final File outputFile = File.createTempFile("command_generator", ".out");
        try {
            assertTrue(outputFile.exists());
            generator.setCommandList(Collections.singletonList("invalid_command_for_test"));
            assertTrue(generator.generate("test_id", outputFile));
        } finally {
            outputFile.delete();
        }
    }

    public void test_generate_outputFile_null() throws Exception {