// Hip circumference can be null if gender is male
        public void HipCircumferenceAndGenderTypeIsMaleTests()
        {
            var userAccessorMock = new Mock <IUserAccessor>();

            userAccessorMock.Setup(x => x.GetCurrentUsersGender()).Returns(GenderType.Male);
            CreateOrEditBodyMeasurementRequestValidator validator = new CreateOrEditBodyMeasurementRequestValidator(userAccessorMock.Object);

            validator.ShouldNotHaveValidationErrorFor(x => x.HipCircumference, (double?)null);
            validator.ShouldNotHaveValidationErrorFor(x => x.HipCircumference, (double?)0);
            validator.ShouldNotHaveValidationErrorFor(x => x.HipCircumference, (double?)10.4);
        }