@Test
  public void testEncryptDecryptString() throws Exception {
    Assume.assumeFalse(TinkFips.useOnlyFips());

    StreamingTestUtil.testEncryptDecryptString(createAesCtrHmacStreaming());
  }
Encrypts and decrypts a with non-ASCII characters using CharsetEncoders and CharsetDecoders.
java_src/src/test/java/com/google/crypto/tink/subtle/AesCtrHmacStreamingTest.java