public void GetPeekLockControlForMessageInvokesProvider()
{
TestMessage testMessage = new TestMessage();
testMessage.GetPeekLockControl();
_mockMessagePeekLockControlProvider.Verify(mplcp => mplcp.GetMessagePeekLockControl(testMessage), Times.Once());
}
public void AttemptingToGetPeekLockControlForNullMessageThrows()
{
TestMessage message = null;
Action action = () => message.GetPeekLockControl();
action.ShouldThrow <ArgumentNullException>()
.And.ParamName.Should().Be("message");
}