public void Clients_DoNotHaveToCareAboutNulls()
{
var notNull = new EqualitySubject("a", 1, 1m);
var chainable = new SelectorEqualizer <EqualitySubject, int>(s => s.I);
Assert.That(chainable.Equals(notNull, null), Is.False);
Assert.That(chainable.Equals(null, notNull), Is.False);
Assert.That(chainable.Equals(null, null), Is.True);
}
public void Chaining_IsDestructive()
{
EqualitySubject x1 = new EqualitySubject("x", 1, 1m), x2 = new EqualitySubject("x", 1, 2m);
ChainableEqualizer <EqualitySubject> sAndI = new SelectorEqualizer <EqualitySubject, string>(s => s.S)
.Then(s => s.I);
Assert.That(sAndI.Equals(x1, x2), Is.True);
var allProp = sAndI.Then(Eq <EqualitySubject> .By(s => s.D));
Assert.That(allProp.Equals(x1, x2), Is.False);
Assert.That(sAndI.Equals(x1, x2), Is.False);
}