gracefully handle deletion of transition's target state

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/auto/qstatemachine/tst_qstatemachine.cpp b/tests/auto/qstatemachine/tst_qstatemachine.cpp
index fa49ecb..dbc67d1 100644
--- a/tests/auto/qstatemachine/tst_qstatemachine.cpp
+++ b/tests/auto/qstatemachine/tst_qstatemachine.cpp
@@ -106,6 +106,7 @@ private slots:
     void historyStates();
     void startAndStop();
     void targetStateWithNoParent();
+    void targetStateDeleted();
     void transitionToRootState();
     void transitionEntersParent();
     
@@ -1940,6 +1941,18 @@ void tst_QStateMachine::targetStateWithNoParent()
     QCOMPARE(machine.error(), QStateMachine::NoCommonAncestorForTransitionError);
 }
 
+void tst_QStateMachine::targetStateDeleted()
+{
+    QStateMachine machine;
+    QState *s1 = new QState(machine.rootState());
+    s1->setObjectName("s1");
+    QState *s2 = new QState(machine.rootState());
+    QAbstractTransition *trans = s1->addTransition(s2);
+    delete s2;
+    QCOMPARE(trans->targetState(), (QAbstractState*)0);
+    QVERIFY(trans->targetStates().isEmpty());
+}
+
 void tst_QStateMachine::defaultGlobalRestorePolicy()
 {
     QStateMachine machine;