public void Decimal_ShouldBeUnique()
{
// Arrange
const int min = 1;
const int max = 50;
const int fix = 6;
// Act
var result1 = _sut.Decimal(min, max, fix);
var result2 = _sut.Decimal(min, max, fix);
// Assert
Assert.IsNotNull(result1);
Assert.IsNotNull(result2);
result1.ShouldNotBe(result2);
}