public void DecimalArithmetics()
{
var theAdd = Arithmetics.CreateAddOperation <decimal>();
var theSubtract = Arithmetics.CreateSubtractOperation <decimal>();
var theMultiply = Arithmetics.CreateMultiplyOperation <decimal>();
var theDivide = Arithmetics.CreateDivideOperation <decimal>();
var theNegate = Arithmetics.CreateNegateOperation <decimal>();
var theRound = Arithmetics.CreateRoundOperation <decimal>();
Assert.That(Arithmetics.GetZeroValue <decimal>(), Is.EqualTo(0.0m));
Assert.That(Arithmetics.GetOneValue <decimal>(), Is.EqualTo(1.0m));
Assert.That(Arithmetics.GetMinValue <decimal>(), Is.EqualTo(decimal.MinValue));
Assert.That(Arithmetics.GetMaxValue <decimal>(), Is.EqualTo(decimal.MaxValue));
Assert.That(theAdd(0.3m, 0.8m), Is.EqualTo(1.1m));
Assert.That(theAdd(9.378m, 1.765m), Is.EqualTo(11.143m));
Assert.That(theSubtract(11.143m, 9.378m), Is.EqualTo(1.765m));
Assert.That(theSubtract(1.1m, 0.8m), Is.EqualTo(0.3m));
Assert.That(theMultiply(5.0m, 0.25m), Is.EqualTo(1.25m));
Assert.That(theMultiply(3.33m, 3.0m), Is.EqualTo(9.99m));
Assert.That(theDivide(9.99m, 3.0m), Is.EqualTo(3.33m));
Assert.That(theDivide(1.25m, 0.25m), Is.EqualTo(5.0m));
Assert.That(theNegate(3.456m), Is.EqualTo(-3.456m));
Assert.That(theNegate(-0.08m), Is.EqualTo(0.08m));
Assert.That(theRound(2.3456m, 2, MidpointRounding.AwayFromZero), Is.EqualTo(2.35m));
decimal?theNullableDecimal = 9.876m;
var theNullableRound = Arithmetics.CreateRoundOperation <decimal?>();
Assert.That(theNullableRound(theNullableDecimal, 2, MidpointRounding.AwayFromZero), Is.EqualTo(9.88m));
Assert.That(theNullableRound(null, 2, MidpointRounding.AwayFromZero), Is.EqualTo(null));
}
public void DoubleArithmetics()
{
var theAdd = Arithmetics.CreateAddOperation <double>();
var theSubtract = Arithmetics.CreateSubtractOperation <double>();
var theMultiply = Arithmetics.CreateMultiplyOperation <double>();
var theDivide = Arithmetics.CreateDivideOperation <double>();
var theNegate = Arithmetics.CreateNegateOperation <double>();
var theRound = Arithmetics.CreateRoundOperation <double>();
Assert.That(Arithmetics.GetZeroValue <double>(), Is.EqualTo(0.0));
Assert.That(Arithmetics.GetOneValue <double>(), Is.EqualTo(1.0));
Assert.That(theAdd(0.3, 0.8), Is.EqualTo(1.1).Within(DoubleTolerance));
Assert.That(theAdd(9.378, 1.765), Is.EqualTo(11.143).Within(DoubleTolerance));
Assert.That(theSubtract(11.143, 9.378), Is.EqualTo(1.765).Within(DoubleTolerance));
Assert.That(theSubtract(1.1, 0.8), Is.EqualTo(0.3).Within(DoubleTolerance));
Assert.That(theMultiply(5.0, 0.25), Is.EqualTo(1.25).Within(DoubleTolerance));
Assert.That(theMultiply(3.33, 3.0), Is.EqualTo(9.99).Within(DoubleTolerance));
Assert.That(theDivide(9.99, 3.0), Is.EqualTo(3.33).Within(DoubleTolerance));
Assert.That(theDivide(1.25, 0.25), Is.EqualTo(5.0).Within(DoubleTolerance));
Assert.That(theNegate(3.456), Is.EqualTo(-3.456).Within(DoubleTolerance));
Assert.That(theNegate(-0.08), Is.EqualTo(0.08).Within(DoubleTolerance));
Assert.That(theRound(2.6789, 3, MidpointRounding.AwayFromZero), Is.EqualTo(2.679));
double?theNullableDouble = 1.234;
var theNullableRound = Arithmetics.CreateRoundOperation <double?>();
Assert.That(theNullableRound(theNullableDouble, 2, MidpointRounding.AwayFromZero), Is.EqualTo(1.23));
Assert.That(theNullableRound(null, 2, MidpointRounding.AwayFromZero), Is.EqualTo(null));
}
public void DateTimeArithmetics()
{
var theAddTimeSpan = Arithmetics.CreateAddOperation <DateTime, TimeSpan, DateTime>();
var theSubtractDateTime = Arithmetics.CreateSubtractOperation <DateTime, DateTime, TimeSpan>();
var theSubtractTimeSpan = Arithmetics.CreateSubtractOperation <DateTime, TimeSpan, DateTime>();
Assert.Throws <InvalidOperationException>(() => Arithmetics.CreateMultiplyOperation <DateTime>());
Assert.Throws <InvalidOperationException>(() => Arithmetics.CreateDivideOperation <DateTime>());
Assert.Throws <InvalidOperationException>(() => Arithmetics.CreateNegateOperation <DateTime>());
var theNegateTimeSpan = Arithmetics.CreateNegateOperation <TimeSpan>();
Assert.That(Arithmetics.GetZeroValue <TimeSpan>(), Is.EqualTo(TimeSpan.Zero));
Assert.That(Arithmetics.GetZeroValue <DateTime>(), Is.EqualTo(new DateTime()));
Assert.Throws <InvalidOperationException>(() => Arithmetics.GetOneValue <DateTime>());
Assert.Throws <InvalidOperationException>(() => Arithmetics.GetOneValue <TimeSpan>());
Assert.That(theAddTimeSpan(new DateTime(2000, 1, 1), new TimeSpan(3, 0, 0, 0)), Is.EqualTo(new DateTime(2000, 1, 4)));
Assert.That(theAddTimeSpan(new DateTime(2000, 3, 17), new TimeSpan(2, 2, 2)), Is.EqualTo(new DateTime(2000, 3, 17, 2, 2, 2)));
Assert.That(theSubtractDateTime(new DateTime(2000, 12, 12), new DateTime(2000, 12, 1)), Is.EqualTo(new TimeSpan(11, 0, 0, 0)));
Assert.That(theSubtractDateTime(new DateTime(2000, 3, 1), new DateTime(2000, 2, 28)), Is.EqualTo(new TimeSpan(2, 0, 0, 0)));
Assert.That(theSubtractTimeSpan(new DateTime(2000, 12, 12), new TimeSpan(11, 0, 0, 0)), Is.EqualTo(new DateTime(2000, 12, 1)));
Assert.That(theSubtractTimeSpan(new DateTime(2000, 3, 1), new TimeSpan(2, 0, 0, 0)), Is.EqualTo(new DateTime(2000, 2, 28)));
Assert.That(theNegateTimeSpan(new TimeSpan(3, 3, 3, 3)), Is.EqualTo(new TimeSpan(-3, -3, -3, -3)));
Assert.That(theNegateTimeSpan(new TimeSpan(-4, -4, -4, -4)), Is.EqualTo(new TimeSpan(4, 4, 4, 4)));
}
public void FloatArithmetics()
{
var theAdd = Arithmetics.CreateAddOperation <float>();
var theSubtract = Arithmetics.CreateSubtractOperation <float>();
var theMultiply = Arithmetics.CreateMultiplyOperation <float>();
var theDivide = Arithmetics.CreateDivideOperation <float>();
var theNegate = Arithmetics.CreateNegateOperation <float>();
Assert.That(Arithmetics.GetZeroValue <float>(), Is.EqualTo(0.0f));
Assert.That(Arithmetics.GetOneValue <float>(), Is.EqualTo(1.0f));
Assert.That(theAdd(0.3f, 0.8f), Is.EqualTo(1.1f).Within(FloatTolerance));
Assert.That(theAdd(9.378f, 1.765f), Is.EqualTo(11.143f).Within(FloatTolerance));
Assert.That(theSubtract(11.143f, 9.378f), Is.EqualTo(1.765f).Within(FloatTolerance));
Assert.That(theSubtract(1.1f, 0.8f), Is.EqualTo(0.3f).Within(FloatTolerance));
Assert.That(theMultiply(5.0f, 0.25f), Is.EqualTo(1.25f).Within(FloatTolerance));
Assert.That(theMultiply(3.33f, 3.0f), Is.EqualTo(9.99f).Within(FloatTolerance));
Assert.That(theDivide(9.99f, 3.0f), Is.EqualTo(3.33f).Within(FloatTolerance));
Assert.That(theDivide(1.25f, 0.25f), Is.EqualTo(5.0f).Within(FloatTolerance));
Assert.That(theNegate(3.456f), Is.EqualTo(-3.456f).Within(FloatTolerance));
Assert.That(theNegate(-0.08f), Is.EqualTo(0.08f).Within(FloatTolerance));
}
public void LongArithmetics()
{
var theAdd = Arithmetics.CreateAddOperation <long>();
var theSubtract = Arithmetics.CreateSubtractOperation <long>();
var theMultiply = Arithmetics.CreateMultiplyOperation <long>();
var theDivide = Arithmetics.CreateDivideOperation <long>();
var theNegate = Arithmetics.CreateNegateOperation <long>();
Assert.That(Arithmetics.GetZeroValue <long>(), Is.EqualTo(0L));
Assert.That(Arithmetics.GetOneValue <long>(), Is.EqualTo(1L));
Assert.That(theAdd(3L, 8L), Is.EqualTo(11L));
Assert.That(theAdd(9378L, 1765L), Is.EqualTo(11143L));
Assert.That(theSubtract(11143L, 9378L), Is.EqualTo(1765L));
Assert.That(theSubtract(11L, 8L), Is.EqualTo(3L));
Assert.That(theMultiply(50L, 25L), Is.EqualTo(1250L));
Assert.That(theMultiply(333L, 3L), Is.EqualTo(999L));
Assert.That(theDivide(999L, 3L), Is.EqualTo(333L));
Assert.That(theDivide(125L, 25L), Is.EqualTo(5L));
Assert.That(theNegate(3456L), Is.EqualTo(-3456L));
Assert.That(theNegate(-8L), Is.EqualTo(8L));
}
public void IntegerArithmetics()
{
var theAdd = Arithmetics.CreateAddOperation <int>();
var theSubtract = Arithmetics.CreateSubtractOperation <int>();
var theMultiply = Arithmetics.CreateMultiplyOperation <int>();
var theDivide = Arithmetics.CreateDivideOperation <int>();
var theNegate = Arithmetics.CreateNegateOperation <int>();
Assert.That(Arithmetics.GetZeroValue <int>(), Is.EqualTo(0));
Assert.That(Arithmetics.GetOneValue <int>(), Is.EqualTo(1));
Assert.That(theAdd(3, 8), Is.EqualTo(11));
Assert.That(theAdd(9378, 1765), Is.EqualTo(11143));
Assert.That(theSubtract(11143, 9378), Is.EqualTo(1765));
Assert.That(theSubtract(11, 8), Is.EqualTo(3));
Assert.That(theMultiply(50, 25), Is.EqualTo(1250));
Assert.That(theMultiply(333, 3), Is.EqualTo(999));
Assert.That(theDivide(999, 3), Is.EqualTo(333));
Assert.That(theDivide(125, 25), Is.EqualTo(5));
Assert.That(theNegate(3456), Is.EqualTo(-3456));
Assert.That(theNegate(-8), Is.EqualTo(8));
}
public void Exceptions()
{
Assert.Throws <InvalidOperationException>(() => Arithmetics.GetMinValue <string>());
Assert.Throws <InvalidOperationException>(() => Arithmetics.GetMaxValue <string>());
}
public void InvalidCreation()
{
Assert.Throws <InvalidOperationException>(() => Arithmetics.CreateAddOperation <ArithmeticsTest>());
}