public void When_Number1_Is_Smaller_Than_Number2_Then_IsSmallerThan_Should_Return_True( double doubleNumber1, double doubleNumber2) { // Arrange var number1 = _calculator.FromDouble(doubleNumber1); var number2 = _calculator.FromDouble(doubleNumber2); // Act var comparison = _calculator.IsSmallerThan(number1, number2); // Assert comparison.Should().BeTrue(); }