registry.registerDefaultToolChain("test2", TestNativeToolChain)
        registry.registerDefaultToolChain("test3", TestNativeToolChain)
        registry.addDefaultToolChains()

        then:
        registry.asList() == [defaultToolChain1, defaultToolChain2, defaultToolChain3]
    }

    def "can add default tool chain when some configured"() {

    /**
     * Registers a default ToolChain, which may later be added to the registry via {@link #addDefaultToolChains()}.
     */
    void registerDefaultToolChain(String name, Class<? extends NativeToolChain> type);

    /**
     * Adds default tool chains to the registry.
     */
    void addDefaultToolChains();

    /**

            it.create(getToolchainName(), getToolchainClass())
        }
    }

    void addDefaultToolchain() {
        registry.mutate(NativeToolChainRegistryInternal) {
            it.addDefaultToolChains()
        }
    }

    def "tool chain is extended"() {
        when:
        register()

        then:
        with(toolchain) {
            it instanceof ExtensionAware

    }

    @Override
    public void registerDefaultToolChain(String name, Class<? extends NativeToolChain> type) {
        registeredDefaults.put(name, type);
    }

    @Override
    public void addDefaultToolChains() {
        for (String name : registeredDefaults.keySet()) {
            create(name, registeredDefaults.get(name));
        }
    }

    @Override

        }

        @Finalize
        public void createDefaultToolChain(NativeToolChainRegistryInternal toolChains) {
            if (toolChains.isEmpty()) {
                toolChains.addDefaultToolChains();
            }
        }

        @Finalize
        public void createDefaultBuildTypes(BuildTypeContainer buildTypes) {
            if (buildTypes.isEmpty()) {