TestFile getSha512File(TestFile file) {
        getHashFile(file, Hashing.sha512())
    }

    TestFile sha512File(TestFile file) {
        hashFile(file, Hashing.sha512())
    }

    TestFile getMd5File(TestFile file) {
        getHashFile(file, Hashing.md5())
    }

    TestFile md5File(TestFile file) {
        hashFile(file, Hashing.md5())
    }

        }
        return new ReleasedGradleDistribution(version, previousVersionDir.file(version));
    }

    protected static TestFile file(String propertyName, String defaultPath) {
        TestFile testFile = optionalFile(propertyName);
        if (testFile != null) {
            return testFile;
        }
        if (defaultPath == null) {

                }
            }
        """
    }

    TestFile getCacheDir() {
        cacheDir
    }

    TestFile gcFile() {
        cacheDir.file("gc.properties")
    }

    List<TestFile> listCacheTempFiles() {
        cacheDir.listFiles().findAll { it.name.endsWith(BuildCacheTempFileStore.PARTIAL_FILE_SUFFIX) }.sort()
    }

    List<TestFile> listCacheFailedFiles() {

                "public class DepClass { }"
        );
        builder.buildJar(testFile("repo/test-1.3.jar"));

        testFile("buildSrc/build.gradle").writelns(
                "repositories { flatDir { dirs '../repo' } }",
                "dependencies { implementation name: 'test', version: '1.3' }");
        testFile("buildSrc/src/main/java/BuildClass.java").writelns("public class BuildClass extends org.gradle.test.DepClass { }");

import org.gradle.test.fixtures.file.TestFile

class M2Installation implements Action<GradleExecuter> {
    private final TestDirectoryProvider temporaryFolder
    private boolean initialized = false
    private TestFile userHomeDir
    private TestFile userM2Directory
    private TestFile userSettingsFile
    private TestFile globalMavenDirectory
    private TestFile globalSettingsFile

        INIT,
        BUILDSRC_PROJECT,
        BUILDSRC_SETTINGS,
    }

    final TestFile projectDir
    final TestFile scriptFile
    final List<String> buildArguments
    final String expectedOutputBeforeChange = 'Hello!'
    final String expectedOutputAfterChange = 'Hi!'

    ScriptChangeFixture(TestFile projectDir, TestFile scriptFile, List<String> buildArguments) {
        this.projectDir = projectDir

        private final ScriptLanguage scriptLanguage

        private final List<TestFile> excludedFiles = new ArrayList<>()

        private final List<TestFile> excludedFilesCopies = new ArrayList<>()

        private final List<TestFile> includedFiles = new ArrayList<>()

        private final List<TestFile> includedFilesCopies = new ArrayList<>()

    }

    @Override
    TestFile getSha1File() {
        backingModule.getSha1File(file)
    }

    @Override
    TestFile getMd5File() {
        backingModule.getMd5File(file)
    }

    @Override
    protected TestFile getSha256File() {
        backingModule.getSha256File(file)
    }

    @Override
    protected TestFile getSha512File() {
        backingModule.getSha512File(file)

    </target>
</project>
"""
        testFile('build.gradle') << """
ant.importBuild('project1/build.xml')
ant.importBuild('project2/build.xml')
task ant(dependsOn: [target1, target2])
"""
        TestFile target1File = testFile('project1/build/target1.txt')
        TestFile target2File = testFile('project2/build/target2.txt')
        target1File.assertDoesNotExist()
        target2File.assertDoesNotExist()

        testFile('other1.gradle') << ''' apply { from 'other2.gradle' } '''
        testFile('other2.gradle') << ''' task doStuff '''

        inTestDirectory().withTasks('doStuff').run()
    }

    @Test
    void canFetchScriptViaHttp() {
        executer.requireOwnGradleUserHomeDir() //we need an empty external resource cache