TestFile child = parent.createDir("testchild")
        child.file("reference.txt") << "test file"

        child.mode = mode
        and:
        buildFile << """
            task copy(type: Copy) {
                from "testparent"
                into ("build/tmp")
            }
            """
        when:
        run "copy"
        then:
        file("build/tmp/testchild").mode == mode
        where:

    try {
      InternetDomainName.from("com").parent();
      fail("'com' should throw ISE on .parent() call");
    } catch (IllegalStateException expected) {
    }
  }

  public void testChild() {
    InternetDomainName domain = InternetDomainName.from("foo.com");

    assertEquals("www.foo.com", domain.child("www").toString());

    try {
      domain.child("www.");

        mojo.setGoal(c.getChild("goal").getValue());

        mojo.setImplementation(c.getChild("implementation").getValue());

        PlexusConfiguration langConfig = c.getChild("language");

        if (langConfig != null) {
            mojo.setLanguage(langConfig.getValue());
        }

        PlexusConfiguration configuratorConfig = c.getChild("configurator");

    @Test
    void "caches compiled build script"() {
        createLargeBuildScript()
        testBuild("hello1", "Hello 1")
        TestFile.Snapshot classFileSnapshot = classFile.snapshot()

        testBuild("hello2", "Hello 2")
        classFile.assertHasNotChangedSince(classFileSnapshot)

        modifyLargeBuildScript()
        testBuild("newTask", "I am new")
        classFile.assertHasChangedSince(classFileSnapshot)
    }

        XmlNode p0 = getNthChild(mergeResult, "property", 0);
        assertEquals("LHS-ONLY", p0.getChild("name").getValue());
        assertEquals("left", p0.getChild("name").getInputLocation());
        assertEquals("LHS", p0.getChild("value").getValue());
        assertEquals("left", p0.getChild("value").getInputLocation());

        XmlNode p1 = getNthChild(mergeResult, "property", 1);
        assertEquals(

                            String groupId = root.getChild("groupId").getValue();
                            String artifactId = root.getChild("artifactId").getValue();
                            String goalPrefix = root.getChild("goalPrefix").getValue();
                            String name = root.getChild("name").getValue();

            state = State.CollectValue;
            if (parent.firstChild == null) {
                parent.firstChild = this;
                parent.lastChild = this;
            } else {
                parent.lastChild.nextSibling = this;
                parent.lastChild = this;
            }
        }

        Separator getFirstChildSeparator() {
            if (firstChild == null) {

                            headers.put(
                                    property.getChild("name").getValue(),
                                    property.getChild("value").getValue());
                        }
                    }
                }

                PlexusConfiguration connectTimeoutXml = config.getChild("connectTimeout", false);
                if (connectTimeoutXml != null) {

                            String groupId = root.getChild("groupId").getValue();
                            String artifactId = root.getChild("artifactId").getValue();
                            String goalPrefix = root.getChild("goalPrefix").getValue();
                            String name = root.getChild("name").getValue();

        }

        extensionDescriptor.setExportedPackages(parseStrings(dom.getChild("exportedPackages")));

        extensionDescriptor.setExportedArtifacts(parseStrings(dom.getChild("exportedArtifacts")));

        return extensionDescriptor;
    }

    private List<String> parseStrings(XmlNode dom) {
        List<String> strings = null;