@Test
  public void testWrap_noWrapperRegistered_throws() throws Exception {
    PrimitiveSet<Aead> aeadSet = createAeadPrimitiveSet();
    Registry.reset();
    GeneralSecurityException e =
        assertThrows(GeneralSecurityException.class, () -> Registry.wrap(aeadSet));
    assertExceptionContains(e, "No wrapper found");
    assertExceptionContains(e, "Aead");
  }
Returns the type URL that identifies the key type of keys managed by this KeyManager.
java_src/src/test/java/com/google/crypto/tink/RegistryTest.java