public void GetFreeDynamicPortThrowsOnUnexpectedEndPointType()
{
// arrange
var port = 51234;
var factory = Mock.Of <ITcpListenerWrapperFactory>(x =>
x.Create(0, true).LocalEndpoint == new DnsEndPoint("localhost", port));
var helper = new TcpHelper(factory);
// act and assert
var error = Assert.Throws <InvalidOperationException>(() => helper.GetFreeDynamicPort());
Assert.Equal(Resources.Exception_UnexpectedEndpointType, error.Message);
}
public void GetsFreeDynamicPort()
{
// arrange
var port = 51234;
var factory = Mock.Of <ITcpListenerWrapperFactory>(x =>
x.Create(0, true).LocalEndpoint == new IPEndPoint(IPAddress.Loopback, port));
var helper = new TcpHelper(factory);
// act
var result = helper.GetFreeDynamicPort();
// assert
Assert.Equal(port, result);
}
public void GetFreeDynamicPortThrowsOnSocketError()
{
// arrange
var ex = new SocketException();
var factory = Mock.Of <ITcpListenerWrapperFactory>();
Mock.Get(factory).Setup(x => x.Create(0, true).Start()).Throws(ex);
var helper = new TcpHelper(factory);
// act and assert
var error = Assert.Throws <InvalidOperationException>(() => helper.GetFreeDynamicPort());
Assert.Equal(Resources.Exception_CouldNotOpenADynamicPortForExclusiveUse, error.Message);
Assert.Same(ex, error.InnerException);
}
