protected
    fun gradleExecuterFor(arguments: Array<out String>, rootDir: File = projectRoot) =
        inDirectory(rootDir).withArguments(*arguments)

    protected
    inline fun withOwnGradleUserHomeDir(reason: String, block: () -> Unit) {
        executer.requireOwnGradleUserHomeDir(reason)
        try {
            block()
        } finally {

        expectCacheEntriesWritten(0, true)
    }

    private
    fun expectCacheEntriesWritten(expectedEntryCount: Int, scriptCachingDisabled: Boolean) {
        withOwnGradleUserHomeDir("verifying local build cache content") {
            withSettings(randomScriptContent())
            withBuildScriptIn(".", randomScriptContent())

            build("-q", "build").output,
            containsString("it works!")
        )
    }

    @Test
    @LeaksFileHandles
    fun `can apply Groovy script from url`() {
        withOwnGradleUserHomeDir("we need an empty external resource cache") {
            val server = HttpServer()
            server.start()

            val scriptFile = withFile(
                "script.gradle",