### Question:
WXFileUtils { public static boolean saveFile(String path, byte[] content, Context context) { if (TextUtils.isEmpty(path) || content == null || context == null) { return false; } FileOutputStream outStream = null; try { outStream = new FileOutputStream(path); outStream.write(content); return true; } catch (Exception e) { WXLogUtils.e("WXFileUtils saveFile: " + WXLogUtils.getStackTrace(e)); } finally { if (outStream != null) { try { outStream.close(); } catch (IOException e) { e.printStackTrace(); } } } return false; }  static String loadFileOrAsset(String path, Context context); static String loadAsset(String path, Context context); static byte[] readBytesFromAssets(String path, Context context); static boolean saveFile(String path, byte[] content, Context context); static String md5(String  template); static String md5(byte[] bts); static String base64Md5(String  template); static String base64Md5(byte[] bts); static void extractSo(String apkFile, String path); static void copyFile(File oldFile, File newFile);  }### Answer:
@Test public void testSaveFile() throws Exception { WXFileUtils.saveFile("build/test","test".getBytes(),RuntimeEnvironment.application); }