if (extraChecksums && !(testFile.name in missingExtraChecksums)) {
            def sha256File = sha256File(testFile)
            sha256File.assertIsFile()
            assert HashCode.fromString(sha256File.text) == Hashing.sha256().hashFile(testFile)
            def sha512File = sha512File(testFile)
            sha512File.assertIsFile()

    TestFile sha1File(TestFile file) {
        hashFile(file, Hashing.sha1())
    }

    TestFile getSha256File(TestFile file) {
        getHashFile(file, Hashing.sha256())
    }

    TestFile sha256File(TestFile file) {
        hashFile(file, Hashing.sha256())
    }

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

    TestFile sha512File(TestFile file) {