public void TestIfThenElseIf()
{
// Create an "if (...) { } else if (...) { }" script
EditableScripts newScripts = Controller.CreateNewEditableScripts("game", "somescript", "if (someExpression) { msg (\"Then script\") }", true);
((EditableIfScript)newScripts[0]).AddElseIf();
EditableIfScript.EditableElseIf newElseIf = ((EditableIfScript)newScripts[0]).ElseIfScripts.First();
newElseIf.Expression = "elseIfExpression";
newElseIf.EditableScripts.AddNew("msg (\"test\")", "game");
// Capture update events
EditableScriptsUpdatedEventArgs lastArgs = null;
newScripts.Updated += (object sender, EditableScriptsUpdatedEventArgs e) => { lastArgs = e; };
// Check the initial display string is correct
string initialExpectedDisplayString = "If (someExpression) Then (Print \"Then script\"), Else If (elseIfExpression) Then (Print \"test\")";
Assert.AreEqual(initialExpectedDisplayString, newScripts.DisplayString());
// Now change the expression
Controller.StartTransaction("Change elseif expression");
newElseIf.Expression = "newElseIfExpression";
Controller.EndTransaction();
// Check the new display string is correct, and that we received the update event
string newExpectedDisplayString = "If (someExpression) Then (Print \"Then script\"), Else If (newElseIfExpression) Then (Print \"test\")";
Assert.AreEqual(newExpectedDisplayString, newScripts.DisplayString());
Assert.AreEqual(lastArgs.UpdatedScriptEventArgs.NewValue, "newElseIfExpression");
// Now undo and redo, and check the display strings update correctly
Controller.Undo();
Assert.AreEqual(initialExpectedDisplayString, newScripts.DisplayString());
Controller.Redo();
Assert.AreEqual(newExpectedDisplayString, newScripts.DisplayString());
// Now change the script. This automatically creates a transaction.
newElseIf.EditableScripts.AddNew("msg (\"test2\")", "game");
// Check the new display string is correct
string newerExpectedDisplayString = "If (someExpression) Then (Print \"Then script\"), Else If (newElseIfExpression) Then (Print \"test\" / Print \"test2\")".Replace(" / ", Environment.NewLine);
Assert.AreEqual(newerExpectedDisplayString, newScripts.DisplayString());
// Now undo and redo, and check the display strings update correctly
Controller.Undo();
Assert.AreEqual(newExpectedDisplayString, newScripts.DisplayString());
Controller.Redo();
Assert.AreEqual(newerExpectedDisplayString, newScripts.DisplayString());
}
private void TestUndoRedo(string initialScript, string initialDisplayString, string transactionDescription, Action <IEditableScript> changeValue, string newDisplayString)
{
EditableScriptsUpdatedEventArgs updatedEventArgs = null;
// Nothing in the undo/redo lists to start with
Assert.AreEqual(0, UndoList.Count);
Assert.AreEqual(0, RedoList.Count);
// Create a new script and apply it to game.somescript
EditableScripts newScripts = Controller.CreateNewEditableScripts("game", "somescript", initialScript, true);
// When the Updated event fires, store the event arguments locally
newScripts.Updated += delegate(object sender, EditableScriptsUpdatedEventArgs e)
{
updatedEventArgs = e;
};
// We should now have one script, and the undo list should have one item
Assert.AreEqual(1, newScripts.Scripts.Count());
Assert.AreEqual(1, UndoList.Count);
Assert.AreEqual(0, RedoList.Count);
IEditableScript script = newScripts[0];
Assert.AreEqual(initialDisplayString, script.DisplayString());
// Now make a change to the script
Controller.StartTransaction(transactionDescription);
changeValue(script);
// We expect the Updated event to have been triggered
Assert.IsTrue(updatedEventArgs != null, "Expected Updated event to be triggered");
// TO DO: Test the updated event args are correct
Controller.EndTransaction();
// We now have an additional undo list item
Assert.AreEqual(2, UndoList.Count);
Assert.AreEqual(0, RedoList.Count);
Assert.AreEqual(transactionDescription, UndoList[0]);
// Display string should be correct
Assert.AreEqual(newDisplayString, script.DisplayString());
// Now undo, and check the undo/redo lists are correct
Controller.Undo();
Assert.AreEqual(1, UndoList.Count);
Assert.AreEqual(1, RedoList.Count);
Assert.AreEqual(transactionDescription, RedoList[0]);
// The display string should be back to what it was before the change
Assert.AreEqual(initialDisplayString, script.DisplayString());
// Now redo, and check the undo/redo lists are correct
Controller.Redo();
Assert.AreEqual(2, UndoList.Count);
Assert.AreEqual(0, RedoList.Count);
Assert.AreEqual(transactionDescription, UndoList[0]);
// Display string should be back to the "changed" version
Assert.AreEqual(newDisplayString, script.DisplayString());
}
