public void TestReferenceEquals()
{
var z = new ComplexNumber(1, 2);
// ReSharper disable EqualExpressionComparison
(z == z).ShouldBeTrue();
// ReSharper restore EqualExpressionComparison
}
public void TestEqualityNull()
{
var z = new ComplexNumber(1, 2);
// ReSharper disable ConditionIsAlwaysTrueOrFalse
(z == null).ShouldBeFalse();
// ReSharper restore ConditionIsAlwaysTrueOrFalse
}
public void TestNotEquals()
{
var z = new ComplexNumber(1, 2);
var w = new ComplexNumber(1, 2);
var x = new ComplexNumber(3, 2);
(z != x).ShouldBeTrue();
(z != w).ShouldBeFalse();
}
public void ComplexNumberHashcodeShouldBeAsExpected()
{
var z = new ComplexNumber(1, 2);
z.GetHashCode().ShouldEqual(z.Re.GetHashCode() ^ z.Im.GetHashCode());
}
public ComplexNumber Product(ComplexNumber w)
{
return new ComplexNumber(X * w.X - Y * w.Y,
X * w.Y + Y * w.X);
}
protected bool Equals(ComplexNumber other)
{
// ReSharper disable CompareOfFloatsByEqualityOperator
return Re == other.Re && Im == other.Im;
// ReSharper restore CompareOfFloatsByEqualityOperator
}