public void NullValuesEqual()
{
var first = ReferenceHolder <object?> .Strong(null);
var second = ReferenceHolder <object?> .Weak(null);
VerifyEqual(first, second);
}
public void SameMixedObjectsEqual()
{
var obj = new object();
var first = ReferenceHolder <object?> .Strong(obj);
var second = ReferenceHolder <object?> .Weak(obj);
VerifyEqual(first, second);
}
public void ExpiredValueNotEqualToNull()
{
var strongNull = ReferenceHolder <object?> .Strong(null);
var weakNull = ReferenceHolder <object?> .Weak(null);
var expired = ReferenceHolder <object?> .TestAccessor.ReleasedWeak(hashCode : EqualityComparer <object?> .Default.GetHashCode(null !));
Assert.Equal(strongNull.GetHashCode(), expired.GetHashCode());
VerifyNotEqual(strongNull, expired);
VerifyNotEqual(weakNull, expired);
}
public void SameWeakObjectsEqual()
{
var obj = new object();
var first = ReferenceHolder <object?> .Weak(obj);
var second = ReferenceHolder <object?> .Weak(obj);
// 📝 There is no need for a GC.KeepAlive(obj) here. 'VerifyEqual' will produce correct results whether
// or not the object is still alive. When the object is alive, the equality path is the same as
// SameStrongObjectsEqual. When the object is not alive, the equality path is the same as
// ExpiredSameValuesEqual.
VerifyEqual(first, second);
}
