public void Register_ThenAllocHGlobalForBuffer()
{
// ARRANGE
var mockedBroadcastDeviceInterfaceFactory = new Mock<IBroadcastDeviceInterfaceFactory>();
var mockedMarshallWrapper = new Mock<IMarshalWrapper>();
var mockedUnsafeNativeMethodsWrapper = new Mock<IUnsafeNativeMethodsWrapper>();
var mockedProcessHandleResultFactory = new Mock<IProcessHandleResultFactory>();
var deviceManagement = new DeviceNotifications(
mockedBroadcastDeviceInterfaceFactory.Object,
mockedMarshallWrapper.Object,
mockedUnsafeNativeMethodsWrapper.Object,
mockedProcessHandleResultFactory.Object);
var handleReceivesNotifications = new IntPtr(42);
var devBroadcastDeviceInterface = new BroadcastDeviceInterface();
mockedBroadcastDeviceInterfaceFactory.Setup(x => x.CreateBroadcastDeviceInterface()).Returns(devBroadcastDeviceInterface);
// ACT
deviceManagement.Register(handleReceivesNotifications);
// ASSERT
mockedMarshallWrapper.Verify(x => x.AllocHGlobal(devBroadcastDeviceInterface.Size), Times.Once);
}
public void Register_WhenStructureToPointerThrowsException_ThenFreeGlobalIsCalled()
{
// ARRANGE
var mockedBroadcastDeviceInterfaceFactory = new Mock<IBroadcastDeviceInterfaceFactory>();
var mockedMarshallWrapper = new Mock<IMarshalWrapper>();
var mockedUnsafeNativeMethodsWrapper = new Mock<IUnsafeNativeMethodsWrapper>();
var mockedProcessHandleResultFactory = new Mock<IProcessHandleResultFactory>();
var deviceManagement = new DeviceNotifications(
mockedBroadcastDeviceInterfaceFactory.Object,
mockedMarshallWrapper.Object,
mockedUnsafeNativeMethodsWrapper.Object,
mockedProcessHandleResultFactory.Object);
var handleReceivesNotifications = new IntPtr(42);
var devBroadcastDeviceInterface = new BroadcastDeviceInterface();
var intPtrForBuffer = new IntPtr(111);
mockedBroadcastDeviceInterfaceFactory.Setup(x => x.CreateBroadcastDeviceInterface()).Returns(devBroadcastDeviceInterface);
mockedMarshallWrapper.Setup(x => x.AllocHGlobal(devBroadcastDeviceInterface.Size)).Returns(intPtrForBuffer);
mockedMarshallWrapper.Setup(x => x.StructureToPointer(devBroadcastDeviceInterface, intPtrForBuffer, false)).Throws<InvalidOperationException>();
// ACT
var testDelegate = new Assert.ThrowsDelegate(() => deviceManagement.Register(handleReceivesNotifications));
// ASSERT
Assert.Throws<InvalidOperationException>(testDelegate);
mockedMarshallWrapper.Verify(x => x.FreeHGlobal(intPtrForBuffer), Times.Once);
}
/// <summary>
/// The setup device watcher with handle created.
/// </summary>
/// <param name="testScheduler">
/// The test scheduler.
/// </param>
/// <param name="mockedHandle">
/// The mocked Handle.
/// </param>
/// <param name="guid">
/// The guid to use to register for device notifications.
/// </param>
/// <param name="message">
/// The message to use when creating a UsbDeviceNotification.
/// </param>
/// <param name="mockedUsbDeviceNotificationFactory">
/// The mocked Usb Device Notification Factory.
/// </param>
/// <param name="mockedMarshalWrapperThrowsException">
/// The mocked Marshal Wrapper Throws Exception.
/// </param>
/// <param name="numberOfNotifications">
/// The number Of Notifications.
/// </param>
/// <returns>
/// The <see cref="UsbDeviceWatcher"/>.
/// </returns>
private TestUsbDeviceWatcher SetupTestDeviceWatcherWithHandleCreated(
TestScheduler testScheduler,
Mock<IHandle> mockedHandle,
Guid guid,
Message message = default(Message),
Mock<IUsbDeviceNotificationFactory> mockedUsbDeviceNotificationFactory = null,
bool mockedMarshalWrapperThrowsException = false,
int numberOfNotifications = 1)
{
const string NAME = "Name";
var lParam = new IntPtr(42);
var messageToUse = message == default(Message) ? new Message { Msg = 0 } : message;
messageToUse.LParam = lParam;
var guidToUse = guid == Guid.Empty ? Guid.NewGuid() : guid;
var subject = new Subject<IHandle>();
var mockedUsbForm = new Mock<IUsbForm>();
var mockedUsbDeviceNotificationFactoryToUse = mockedUsbDeviceNotificationFactory ?? new Mock<IUsbDeviceNotificationFactory>();
var mockedMarshalWrapper = new Mock<IMarshalWrapper>();
var mockedDevBroadcastDeviceInterface = new BroadcastDeviceInterface {Name = NAME, Guid = guidToUse};
if (mockedMarshalWrapperThrowsException)
{
mockedMarshalWrapper.Setup(x => x.PointerToStructure<BroadcastDeviceInterface>(lParam, typeof(BroadcastDeviceInterface))).Throws<InvalidOperationException>();
}
else
{
mockedMarshalWrapper.Setup(x => x.PointerToStructure<BroadcastDeviceInterface>(lParam, typeof(BroadcastDeviceInterface))).Returns(mockedDevBroadcastDeviceInterface);
}
mockedUsbForm.Setup(x => x.Run()).Returns(subject);
mockedUsbDeviceNotificationFactoryToUse.Setup(x => x.Create(guidToUse, messageToUse, NAME))
.Returns(() => new UsbDeviceNotification(guidToUse, messageToUse, NAME));
var testUsbDeviceWatcher = new TestUsbDeviceWatcher(mockedMarshalWrapper.Object, mockedUsbDeviceNotificationFactoryToUse.Object, mockedUsbForm.Object, guidToUse);
Enumerable.Range(0, numberOfNotifications)
.ToList()
.ForEach(x => testScheduler.Schedule(() =>
{
subject.OnNext(mockedHandle.Object);
testUsbDeviceWatcher.SimulateMessage(messageToUse);
}));
return testUsbDeviceWatcher;
}