@Test
public void shouldReturnDefaultErrorMessageForInvalidServerException() throws Exception {

  when(context.getString(R.string.exception_invalid_server)).thenReturn(
      "Invalid Server Default Error Message");
  InvalidServerException invalidServerException = new InvalidServerException();

  String errorMessage = ErrorMessageFactory.create(context, invalidServerException);

  verify(context, times(1)).getString(R.string.exception_invalid_server);
  assertThat(errorMessage, notNullValue());
  assertThat(errorMessage, is("Invalid Server Default Error Message"));
}