if (result.exitCode != 0) {
            throw new RuntimeException("Could not execute $file. Error: ${result.error}, Output: ${result.out}")
        }
        return result
    }

    ExecOutput executeFailure(List args, List env) {
        def result = execute(args, env)
        if (result.exitCode == 0) {
            throw new RuntimeException("Unexpected success, executing $file. Error: ${result.error}, Output: ${result.out}")

        return new TestFileHelper(this).executeSuccess(Arrays.asList(args), null);
    }

    public ExecOutput execWithFailure(List<?> args, List<?> env) {
        return new TestFileHelper(this).executeFailure(args, env);
    }

    public ExecOutput execute(List<?> args, List<?> env) {
        return new TestFileHelper(this).executeSuccess(args, env);
    }

    /**