public void ImageMemoryTest()
{
SetImageStubImplementation();
CallCount count = NativeK4a.CountCalls();
Assert.AreEqual(0, count.Calls("k4a_image_create"));
Assert.AreEqual(0, count.Calls("k4a_image_release"));
Task.Run(() =>
{
using (Image image = new Image(ImageFormat.Custom, 640, 480, 640 * 2))
{
Memory <byte> memory = image.Memory;
System.Span <byte> memorySpan = memory.Span;
System.Span <short> shortSpan = MemoryMarshal.Cast <byte, short>(memorySpan);
Assert.AreEqual(0, shortSpan[0]);
Assert.AreEqual(1, shortSpan[1]);
image.Dispose();
}
}).Wait();
GC.Collect(0, GCCollectionMode.Forced, true, true);
GC.WaitForPendingFinalizers();
Assert.AreEqual(count.Calls("k4a_image_reference") + 1, count.Calls("k4a_image_release"), "References not zero");
}
public void Temperature()
{
this.SetCaptureReleaseImplementation();
this.nativeK4a.SetImplementation(@"
float k4a_capture_get_temperature_c(k4a_capture_t capture_handle)
{
STUB_ASSERT(capture_handle == (k4a_capture_t)0x0C001234);
return 2.5f;
}
void k4a_capture_set_temperature_c(k4a_capture_t capture_handle, float value)
{
STUB_ASSERT(capture_handle == (k4a_capture_t)0x0C001234);
STUB_ASSERT(value == 3.5f);
}
");
CallCount count = this.nativeK4a.CountCalls();
using (Capture c = new Capture())
{
// Temperature values should not be cached, so every access should call the
// native layer
Assert.AreEqual(0, count.Calls("k4a_capture_get_temperature_c"));
Assert.AreEqual(2.5f, c.Temperature);
Assert.AreEqual(1, count.Calls("k4a_capture_get_temperature_c"));
Assert.AreEqual(2.5f, c.Temperature);
Assert.AreEqual(2, count.Calls("k4a_capture_get_temperature_c"));
// Verify writes
Assert.AreEqual(0, count.Calls("k4a_capture_set_temperature_c"));
c.Temperature = 3.5f;
Assert.AreEqual(1, count.Calls("k4a_capture_set_temperature_c"));
// Verify the write is being marshaled correctly
_ = Assert.Throws(typeof(NativeFailureException), () =>
{
c.Temperature = 4.0f;
});
c.Dispose();
// Verify disposed behavior
_ = Assert.Throws(typeof(ObjectDisposedException), () =>
{
c.Temperature = 4.0f;
});
_ = Assert.Throws(typeof(ObjectDisposedException), () =>
{
float x = c.Temperature;
});
}
}
public void CaptureGarbageCollection()
{
this.nativeK4a.SetImplementation(@"
k4a_result_t k4a_capture_create(k4a_capture_t* capture_handle)
{
STUB_ASSERT(capture_handle != NULL);
*capture_handle = (k4a_capture_t)0x0C001234;
return K4A_RESULT_SUCCEEDED;
}
void k4a_capture_release(k4a_capture_t capture_handle)
{
STUB_ASSERT(capture_handle == (k4a_capture_t)0x0C001234);
}
k4a_result_t k4a_set_debug_message_handler(
k4a_logging_message_cb_t *message_cb,
void *message_cb_context,
k4a_log_level_t min_level)
{
STUB_ASSERT(message_cb != NULL);
return K4A_RESULT_SUCCEEDED;
}
");
CallCount count = this.nativeK4a.CountCalls();
Assert.AreEqual(0, count.Calls("k4a_capture_create"));
Assert.AreEqual(0, count.Calls("k4a_capture_release"));
WeakReference capture = this.CreateWithWeakReference(() =>
{
Capture c = new Capture();
// The reference should still exist and we should have not seen close called
Assert.AreEqual(1, count.Calls("k4a_capture_create"));
Assert.AreEqual(0, count.Calls("k4a_capture_release"));
return(c);
});
// The reference to the Capture object is no longer on the stack, and therefore is free to be garbage collected
// At this point capture.IsAlive is likely to be true, but not guaranteed to be
// Force garbage collection
GC.Collect(0, GCCollectionMode.Forced, true);
GC.WaitForPendingFinalizers();
Assert.AreEqual(false, capture.IsAlive);
// k4a_capture_release should have been called automatically
Assert.AreEqual(1, count.Calls("k4a_capture_create"));
Assert.AreEqual(1, count.Calls("k4a_capture_release"));
}
public void ImageGarbageCollection()
{
SetImageStubImplementation();
CallCount count = NativeK4a.CountCalls();
Assert.AreEqual(0, count.Calls("k4a_image_create"));
Assert.AreEqual(0, count.Calls("k4a_image_release"));
System.WeakReference image = CreateWithWeakReference(() =>
{
Image i = new Image(ImageFormat.Custom, 640, 480, 640 * 2);
var memory = i.Memory;
// The reference should still exist and we should have not seen close called
Assert.AreEqual(1, count.Calls("k4a_image_create"));
Assert.AreEqual(0, count.Calls("k4a_image_release"));
return(i);
});
// The reference to the Device object is no longer on the stack, and therefore is free to be garbage collected
// At this point capture.IsAlive is likely to be true, but not garanteed to be
// Force garbage collection
System.GC.Collect(0, System.GCCollectionMode.Forced, true);
System.GC.WaitForPendingFinalizers();
Assert.AreEqual(false, image.IsAlive);
// k4a_device_close should have been called automatically
Assert.AreEqual(1, count.Calls("k4a_image_create"));
Assert.AreEqual(count.Calls("k4a_image_reference") + 1, count.Calls("k4a_image_release"));
}