public void GenerationIsThreadSafe()
{
var provider = new CountingMachineInfoProvider();
var trigger = new ManualResetEventSlim();
var threads = new Thread[100];
for (var i = 0; i < threads.Length; i++)
{
threads[i] = new Thread(state =>
{
var provider = (IMachineInfoProvider)state;
trigger.Wait();
HardwareUtils.Init(provider);
HardwareUtils.GetMachineID(provider);
});
threads[i].Start(provider);
}
trigger.Set();
for (var i = 0; i < threads.Length; i++)
{
threads[i].Join();
}
Assert.Equal(3, provider.TotalInvocations);
}
public void MachineInfoIsProcessedInBackground()
{
var provider = new ThreadRejectingMachineInfoProvider(Thread.CurrentThread.ManagedThreadId);
HardwareUtils.Init(provider);
// Should not throw
HardwareUtils.GetMachineID(provider);
}
public void ExceptionBubblesUp()
{
var provider = new ThrowingMachineInfoProvider();
HardwareUtils.Init(provider);
var exception = Assert.Throws <InvalidOperationException>(() => HardwareUtils.GetMachineID(provider));
Assert.Equal("This provider only throws.", exception.Message);
}
public void ProviderIsNotRetained()
{
WeakReference Setup()
{
var provider = new CountingMachineInfoProvider();
HardwareUtils.Init(provider);
HardwareUtils.GetMachineID(provider);
return(new WeakReference(provider));
}
var provider = Setup();
GC.Collect();
Assert.False(provider.IsAlive);
}
public void ResultIsCached()
{
var provider = new CountingMachineInfoProvider();
HardwareUtils.Init(provider);
HardwareUtils.GetMachineID(provider);
var invocations = provider.TotalInvocations;
for (var i = 0; i < 100; i++)
{
HardwareUtils.Init(provider);
HardwareUtils.GetMachineID(provider);
}
Assert.Equal(invocations, provider.TotalInvocations);
}
public void GeneratesMessageObject()
{
var provider = new StaticMachineInfoProvider();
HardwareUtils.Init(provider);
var messageObjectData = HardwareUtils.GetMachineID(provider);
var kv = new KeyValue();
using (var ms = new MemoryStream(messageObjectData))
{
Assert.True(kv.TryReadAsBinary(ms));
}
Assert.Equal("MessageObject", kv.Name);
Assert.Equal("3018ba91fc5a72f8b3f74501af6dd6da331b6cbc", kv["BB3"].AsString());
Assert.Equal("5d7e7734714b64bd6d88fef3ddbbf7ab4a749c5e", kv["FF2"].AsString());
Assert.Equal("a1807176456746ba2a3f5574bf47677a919dab49", kv["3B3"].AsString());
}
