IvyDependencyMetadata ivyDependency = (IvyDependencyMetadata) dependency;
                    IvyDependencyDescriptor newDescriptor = transformed.get(ivyDependency.getDependencyDescriptor());
                    transformedConfigurationDependencies.add(ivyDependency.withDescriptor(newDescriptor));
                } else {
                    transformedConfigurationDependencies.add((ModuleDependencyMetadata) dependency);

import spock.lang.Specification

class IvyDescriptorFileGeneratorTest extends Specification {
    @Rule
    TestNameTestDirectoryProvider testDirectoryProvider = new TestNameTestDirectoryProvider(getClass())
    def descriptor = newDescriptor()

    def "writes correct prologue and schema declarations"() {
        expect:
        ivyFile.text.startsWith(TextUtil.toPlatformLineSeparators(
"""<?xml version="1.0" encoding="UTF-8"?>
<ivy-module version="2.0">