Internal state transitions incorrectly list Entry actions in DOT graph export

[peitschie]

From my understanding (backed up by the test below), the Entry actions are not invoked for InternalTransitions, however, the DOT graph export includes this against the internal transition name for some reason.

I've thrown together a quick test demonstrating this:

        [Test]
        public void GenerateGraph_InternalTransitions()
        {
            int onEntry = 0;
            int onInternal = 0;

            const string on = "On";
            const string off = "Off";
            const char a = 'a';
            const char space = ' ';

            // Instantiate a new state machine in the 'off' state
            var onOffSwitch = new StateMachine<string, char>(off);

            // Configure state machine with the Configure method, supplying the state to be configured as a parameter
            onOffSwitch.Configure(off)
                .OnEntry(() => onEntry++)
                .InternalTransition(a, () => onInternal++)
                .Permit(space, on);

            onOffSwitch.Configure(on).Permit(space, off);

            var graph = UmlDotGraph.Format(onOffSwitch.GetInfo());
            Console.WriteLine(graph);

            Assert.That(onEntry, Is.EqualTo(0));
            Assert.That(onInternal, Is.EqualTo(0));

            onOffSwitch.Fire(a);

            Assert.That(onEntry, Is.EqualTo(0));
            Assert.That(onInternal, Is.EqualTo(1));
        }

This outputs a graph like this:

digraph {
compound=true;
node [shape=Mrecord]
rankdir="LR"
"Off" [label="Off|entry / Function"];
"On" [label="On"];

"Off" -> "Off" [style="solid", label="a / Function [Function]"];
"Off" -> "On" [style="solid", label=" "];
"On" -> "Off" [style="solid", label=" "];
 init [label="", shape=point];
 init -> "Off"[style = "solid"]
}

[HenningNT]

The DOT graph code is incorrectly drawing the internal transition as an re-entrant transition.

[bruceahaines]

This looks like the same as #587 and should be fixed with PR #589