public void BankAccount_Controller_Update_ShouldBeOk()
{
//Arrange
var isUpdated = true;
_mockBankAccountService.Setup(bas => bas.Update(_mockBankAccount.Object)).Returns(isUpdated);
//Action
IHttpActionResult callback = _bankAccountController.Update(_mockBankAccount.Object);
//Assert
var httpResponse = callback.Should().BeOfType <OkNegotiatedContentResult <bool> >().Subject;
httpResponse.Content.Should().BeTrue();
_mockBankAccountService.Verify(bas => bas.Update(_mockBankAccount.Object), Times.Once);
}