public void VeryLongNumbersCanBeCreatedFromAString(string s)
{
var i = new VeryLong(s);
Assert.Equal(s, i);
Assert.Equal(s, i.ToString());
}
public void VeryLongNumbersCanBeConvertedToAString(int n, string expected)
{
var i = new VeryLong(n);
Assert.Equal(expected, i);
Assert.Equal(expected, i.ToString());
}
public void RemoveLeadingZeros_When0000_Then0()
{
VeryLong number = new VeryLong("0000");
number.RemoveLeadingZeros();
Assert.AreEqual("0", number.ToString());
}
public void RemoveLeadingZeros_When23_Then23()
{
VeryLong number = new VeryLong("23");
number.RemoveLeadingZeros();
Assert.AreEqual("23", number.ToString());
}
public void Add_WhenSumCalculatedOf_511111_77777555555_ThenSumIs_77778066666()
{
VeryLong number1 = new VeryLong("511111");
VeryLong number2 = new VeryLong("77777555555");
VeryLong sum = number1.Add(number2);
Assert.AreEqual("77778066666", sum.ToString());
}
public void Multiply_When_7_x_81_Then_567()
{
VeryLong number1 = new VeryLong("7");
VeryLong number2 = new VeryLong("81");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("567", sum.ToString());
}
public void Add_WhenSumCalculatedOf_100_977_ThenSumIs_1077()
{
VeryLong number1 = new VeryLong("100");
VeryLong number2 = new VeryLong("977");
VeryLong sum = number1.Add(number2);
Assert.AreEqual("1077", sum.ToString());
}
public void Multiply_When_9_x_99_Then_891()
{
VeryLong number1 = new VeryLong("9");
VeryLong number2 = new VeryLong("99");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("891", sum.ToString());
}
public void Add_WhenDecimalIs1And9_ThenSumIsCorrect()
{
VeryLong number1 = new VeryLong("2.1111");
VeryLong number2 = new VeryLong("1.9");
VeryLong sum = number1.Add(number2);
Assert.AreEqual("4.0111", sum.ToString());
}
public void Add_WhenSumCalculatedOf_1_17_ThenSumIs_18()
{
VeryLong number1 = new VeryLong("1");
VeryLong number2 = new VeryLong("17");
VeryLong sum = number1.Add(number2);
Assert.AreEqual("18", sum.ToString());
}
public void Multiply_When_0_x_56789_Then_0()
{
VeryLong number1 = new VeryLong("0");
VeryLong number2 = new VeryLong("56789");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("0", sum.ToString());
}
public void Add_WhenTwoSumandContainsDot_ThenSumHasMaxDecimalPlaces()
{
VeryLong number1 = new VeryLong("1.3");
VeryLong number2 = new VeryLong("2.1111");
VeryLong sum = number1.Add(number2);
Assert.AreEqual("3.4111", sum.ToString());
}
public void Multiply_When_10_x_2_Then_20()
{
VeryLong number1 = new VeryLong("10");
VeryLong number2 = new VeryLong("2");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("20", sum.ToString());
}
public void Multiply_When_1234_x_56789_Then_70077626()
{
VeryLong number1 = new VeryLong("1234");
VeryLong number2 = new VeryLong("56789");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("70077626", sum.ToString());
}
public void Add_WhenSumCalculatedOf_111111111111111111111111111111_1988888888888888888888888888888_ThenSumIs_1077()
{
VeryLong number1 = new VeryLong("111111111111111111111111111111");
VeryLong number2 = new VeryLong("1988888888888888888888888888888");
VeryLong sum = number1.Add(number2);
Assert.AreEqual("2099999999999999999999999999999", sum.ToString());
}
public void Multiply_When_0_1_x_0_9_Then_0_09()
{
VeryLong number1 = new VeryLong("0.1");
VeryLong number2 = new VeryLong("0.9");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("0.09", sum.ToString());
}
public void Multiply_When_7_x_12_Then_84()
{
VeryLong number1 = new VeryLong("7");
VeryLong number2 = new VeryLong("12");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("84", sum.ToString());
}
public void Multiply_When_1_x_1_Then_1()
{
VeryLong number1 = new VeryLong("1");
VeryLong number2 = new VeryLong("1");
VeryLong sum = number1.Multiply(number2);
Assert.AreEqual("1", sum.ToString());
}
public void DivideBy_When_1_d_3_And10Digits_Then_0point3333333333()
{
int numberOfDigits = 10;
VeryLong number1 = new VeryLong("1");
VeryLong number2 = new VeryLong("3");
VeryLong quotient = number1.DivideBy(number2, numberOfDigits);
Assert.AreEqual("0.3333333333", quotient.ToString());
}
public void DivideBy_When_1_d_4_And10Digits_Then_0point25()
{
int numberOfDigits = 10;
VeryLong number1 = new VeryLong(1.ToString());
VeryLong number2 = new VeryLong(4.ToString());
VeryLong quotient = number1.DivideBy(number2, numberOfDigits);
Assert.AreEqual("0.2500000000", quotient.ToString());
}
public void DivideBy_When_1_24_d_0_2_And10Digits_Then_0point062()
{
int numberOfDigits = 10;
VeryLong number1 = new VeryLong("1.24");
VeryLong number2 = new VeryLong("0.2");
VeryLong quotient = number1.DivideBy(number2, numberOfDigits);
Assert.AreEqual("6.2000000000", quotient.ToString());
}
public void DivideBy_When_1_00000_d_1_5000_And10Digits_Then_0point02500()
{
int numberOfDigits = 10;
VeryLong number1 = new VeryLong("1.00000");
VeryLong number2 = new VeryLong("1.50000");
VeryLong quotient = number1.DivideBy(number2, numberOfDigits);
Assert.AreEqual("0.6666666666", quotient.ToString());
}
public void Divide_When_12345_d_53_Then_232_R49()
{
VeryLong remainder;
VeryLong number1 = new VeryLong("12345");
VeryLong number2 = new VeryLong("53");
VeryLong quotient = number1.DivideBy(number2, out remainder);
Assert.AreEqual("232", quotient.ToString());
Assert.AreEqual("49", remainder.ToString());
}
public void Divide_When_9_d_2_Then_4_R1()
{
VeryLong remainder;
VeryLong number1 = new VeryLong("9");
VeryLong number2 = new VeryLong("2");
VeryLong quotient = number1.DivideBy(number2, out remainder);
Assert.AreEqual("4", quotient.ToString());
Assert.AreEqual("1", remainder.ToString());
}
public void Divide_When_30000_d_3_Then_10000_R0()
{
VeryLong remainder;
VeryLong number1 = new VeryLong("30000");
VeryLong number2 = new VeryLong("3");
VeryLong quotient = number1.DivideBy(number2, out remainder);
Assert.AreEqual("10000", quotient.ToString());
Assert.AreEqual("0", remainder.ToString());
}