//  5. A requirement with just !KEY requires that the KEY not exist.
func Parse(selector string, opts ...field.PathOption) (Selector, error) {
	parsedSelector, err := parse(selector, field.ToPath(opts...))
	if err == nil {
		return parsedSelector, nil
	}
	return nil, err
}

// parse parses the string representation of the selector and returns the internalSelector struct.

        def selectedComponentResult = Mock(ComponentSelectionContext)

        when:
        chooser.selectNewestMatchingComponent([c, d, a, b], selectedComponentResult, versionSelectorScheme.parseSelector("1.+"), versionSelectorScheme.parseSelector("1.3"), consumerAttributes)

        then:
        _ * componentSelectionRules.rules >> []
        1 * selectedComponentResult.getContentFilter() >> null

}

func TestDeterministicParse(t *testing.T) {
	s1, err := ParseSelector("x=a,a=x")
	s2, err2 := ParseSelector("a=x,x=a")
	if err != nil || err2 != nil {
		t.Errorf("Unexpected parse error")
	}
	if s1.String() != s2.String() {
		t.Errorf("Non-deterministic parse")
	}
}

func expectMatch(t *testing.T, selector string, ls Set) {
	lq, err := ParseSelector(selector)
	if err != nil {

func ParseSelectorOrDie(s string) Selector {
	selector, err := ParseSelector(s)
	if err != nil {
		panic(err)
	}
	return selector
}

// ParseSelector takes a string representing a selector and returns an
// object suitable for matching, or an error.
func ParseSelector(selector string) (Selector, error) {
	return parseSelector(selector,
		func(lhs, rhs string) (newLhs, newRhs string, err error) {

            String rightRequiredVersion = right.getRequiredVersion();
            boolean leftDynamic = versionSelectorScheme.parseSelector(leftRequiredVersion).isDynamic();
            boolean rightDynamic = versionSelectorScheme.parseSelector(rightRequiredVersion).isDynamic();

            // Order dynamic selectors after static selectors
            if (leftDynamic && !rightDynamic) {

	defer cleanupRT()
	g := NewWithT(t)

	var runSkipped bool
	runFn := func(ctx *suiteContext) int {
		runSkipped = ctx.skipped
		return 0
	}

	sel, err := label.ParseSelector("-customsetup")
	g.Expect(err).To(BeNil())
	settings := resource.DefaultSettings()
	settings.Selector = sel

	s := newTestSuite("tid", runFn, defaultExitFn, settingsFn(settings))
	s.Label(label.CustomSetup)

        ModuleDependencyMetadata moduleDependencyMetadata = toDependencyMetadata(selector);
        VersionSelector acceptor = mavenVersionSelectorScheme.parseSelector(selector.getVersion());
        LocallyAvailableExternalResource localResource = parseContext.getMetaDataArtifact(moduleDependencyMetadata, acceptor, ArtifactType.MAVEN_POM);

            configurations.all {
                resolutionStrategy {
                    dependencySubstitution.all {
                        def selector = VERSION_SCHEME.parseSelector("[2.1, 2.2]")
                        if (it.requested.group.startsWith("org") && it.requested.module.startsWith("foo") && selector.accept(it.requested.version)) {

            }

            String versionSelectorString = externalDependency.getVersion();
            VersionSelector versionSelector = versionSelectorScheme.parseSelector(versionSelectorString);
            if (versionSelector instanceof LatestVersionSelector) {
                LatestVersionSelector latestVersionSelector = (LatestVersionSelector) versionSelector;

    }

    private String convertVersionFromMavenSyntax(String version) {
        VersionSelector versionSelector = mavenVersionSelectorScheme.parseSelector(version);
        return defaultVersionSelectorScheme.renderSelector(versionSelector);
    }

    /**
     * Determines extension of dependency.
     *
     * @param type Type
     * @return Extension