### Question:
AndroidContextUtil { @TargetApi(21) public String getNoBackupFilesDirectoryPath() { return Build.VERSION.SDK_INT >= 21 && this.context != null ? absPath(this.context.getNoBackupFilesDir()) : ""; } AndroidContextUtil();  AndroidContextUtil(ContextWrapper contextWrapper); void setupProperties(LoggerContext context); String getMountedExternalStorageDirectoryPath(); @TargetApi(8) @SuppressWarnings("deprecation") String getExternalStorageDirectoryPath(); @TargetApi(8) String getExternalFilesDirectoryPath(); String getCacheDirectoryPath(); String getExternalCacheDirectoryPath(); String getPackageName(); String getFilesDirectoryPath(); @TargetApi(21) String getNoBackupFilesDirectoryPath(); String getDatabaseDirectoryPath(); String getDatabasePath(String databaseName); String getVersionCode(); String getVersionName();  }### Answer:
@Test public void getNoBackupFilesDirectoryPathIsNotEmpty() { assertThat(contextUtil.getNoBackupFilesDirectoryPath(), endsWith("/no_backup")); }