public async Task Discover_CancelBeforeFinish_ReturnsPartialList()
{
// Arrange
Guid messageId = Guid.NewGuid();
TestCamera camera = null;
Mock <IOnvifUdpClient> udpClientMock = new Mock <IOnvifUdpClient> ();
udpClientFactoryMock.Setup(cf => cf.CreateClientForeachInterface()).Returns(new List <IOnvifUdpClient> {
udpClientMock.Object
});
udpClientMock.Setup(cl => cl.SendProbeAsync(It.IsAny <Guid> (), It.IsAny <IPEndPoint> ()))
.ReturnsAsync(200)
.Callback <Guid, IPEndPoint> ((mId, endpoint) => {
messageId = mId;
});
var cameraNumber = 1;
udpClientMock.Setup(udp => udp.ReceiveAsync())
.Returns(async() => {
await Task.Delay(500).ConfigureAwait(false);
var ip = $"192.168.1.{cameraNumber}";
cameraNumber++;
camera = new TestCamera(messageId, Guid.NewGuid(), "AxisHardware", "AxisName", ip);
return(new UdpReceiveResult(Utils.CreateProbeResponse(camera), IPEndPoint.Parse(ip)));
});
// Act
CancellationTokenSource cancellation = new CancellationTokenSource(600); // Cancel after 600ms. Since cameras are received every 500ms, we will receive only one
var discoveredDevices = await wSDiscovery.Discover(10, cancellation.Token);
// Assert
discoveredDevices.Should().HaveCount(1);
}
public async Task Discover_CancelBeforeFinish_ReturnsEmptyList()
{
// Arrange
CancellationTokenSource cancellation = new CancellationTokenSource();
Guid messageId = Guid.NewGuid();
TestCamera camera = null;
Mock <IOnvifUdpClient> udpClientMock = new Mock <IOnvifUdpClient> ();
udpClientFactoryMock.Setup(cf => cf.CreateClientForeachInterface()).Returns(new List <IOnvifUdpClient> {
udpClientMock.Object
});
udpClientMock.Setup(cl => cl.SendProbeAsync(It.IsAny <Guid> (), It.IsAny <IPEndPoint> ()))
.ReturnsAsync(200)
.Callback <Guid, IPEndPoint> ((mId, endpoint) => {
messageId = mId;
});
udpClientMock.Setup(udp => udp.ReceiveAsync())
.ReturnsAsync(() => {
camera = new TestCamera(messageId, Guid.NewGuid(), "AxisHardware", "AxisName", "192.168.1.12");
return(new UdpReceiveResult(Utils.CreateProbeResponse(camera), IPEndPoint.Parse("192.168.1.12")));
}).Callback(() => cancellation.Cancel());
// Act
var discoveredDevices = await wSDiscovery.Discover(1, cancellation.Token);
// Assert
discoveredDevices.Should().BeEmpty();
}
public static byte[] CreateProbeResponse(TestCamera camera)
{
string templateResponse = File.ReadAllText("response.txt");
string modifiedResponse = String.Format(templateResponse, camera.MessageId, camera.Address,
camera.Model, camera.Manufacturer, camera.IP);
return(Encoding.ASCII.GetBytes(modifiedResponse));
}
public async Task Discover_TwoClients_OneCameraPerclient_ReturnsListWithTwoCameras()
{
// Arrange
Guid messageId1 = Guid.NewGuid();
Guid messageId2 = Guid.NewGuid();
TestCamera camera1 = null;
TestCamera camera2 = null;
Mock <IOnvifUdpClient> udpClient1Mock = new Mock <IOnvifUdpClient> ();
Mock <IOnvifUdpClient> udpClient2Mock = new Mock <IOnvifUdpClient> ();
udpClientFactoryMock.Setup(cf => cf.CreateClientForeachInterface()).Returns(new List <IOnvifUdpClient> {
udpClient1Mock.Object, udpClient2Mock.Object
});
udpClient1Mock.Setup(cl => cl.SendProbeAsync(It.IsAny <Guid> (), It.IsAny <IPEndPoint> ()))
.ReturnsAsync(200)
.Callback <Guid, IPEndPoint> ((mId, endpoint) => {
messageId1 = mId;
});
udpClient2Mock.Setup(cl => cl.SendProbeAsync(It.IsAny <Guid> (), It.IsAny <IPEndPoint> ()))
.ReturnsAsync(200)
.Callback <Guid, IPEndPoint> ((mId, endpoint) => {
messageId2 = mId;
});
udpClient1Mock.Setup(udp => udp.ReceiveAsync())
.ReturnsAsync(() => {
camera1 = new TestCamera(messageId1, Guid.NewGuid(), "AxisHardware", "AxisName", "192.168.1.12");
return(new UdpReceiveResult(Utils.CreateProbeResponse(camera1), IPEndPoint.Parse("192.168.1.12")));
});
udpClient2Mock.Setup(udp => udp.ReceiveAsync())
.ReturnsAsync(() => {
camera2 = new TestCamera(messageId2, Guid.NewGuid(), "SamsungHardware", "SamsungName", "192.168.1.14");
return(new UdpReceiveResult(Utils.CreateProbeResponse(camera2), IPEndPoint.Parse("192.168.1.14")));
});
// Act
var discoveredDevices = await wSDiscovery.Discover(1);
// Assert
discoveredDevices.Should().HaveCount(2);
var firstDevice = discoveredDevices.ElementAt(0);
firstDevice.Address.Should().Be(camera1.IP);
firstDevice.Model.Should().Be(camera1.Model);
firstDevice.Mfr.Should().Be(camera1.Manufacturer);
var secondDevice = discoveredDevices.ElementAt(1);
secondDevice.Address.Should().Be(camera2.IP);
secondDevice.Model.Should().Be(camera2.Model);
secondDevice.Mfr.Should().Be(camera2.Manufacturer);
udpClientFactoryMock.Verify(cf => cf.CreateClientForeachInterface(), Times.Once);
udpClient1Mock.Verify(c => c.SendProbeAsync(It.IsAny <Guid> (), It.IsAny <IPEndPoint> ()), Times.Once);
udpClient1Mock.Verify(c => c.ReceiveAsync(), Times.AtLeast(2));
}
public async Task Discover_Exception_In_ReceiveAsync_Do_Not_Throws_And_Returns_List()
{
// Arrange
Guid messageId = Guid.NewGuid();
TestCamera camera = null;
Mock <IOnvifUdpClient> udpClientMock = new Mock <IOnvifUdpClient> ();
udpClientFactoryMock.Setup(cf => cf.CreateClientForeachInterface()).Returns(new List <IOnvifUdpClient> {
udpClientMock.Object
});
udpClientMock.Setup(cl => cl.SendProbeAsync(It.IsAny <Guid> (), It.IsAny <IPEndPoint> ()))
.ReturnsAsync(200)
.Callback <Guid, IPEndPoint> ((mId, endpoint) => {
messageId = mId;
});
udpClientMock.SetupSequence(udp => udp.ReceiveAsync())
.ReturnsAsync(() => {
var ip = $"192.168.1.1";
camera = new TestCamera(messageId, Guid.NewGuid(), "AxisHardware", "AxisName", ip);
return(new UdpReceiveResult(Utils.CreateProbeResponse(camera), IPEndPoint.Parse(ip)));
})
.ThrowsAsync(new Exception())
.Returns(async() => {
var ip = $"192.168.1.2";
await Task.Delay(700);
camera = new TestCamera(messageId, Guid.NewGuid(), "AxisHardware", "AxisName", ip);
return(new UdpReceiveResult(Utils.CreateProbeResponse(camera), IPEndPoint.Parse(ip)));
})
.Returns(async() => {
var ip = $"192.168.1.3";
await Task.Delay(400);
camera = new TestCamera(messageId, Guid.NewGuid(), "AxisHardware", "AxisName", ip);
return(new UdpReceiveResult(Utils.CreateProbeResponse(camera), IPEndPoint.Parse(ip)));
});
// Act
var discoveredDevices = await wSDiscovery.Discover(1);
// Arrange
discoveredDevices.Should().NotBeEmpty();
discoveredDevices.Should().HaveCount(2);
}