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28
29
30#include <QtTest/QtTest>
31
32#include <QtCore/qcoreapplication.h>
33#include <QtCore/qcoreevent.h>
34
35class tst_QEvent : public QObject
36{
37 Q_OBJECT
38public:
39 tst_QEvent();
40 ~tst_QEvent();
41
42private slots:
43 void registerEventType_data();
44 void registerEventType();
45 void exhaustEventTypeRegistration(); // keep behind registerEventType() test
46
47private:
48 bool registerEventTypeSucceeded; // track success of registerEventType for use by exhaustEventTypeRegistration()
49};
50
51tst_QEvent::tst_QEvent()
52 : registerEventTypeSucceeded(true)
53{ }
54
55tst_QEvent::~tst_QEvent()
56{ }
57
58void tst_QEvent::registerEventType_data()
59{
60 QTest::addColumn<int>(name: "hint");
61 QTest::addColumn<int>(name: "expected");
62
63 // default argument
64 QTest::newRow(dataTag: "default") << -1 << int(QEvent::MaxUser);
65 // hint not valid
66 QTest::newRow(dataTag: "User-1") << int(QEvent::User - 1) << int(QEvent::MaxUser - 1);
67 // hint not valid II
68 QTest::newRow(dataTag: "MaxUser+1") << int(QEvent::MaxUser + 1) << int(QEvent::MaxUser - 2);
69 // hint valid, but already taken
70 QTest::newRow(dataTag: "MaxUser-1") << int(QEvent::MaxUser - 1) << int(QEvent::MaxUser - 3);
71 // hint valid, but not taken
72 QTest::newRow(dataTag: "User + 1000") << int(QEvent::User + 1000) << int(QEvent::User + 1000);
73}
74
75void tst_QEvent::registerEventType()
76{
77 const bool oldRegisterEventTypeSucceeded = registerEventTypeSucceeded;
78 registerEventTypeSucceeded = false;
79 QFETCH(int, hint);
80 QFETCH(int, expected);
81 QCOMPARE(QEvent::registerEventType(hint), expected);
82 registerEventTypeSucceeded = oldRegisterEventTypeSucceeded;
83}
84
85void tst_QEvent::exhaustEventTypeRegistration()
86{
87 if (!registerEventTypeSucceeded)
88 QSKIP("requires the previous test (registerEventType) to have finished successfully");
89
90 int i = QEvent::User;
91 int result;
92 while ((result = QEvent::registerEventType(hint: i)) == i)
93 ++i;
94 QCOMPARE(i, int(QEvent::User + 1000));
95 QCOMPARE(result, int(QEvent::MaxUser - 4));
96 i = QEvent::User + 1001;
97 while ((result = QEvent::registerEventType(hint: i)) == i)
98 ++i;
99 QCOMPARE(result, -1);
100 QCOMPARE(i, int(QEvent::MaxUser - 4));
101}
102
103QTEST_MAIN(tst_QEvent)
104#include "tst_qevent.moc"
105

source code of qtbase/tests/auto/gui/kernel/qevent/tst_qevent.cpp