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author | Olivier Goffart <ogoffart@trolltech.com> | 2009-05-25 22:47:06 +0200 |
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committer | Olivier Goffart <ogoffart@trolltech.com> | 2009-05-27 10:30:53 +0200 |
commit | 0ea19cf01e2381969a8b8ce8cdaffe9ce873d3a9 (patch) | |
tree | 366d238fbd75b808de8aa7b701351f225a7e79dc /tests/auto/qobject | |
parent | 5e14efa547ffac5890b008ad23e9ff0bc634a3e1 (diff) | |
download | qt4-tools-0ea19cf01e2381969a8b8ce8cdaffe9ce873d3a9.tar.gz |
Add a flag that ensure that a connection is made only one
It is often desirable, when doing connection, to ensure that the same
connection is only made once. This can be done with the
Qt::UniqueConnection 'flag'
Also documented the order the slot are called
Reviewed-by: Brad
Diffstat (limited to 'tests/auto/qobject')
-rw-r--r-- | tests/auto/qobject/tst_qobject.cpp | 81 |
1 files changed, 77 insertions, 4 deletions
diff --git a/tests/auto/qobject/tst_qobject.cpp b/tests/auto/qobject/tst_qobject.cpp index fb460732e6..399d021c59 100644 --- a/tests/auto/qobject/tst_qobject.cpp +++ b/tests/auto/qobject/tst_qobject.cpp @@ -116,6 +116,7 @@ private slots: void dumpObjectInfo(); void connectToSender(); void qobjectConstCast(); + void uniqConnection(); protected: }; @@ -204,12 +205,20 @@ public: sequence_slot3 = 0; sequence_slot2 = 0; sequence_slot1 = 0; + count_slot1 = 0; + count_slot2 = 0; + count_slot3 = 0; + count_slot4 = 0; } int sequence_slot1; int sequence_slot2; int sequence_slot3; int sequence_slot4; + int count_slot1; + int count_slot2; + int count_slot3; + int count_slot4; bool called(int slot) { switch (slot) { @@ -224,10 +233,10 @@ public: static int sequence; public slots: - void slot1() { sequence_slot1 = ++sequence; } - void slot2() { sequence_slot2 = ++sequence; } - void slot3() { sequence_slot3 = ++sequence; } - void slot4() { sequence_slot4 = ++sequence; } + void slot1() { sequence_slot1 = ++sequence; count_slot1++; } + void slot2() { sequence_slot2 = ++sequence; count_slot2++; } + void slot3() { sequence_slot3 = ++sequence; count_slot3++; } + void slot4() { sequence_slot4 = ++sequence; count_slot4++; } }; @@ -2783,5 +2792,69 @@ void tst_QObject::qobjectConstCast() QVERIFY(qobject_cast<const FooObject *>(cptr)); } +void tst_QObject::uniqConnection() +{ + SenderObject *s = new SenderObject; + ReceiverObject *r1 = new ReceiverObject; + ReceiverObject *r2 = new ReceiverObject; + r1->reset(); + r2->reset(); + ReceiverObject::sequence = 0; + + QVERIFY( connect( s, SIGNAL( signal1() ), r1, SLOT( slot1() ) , Qt::UniqueConnection) ); + QVERIFY( connect( s, SIGNAL( signal1() ), r2, SLOT( slot1() ) , Qt::UniqueConnection) ); + QVERIFY( connect( s, SIGNAL( signal1() ), r1, SLOT( slot3() ) , Qt::UniqueConnection) ); + QVERIFY( connect( s, SIGNAL( signal3() ), r1, SLOT( slot3() ) , Qt::UniqueConnection) ); + + s->emitSignal1(); + s->emitSignal2(); + s->emitSignal3(); + s->emitSignal4(); + + QCOMPARE( r1->count_slot1, 1 ); + QCOMPARE( r1->count_slot2, 0 ); + QCOMPARE( r1->count_slot3, 2 ); + QCOMPARE( r1->count_slot4, 0 ); + QCOMPARE( r2->count_slot1, 1 ); + QCOMPARE( r2->count_slot2, 0 ); + QCOMPARE( r2->count_slot3, 0 ); + QCOMPARE( r2->count_slot4, 0 ); + QCOMPARE( r1->sequence_slot1, 1 ); + QCOMPARE( r2->sequence_slot1, 2 ); + QCOMPARE( r1->sequence_slot3, 4 ); + + r1->reset(); + r2->reset(); + ReceiverObject::sequence = 0; + + QVERIFY( connect( s, SIGNAL( signal4() ), r1, SLOT( slot4() ) , Qt::UniqueConnection) ); + QVERIFY( connect( s, SIGNAL( signal4() ), r2, SLOT( slot4() ) , Qt::UniqueConnection) ); + QVERIFY(!connect( s, SIGNAL( signal4() ), r2, SLOT( slot4() ) , Qt::UniqueConnection) ); + QVERIFY( connect( s, SIGNAL( signal1() ), r2, SLOT( slot4() ) , Qt::UniqueConnection) ); + QVERIFY(!connect( s, SIGNAL( signal4() ), r1, SLOT( slot4() ) , Qt::UniqueConnection) ); + + s->emitSignal4(); + QCOMPARE( r1->count_slot4, 1 ); + QCOMPARE( r2->count_slot4, 1 ); + QCOMPARE( r1->sequence_slot4, 1 ); + QCOMPARE( r2->sequence_slot4, 2 ); + + r1->reset(); + r2->reset(); + ReceiverObject::sequence = 0; + + connect( s, SIGNAL( signal4() ), r1, SLOT( slot4() ) ); + + s->emitSignal4(); + QCOMPARE( r1->count_slot4, 2 ); + QCOMPARE( r2->count_slot4, 1 ); + QCOMPARE( r1->sequence_slot4, 3 ); + QCOMPARE( r2->sequence_slot4, 2 ); + + delete s; + delete r1; + delete r2; +} + QTEST_MAIN(tst_QObject) #include "tst_qobject.moc" |