public void UnregisterTrackedTypeStopsTracking()
{
DisposableTracker.RegisterTrackedType(typeof(TestDisposable));
DisposableTracker.RegisterTrackedType(typeof(ReferenceCounted));
using (var t = new TestDisposable())
using (var t2 = new ReferenceCounted())
{
//Confirm both items tracked
int trackedItems = 0;
DisposableTracker.EnumerateTrackedInstances((td) => trackedItems++);
Assert.AreEqual(2, trackedItems);
trackedItems = 0;
//Remove one type, and check only one instance being tracked
DisposableTracker.UnregisterTrackedType(typeof(TestDisposable));
DisposableTracker.EnumerateTrackedInstances((td) => trackedItems++);
Assert.AreEqual(1, trackedItems);
trackedItems = 0;
//Create another instance of the type NOT being tracked
//and ensure still only one tracked instance.
using (var t3 = new TestDisposable())
{
DisposableTracker.EnumerateTrackedInstances((td) => trackedItems++);
Assert.AreEqual(1, trackedItems);
}
}
}
public void TracksOnlyRegisteredTypes()
{
DisposableTracker.RegisterTrackedType(typeof(TestDisposable));
using (var t = new TestDisposable())
using (var t2 = new ReferenceCounted())
{
int trackedItems = 0;
DisposableTracker.EnumerateTrackedInstances((td) => trackedItems++);
Assert.AreEqual(1, trackedItems);
}
}
public void OutputsStackTraceWhenCaptured()
{
DisposableTracker.Enabled = false;
DisposableTracker.Enabled = true;
DisposableTracker.CaptureStackTraceAtCreation = true;
var disposable = new TestDisposable();
var sb = new StringBuilder();
DisposableTracker.EnumerateTrackedInstances((td) => sb.Append(td.CreationStackTrace));
Assert.IsTrue(sb.Length > 0);
System.Diagnostics.Trace.WriteLine(sb.ToString());
}
public void OutputsUndisposedObject()
{
DisposableTracker.Enabled = false;
DisposableTracker.Enabled = true;
DisposableTracker.CaptureStackTraceAtCreation = false;
var disposable = new TestDisposable();
var sb = new StringBuilder();
DisposableTracker.EnumerateTrackedInstances((td) => sb.Append(td.InstanceType.FullName + " created at " + td.CreationStackTrace + " Alive = " + td.IsAlive));
Assert.IsTrue(sb.Length > 0);
System.Diagnostics.Trace.WriteLine(sb.ToString());
}
public void OutputsDoesNotOutputUnregisteredObject()
{
DisposableTracker.Enabled = false;
DisposableTracker.Enabled = true;
var sb = new StringBuilder();
//DisposableTracker.CaptureStackTraceAtCreation = true;
var disposable = new TestDisposable();
disposable.Dispose();
DisposableTracker.EnumerateTrackedInstances((str) => sb.Append(str));
System.Diagnostics.Trace.WriteLine(sb.ToString());
Assert.IsTrue(sb.Length == 0);
}
public void OutputsFinalizedUndisposedObject()
{
DisposableTracker.Enabled = false;
DisposableTracker.Enabled = true;
var sb = new StringBuilder();
//DisposableTracker.CaptureStackTraceAtCreation = true;
var disposable = new TestDisposable();
disposable = null;
GC.Collect();
GC.WaitForPendingFinalizers();
DisposableTracker.EnumerateTrackedInstances((td) => sb.Append(td.InstanceType.FullName + " " + (td.IsAlive ? "Alive" : "Dead")));
System.Diagnostics.Trace.WriteLine(sb.ToString());
Assert.IsTrue(sb.Length > 0);
Assert.IsTrue(sb.ToString().Contains("Dead"));
}