTaskDetails(RegisterTaskBuildOperationType, withPath(':', ':foo')).children.empty
        def realize = verifyTaskDetails(RealizeTaskBuildOperationType, withPath(':', ':foo'))
        realize.children.empty
        realize.details.eager == false
    }

    def "op during realize are child ops"() {
        given:
        register('foo')
        register('bar')
        buildFile << """

        }

        then:
        def list = registry.realize(collectionPath, collectionType)
        list == checkable(['bar'])
    }

    def "can remove all elements"() {
        when:
        mutate {
            add 'foo'
            add 'bar'
            clear()
        }

        then:
        def list = registry.realize(collectionPath, collectionType)
        list == checkable([])
    }

            remove(1)
        }

        then:
        def list = registry.realize(collectionPath, collectionType)
        list == checkable(['foo', 'baz'])
    }

    def "can add using index"() {
        when:
        mutate {
            add 'foo'
            add(0, 'bar')
        }

        then:
        def list = registry.realize(collectionPath, collectionType)
        list == ['bar', 'foo']

    }

        registry.realize("parent") // TODO - should not need this: parent mutations should be applied before mutating element

        expect:
        registry.realize("parent.bar", Bean).value == "prefix: bar"
        registry.realize("parent.foo", String) == "ignore me"
        registry.realize("parent.bar.child1", Bean).value == "prefix: baz"
        registry.realize("parent.bar.child2", String) == "ignore me too"

    }

    void realize() {
        registry.realizeNode(path)
    }

    void selfClose() {
        registry.atState(path, ModelNode.State.SelfClosed)
    }

    ModelMap<T> realizeAsModelMap() {
        registry.realize(path, modelMapType)
    }

    T realizeChild(String name) {
        registry.realize(path.child(name), itemType)
    }

        registry.registerWithInitializer("foo", NamedThingInterface, nodeInitializerRegistry)

        then:
        registry.realize("foo", NamedThingInterface).name == "foo"

        when:
        registry.registerWithInitializer("bar", NamedThingInterface, nodeInitializerRegistry)

        then:
        registry.realize("bar", NamedThingInterface).name == "bar"
    }


    @Managed
    static abstract class NonNamedThing {

        then:
        def set = registry.realize(collectionPath, collectionType)
        def e1 = set.find { it.name == '1' }
        def e2 = set.find { it.name == '1' }
        e1.is(e2)
    }

    def "can query set size"() {
        when:
        mutate {
            create { name = '1' }
            create { name = '2' }
        }

        then:
        !registry.realize(collectionPath, collectionType).isEmpty()

                if (collector.getType() == null || type.isAssignableFrom(collector.getType())) {
                    copied.add(collector);
                }
            }
            realize(copied);
        }
    }

    private void realize(Iterable<Collectors.TypedCollector<T>> collectors) {
        for (Collectors.TypedCollector<T> collector : collectors) {
            pending.remove(collector);

                void setUnmanagedReadWriteProperty($type type)
            }

        """

        then:
        realize(clazz)

        where:
        type << ['List<Date>', 'Set<Date>']

    }

    private void failWhenRealized(Class type, String expected) {
        try {
            realize(type)
            throw new AssertionError("node realisation of type ${type.name} should have failed with a cause of:\n$expected\n")

        target << "apply plugin: '${getPluginName()}'\n"
    }

    def "does not realize all possible tasks"() {
        // TODO: This isn't done yet, we still realize many tasks
        // Eventually, this should only realize "help"

        Assume.assumeFalse(pluginName in [
            'xctest', // Almost, still realizes compileTestSwift

            'visual-studio',
            'xcode',