public void No_Reference_Allows_GC()
{
var obj = new Object();
var gcTester = new GCWatch(obj);
obj = null;
Assert.IsTrue(gcTester.IsEligibleForGC());
}
public void Usable_Reference_Keeps_Object_Alive()
{
var obj = new Object();
var gcTester = new GCWatch(obj);
Assert.IsFalse(gcTester.IsEligibleForGC());
GC.KeepAlive(obj);
}
public void Reference_Keeps_Object_Alive_Or_Not()
{
var obj = new Object();
var gcTester = new GCWatch(obj);
#if DEBUG
Assert.IsFalse(gcTester.IsEligibleForGC());
#else
Assert.IsTrue(gcTester.IsEligibleForGC());
#endif
}
public void GC_Collects_Graph()
{
var foo1 = new Foo();
var foo2 = new Foo();
var gcTester1 = new GCWatch(foo1);
var gcTester2 = new GCWatch(foo2);
foo1.objects.Add(foo2);
foo2.objects.Add(foo1);
foo1 = null;
Assert.IsFalse(gcTester1.IsEligibleForGC());
Assert.IsFalse(gcTester2.IsEligibleForGC());
GC.KeepAlive(foo2);
foo2 = null;
Assert.IsTrue(gcTester1.IsEligibleForGC());
Assert.IsTrue(gcTester2.IsEligibleForGC());
}