public void SingletonCallSite_Test()
{
int x = 1;
var callSite = new SingletonCallSite(() => lmps => x++);
var t = new Thread(() =>
{
Assert.Equal(1, callSite.Invoke());
Assert.Equal(1, callSite.Invoke());
});
t.Start();
t.Join();
var t2 = new Thread(() =>
{
Assert.Equal(1, callSite.Invoke());
Assert.Equal(1, callSite.Invoke());
});
t2.Start();
t2.Join();
Assert.Equal(2, x);
Assert.Equal(ServiceLifetime.Singleton, callSite.Lifetime);
}