public async Task Create_When_Filter_Already_Exist_Then_Operation_Details_False()
{
//arrange
var expectedResult = new OperationDetails(false, $"You already have a filter with name \"{filterDto.FilterName}\"", "");
unitOfWork
.Setup(u => u.Filters.SingleOrDefault(It.Is <Func <Filter, bool> >(i => i(filter))))
.Returns(filter);
//act
var actualResult = await underTest.Create(filterDto);
//assert
Assert.AreEqual(expectedResult.Succeeded, actualResult.Succeeded);
}
