public void TestMethodNulls()
{
var t = new TestWrapper();
dynamic w = new DynamicProxy(t);
string r = w.EchoInternal(null);
Assert.Equal("Internal: ", r);
r = w.EchoInternal2(1);
Assert.Equal("Int: 1", r);
r = w.EchoInternal2("Test");
Assert.Equal("String: Test", r);
r = w.EchoInternal2("Test", "Testing");
Assert.Equal("Name: Test Value: Testing", r);
r = w.EchoInternal2("Test", null);
Assert.Equal("Name: Test Value: ", r);
r = w.EchoInternal3("Test", "Testing", null);
Assert.Equal("Name: Test Value: Testing Value2: ", r);
r = w.EchoInternal3("Test", 1, null);
Assert.Equal("Name: Test Value: 1 Value2: ", r);
}