public void AddPowerTest()
{
//Arrange
powerRepositoryMock.Setup(x => x.Insert(It.IsAny <Power>()))
.Verifiable("should insert into repository!!!");
unitOfWorkMock.Setup(x => x.Save())
.Verifiable("should save after insert");
var powerDto = new PowerDTO();
//Act
var addedPower = powerService.AddPower(powerDto);
//Assert
Assert.IsNotNull(addedPower);
unitOfWorkMock.Verify();
powerRepositoryMock.Verify();
}