MavenModule variant(String variant, Map<String, String> attributes) {
        createVariant(variant, attributes)
        return this
    }

    @Override
    MavenModule variant(String variant, Map<String, String> attributes, @DelegatesTo(value = VariantMetadataSpec, strategy = Closure.DELEGATE_FIRST) Closure<?> variantConfiguration) {
        def v = createVariant(variant, attributes)
        variantConfiguration.delegate = v

        def artifact2 = Mock(PublishArtifact)
        artifact2.file >> artifactFile
        artifact2.classifier >> ""
        artifact2.extension >> "jar"
        def variant1 = createVariant([artifact1], [], 'api')
        def variant2 = createVariant([artifact2], [], 'runtime')
        def component = Stub(SoftwareComponentInternal)
        component.usages >> [variant1, variant2]
        def mavenArtifact = Mock(MavenArtifact)

        return this
    }

    @Override
    IvyFileModule variant(String variant, Map<String, String> attributes) {
        createVariant(variant, attributes)
        return this
    }

    private VariantMetadataSpec createVariant(String variant, Map<String, String> attributes) {
        def variantMetadata = new VariantMetadataSpec(variant, attributes)
        variants.add(variantMetadata)