public void TestRemovesCorrectly()
{
var registry = new SendableRegistry();
var sendableMock = new Mock <ISendable>();
const string name = "mysendable";
registry.Add(sendableMock.Object, name);
Assert.True(registry.Contains(sendableMock.Object));
Assert.True(registry.Remove(sendableMock.Object));
Assert.False(registry.Contains(sendableMock.Object));
Assert.Empty(registry.GetName(sendableMock.Object));
}