def module1 = DefaultModuleIdentifier.newId("group", "projectA")
        def module2 = DefaultModuleIdentifier.newId("org.group", "projectA")

        expect:
        pattern.toModulePath(module1).path == 'prefix/group/projectA'
        pattern.toModulePath(module2).path == 'prefix/org/group/projectA'
    }

    def "can build module version path"() {
        def pattern = new M2ResourcePattern("prefix/" + MavenPattern.M2_PATTERN)

        List<String> versions = new ArrayList<>();
        boolean hasResult = false;
        for (ResourcePattern pattern : patterns) {
            ExternalResourceName metadataLocation = pattern.toModulePath(module).resolve("maven-metadata.xml");

            if (searched.add(metadataLocation)) {
                result.attempted(metadataLocation);
                try {

     */
    ExternalResourceName toVersionListPattern(ModuleIdentifier module, IvyArtifactName artifact);

    /**
     * Returns the path for the given module.
     */
    ExternalResourceName toModulePath(ModuleIdentifier moduleIdentifier);

    /**
     * Returns the path for the given component.
     */
    ExternalResourceName toModuleVersionPath(ModuleComponentIdentifier componentIdentifier);

    /**

        Map<String, String> attributes = toAttributes(module, artifact);
        return getBase().getRoot().resolve(substituteTokens(getBase().getPath(), attributes));
    }

    @Override
    public ExternalResourceName toModulePath(ModuleIdentifier module) {
        throw new UnsupportedOperationException();
    }

    @Override
    public ExternalResourceName toModuleVersionPath(ModuleComponentIdentifier componentIdentifier) {

        Map<String, String> attributes = toAttributes(module, artifact);
        return getBase().getRoot().resolve(substituteTokens(getBase().getPath(), attributes));
    }

    @Override
    public ExternalResourceName toModulePath(ModuleIdentifier module) {
        String pattern = getBase().getPath();
        if (!pattern.endsWith(MavenPattern.M2_PATTERN)) {
            throw new UnsupportedOperationException("Cannot locate module for non-maven layout.");