@Test
public void matchesCanary_shouldReturnFalseIfInputDataCouldNotBeProccessed_AndC_DecryptReturns_0x40() throws Exception {

  when(encryptionProvider.decrypt(any(), any(), any())).thenThrow(new IllegalBlockSizeException("returns 0x40"));
  subject = new ExternalKeyProxy(encryptionKeyMetadata, encryptionProvider);
  assertFalse(subject.matchesCanary(encryptionKeyCanary));
}