public async Task ReturnBadRequestOnUpdateWhenModelNotValid()
{
// Arrange
_controller.ModelState.AddModelError("someFakeError", "fakeError message");
var answers = new Faker <AnswersUpdateModel>()
.RuleFor(s => s.Id, v => ++ v.IndexVariable)
.RuleFor(s => s.UserId, v => v.IndexVariable)
.RuleFor(s => s.OptionId, v => v.IndexVariable)
.Generate();
var expected = new Faker <AnswersBaseModel>()
.RuleFor(s => s.Id, v => ++ v.IndexVariable)
.RuleFor(s => s.UserId, v => v.IndexVariable)
.RuleFor(s => s.OptionId, v => v.IndexVariable)
.Generate();
_mockService.Setup(x => x.Update(It.IsAny <AnswersUpdateModel>()))
.ReturnsAsync(expected)
.Verifiable();
// Act
var result = await _controller.Put(answers.Id, answers);
// Assert
result.Should().BeOfType <BadRequestResult>();
}