def parts = [Pattern.quote(temporaryFolder.getTestDirectory().absolutePath) + ".*", "build", ".transforms", "[\\w-]+", "transformed"]
        return outputDirs(from, to, parts.join(quotedFileSeparator), stream)
    }

    Set<TestFile> gradleUserHomeOutputDirs(String from, String to, Closure<String> stream = { output }) {
        def parts = [Pattern.quote(cacheDir.absolutePath), "[\\w-]+", "transformed"]

        failure.assertHasCause("Failed to transform a.jar to match attributes {artifactType=size}")
        failure.assertHasCause("Execution failed for ToNullTransform: ${file("a.jar").absolutePath}.")
        failure.assertHasCause("path may not be null or empty string. path='null'")

        where:
        method << ['dir', 'file']
    }