### Question:
BaseStringReader implements StringReader { @Override public void release() { IoUtil.release(byteArrayReader); } BaseStringReader(ByteArrayReader byteArrayReader); @Override boolean isReadable(); @Override String get(long pos); @Override void release();  }### Answer:
@Test public void release() { mockStatic(IoUtil.class); new BaseStringReader(byteArrayReader).release(); verifyStatic(IoUtil.class); IoUtil.release(byteArrayReader); }