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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 792 insertions, 0 deletions

diff --git a/tests/auto/qatomicint/tst_qatomicint.cpp b/tests/auto/qatomicint/tst_qatomicint.cpp
new file mode 100644
index 0000000000..717187a2a6
--- /dev/null
+++ b/tests/auto/qatomicint/tst_qatomicint.cpp
@@ -0,0 +1,792 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+
+#include <QAtomicInt>
+#include <QCoreApplication>
+
+#include <limits.h>
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+class tst_QAtomicInt : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QAtomicInt();
+    ~tst_QAtomicInt();
+
+private slots:
+    void warningFree();
+
+    // QAtomicInt members
+    void constructor_data();
+    void constructor();
+    void copy_constructor_data();
+    void copy_constructor();
+    void equality_operator_data();
+    void equality_operator();
+    void inequality_operator_data();
+    void inequality_operator();
+    void not_operator_data();
+    void not_operator();
+    void cast_operator_data();
+    void cast_operator();
+    void assignment_operator_data();
+    void assignment_operator();
+
+    void isReferenceCountingNative();
+    void isReferenceCountingWaitFree();
+    void ref_data();
+    void ref();
+    void deref_data();
+    void deref();
+
+    void isTestAndSetNative();
+    void isTestAndSetWaitFree();
+    void testAndSet_data();
+    void testAndSet();
+
+    void isFetchAndStoreNative();
+    void isFetchAndStoreWaitFree();
+    void fetchAndStore_data();
+    void fetchAndStore();
+
+    void isFetchAndAddNative();
+    void isFetchAndAddWaitFree();
+    void fetchAndAdd_data();
+    void fetchAndAdd();
+
+    // stress tests
+    void testAndSet_loop();
+    void fetchAndAdd_loop();
+    void fetchAndAdd_threadedLoop();
+
+private:
+    static void warningFreeHelper();
+};
+
+tst_QAtomicInt::tst_QAtomicInt()
+{ }
+
+tst_QAtomicInt::~tst_QAtomicInt()
+{ }
+
+void tst_QAtomicInt::warningFreeHelper()
+{
+    Q_ASSERT(false);
+    // The code below is bogus, and shouldn't be run. We're looking for warnings, only.
+
+    QBasicAtomicInt i = Q_BASIC_ATOMIC_INITIALIZER(0);
+
+    int expectedValue = 0;
+    int newValue = 0;
+    int valueToAdd = 0;
+
+    i.ref();
+    i.deref();
+
+    i.testAndSetRelaxed(expectedValue, newValue);
+    i.testAndSetAcquire(expectedValue, newValue);
+    i.testAndSetRelease(expectedValue, newValue);
+    i.testAndSetOrdered(expectedValue, newValue);
+
+    i.fetchAndStoreRelaxed(newValue);
+    i.fetchAndStoreAcquire(newValue);
+    i.fetchAndStoreRelease(newValue);
+    i.fetchAndStoreOrdered(newValue);
+
+    i.fetchAndAddRelaxed(valueToAdd);
+    i.fetchAndAddAcquire(valueToAdd);
+    i.fetchAndAddRelease(valueToAdd);
+    i.fetchAndAddOrdered(valueToAdd);
+}
+
+void tst_QAtomicInt::warningFree()
+{
+    // This is a compile time check for warnings.
+    // No need for actual work here.
+
+    void (*foo)() = &warningFreeHelper;
+    (void)foo;
+}
+
+void tst_QAtomicInt::constructor_data()
+{
+    QTest::addColumn<int>("value");
+
+    QTest::newRow("0") << 31337;
+    QTest::newRow("1") << 0;
+    QTest::newRow("2") << 1;
+    QTest::newRow("3") << -1;
+    QTest::newRow("4") << 2;
+    QTest::newRow("5") << -2;
+    QTest::newRow("6") << 3;
+    QTest::newRow("7") << -3;
+    QTest::newRow("8") << INT_MAX;
+    QTest::newRow("9") << INT_MIN+1;
+}
+
+void tst_QAtomicInt::constructor()
+{
+    QFETCH(int, value);
+    QAtomicInt atomic1(value);
+    QCOMPARE(int(atomic1), value);
+    QAtomicInt atomic2 = value;
+    QCOMPARE(int(atomic2), value);
+}
+
+void tst_QAtomicInt::copy_constructor_data()
+{ constructor_data(); }
+
+void tst_QAtomicInt::copy_constructor()
+{
+    QFETCH(int, value);
+    QAtomicInt atomic1(value);
+    QCOMPARE(int(atomic1), value);
+
+    QAtomicInt atomic2(atomic1);
+    QCOMPARE(int(atomic2), value);
+    QAtomicInt atomic3 = atomic1;
+    QCOMPARE(int(atomic3), value);
+    QAtomicInt atomic4(atomic2);
+    QCOMPARE(int(atomic4), value);
+    QAtomicInt atomic5 = atomic2;
+    QCOMPARE(int(atomic5), value);
+}
+
+void tst_QAtomicInt::equality_operator_data()
+{
+    QTest::addColumn<int>("value1");
+    QTest::addColumn<int>("value2");
+    QTest::addColumn<int>("result");
+
+    QTest::newRow("success0") <<  1 <<  1 << 1;
+    QTest::newRow("success1") << -1 << -1 << 1;
+    QTest::newRow("failure0") <<  0 <<  1 << 0;
+    QTest::newRow("failure1") <<  1 <<  0 << 0;
+    QTest::newRow("failure2") <<  0 << -1 << 0;
+    QTest::newRow("failure3") << -1 <<  0 << 0;
+}
+
+void tst_QAtomicInt::equality_operator()
+{
+    QFETCH(int, value1);
+    QFETCH(int, value2);
+    QAtomicInt x = value1;
+    QTEST(x == value2 ? 1 : 0, "result");
+}
+
+void tst_QAtomicInt::inequality_operator_data()
+{
+    QTest::addColumn<int>("value1");
+    QTest::addColumn<int>("value2");
+    QTest::addColumn<int>("result");
+
+    QTest::newRow("failure0") <<  1 <<  1 << 0;
+    QTest::newRow("failure1") << -1 << -1 << 0;
+    QTest::newRow("success0") <<  0 <<  1 << 1;
+    QTest::newRow("success1") <<  1 <<  0 << 1;
+    QTest::newRow("success2") <<  0 << -1 << 1;
+    QTest::newRow("success3") << -1 <<  0 << 1;
+}
+
+void tst_QAtomicInt::inequality_operator()
+{
+    QFETCH(int, value1);
+    QFETCH(int, value2);
+    QAtomicInt x = value1;
+    QTEST(x != value2 ? 1 : 0, "result");
+}
+
+void tst_QAtomicInt::not_operator_data()
+{ constructor_data(); }
+
+void tst_QAtomicInt::not_operator()
+{
+    QFETCH(int, value);
+    QAtomicInt atomic = value;
+    QCOMPARE(!atomic, !value);
+}
+
+void tst_QAtomicInt::cast_operator_data()
+{ constructor_data(); }
+
+void tst_QAtomicInt::cast_operator()
+{
+    QFETCH(int, value);
+    QAtomicInt atomic = value;
+    int copy = atomic;
+    QCOMPARE(copy, value);
+}
+
+void tst_QAtomicInt::assignment_operator_data()
+{
+    QTest::addColumn<int>("value");
+    QTest::addColumn<int>("newval");
+
+    QTest::newRow("value0") <<  0 <<  1;
+    QTest::newRow("value1") <<  1 <<  0;
+    QTest::newRow("value2") <<  0 << -1;
+    QTest::newRow("value3") << -1 <<  0;
+    QTest::newRow("value4") << -1 <<  1;
+    QTest::newRow("value5") <<  1 << -1;
+}
+
+void tst_QAtomicInt::assignment_operator()
+{
+    QFETCH(int, value);
+    QFETCH(int, newval);
+
+    {
+        QAtomicInt atomic1 = value;
+        atomic1 = newval;
+        QCOMPARE(int(atomic1), newval);
+        atomic1 = value;
+        QCOMPARE(int(atomic1), value);
+        QAtomicInt atomic2 = newval;
+        atomic1 = atomic2;
+        QCOMPARE(atomic1, atomic2);
+    }
+}
+
+void tst_QAtomicInt::isReferenceCountingNative()
+{
+#if defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isReferenceCountingNative());
+
+#  if (defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE)     \
+       || defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE)
+    // could be either, just want to make sure the function is implemented
+    QVERIFY(QAtomicInt::isReferenceCountingNative() || !QAtomicInt::isReferenceCountingNative());
+
+#  if (defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isReferenceCountingNative());
+
+#  if (defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#else
+#  error "Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined"
+#endif
+}
+
+void tst_QAtomicInt::isReferenceCountingWaitFree()
+{
+#if defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_WAIT_FREE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isReferenceCountingWaitFree());
+
+    // enforce some invariants
+    QVERIFY(QAtomicInt::isReferenceCountingNative());
+#  if defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE)
+#    error "Reference counting cannot be wait-free and unsupported at the same time!"
+#  endif
+#else
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isReferenceCountingWaitFree());
+#endif
+}
+
+void tst_QAtomicInt::ref_data()
+{
+    QTest::addColumn<int>("value");
+    QTest::addColumn<int>("result");
+    QTest::addColumn<int>("expected");
+
+    QTest::newRow("data0") <<  0 << 1 << 1;
+    QTest::newRow("data1") << -1 << 0 << 0;
+    QTest::newRow("data2") <<  1 << 1 << 2;
+}
+
+void tst_QAtomicInt::ref()
+{
+    QFETCH(int, value);
+    QAtomicInt x = value;
+    QTEST(x.ref() ? 1 : 0, "result");
+    QTEST(int(x), "expected");
+}
+
+void tst_QAtomicInt::deref_data()
+{
+    QTest::addColumn<int>("value");
+    QTest::addColumn<int>("result");
+    QTest::addColumn<int>("expected");
+
+    QTest::newRow("data0") <<  0 << 1 << -1;
+    QTest::newRow("data1") <<  1 << 0 <<  0;
+    QTest::newRow("data2") <<  2 << 1 <<  1;
+}
+
+void tst_QAtomicInt::deref()
+{
+    QFETCH(int, value);
+    QAtomicInt x = value;
+    QTEST(x.deref() ? 1 : 0, "result");
+    QTEST(int(x), "expected");
+}
+
+void tst_QAtomicInt::isTestAndSetNative()
+{
+#if defined(Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isTestAndSetNative());
+
+#  if (defined(Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE)     \
+       || defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE)
+    // could be either, just want to make sure the function is implemented
+    QVERIFY(QAtomicInt::isTestAndSetNative() || !QAtomicInt::isTestAndSetNative());
+
+#  if (defined(Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isTestAndSetNative());
+
+#  if (defined(Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#else
+#  error "Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined"
+#endif
+}
+
+void tst_QAtomicInt::isTestAndSetWaitFree()
+{
+#if defined(Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isTestAndSetWaitFree());
+
+    // enforce some invariants
+    QVERIFY(QAtomicInt::isTestAndSetNative());
+#  if defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE)
+#    error "Reference counting cannot be wait-free and unsupported at the same time!"
+#  endif
+#else
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isTestAndSetWaitFree());
+#endif
+}
+
+void tst_QAtomicInt::testAndSet_data()
+{
+    QTest::addColumn<int>("value");
+    QTest::addColumn<int>("expected");
+    QTest::addColumn<int>("newval");
+    QTest::addColumn<int>("result");
+
+    // these should succeed
+    QTest::newRow("success0") <<         0 <<         0 <<         0 << 1;
+    QTest::newRow("success1") <<         0 <<         0 <<         1 << 1;
+    QTest::newRow("success2") <<         0 <<         0 <<        -1 << 1;
+    QTest::newRow("success3") <<         1 <<         1 <<         0 << 1;
+    QTest::newRow("success4") <<         1 <<         1 <<         1 << 1;
+    QTest::newRow("success5") <<         1 <<         1 <<        -1 << 1;
+    QTest::newRow("success6") <<        -1 <<        -1 <<         0 << 1;
+    QTest::newRow("success7") <<        -1 <<        -1 <<         1 << 1;
+    QTest::newRow("success8") <<        -1 <<        -1 <<        -1 << 1;
+    QTest::newRow("success9") << INT_MIN+1 << INT_MIN+1 << INT_MIN+1 << 1;
+    QTest::newRow("successA") << INT_MIN+1 << INT_MIN+1 <<         1 << 1;
+    QTest::newRow("successB") << INT_MIN+1 << INT_MIN+1 <<        -1 << 1;
+    QTest::newRow("successC") << INT_MAX   << INT_MAX   << INT_MAX   << 1;
+    QTest::newRow("successD") << INT_MAX   << INT_MAX   <<         1 << 1;
+    QTest::newRow("successE") << INT_MAX   << INT_MAX   <<        -1 << 1;
+
+    // these should fail
+    QTest::newRow("failure0") <<       0   <<       1   <<        ~0 << 0;
+    QTest::newRow("failure1") <<       0   <<      -1   <<        ~0 << 0;
+    QTest::newRow("failure2") <<       1   <<       0   <<        ~0 << 0;
+    QTest::newRow("failure3") <<      -1   <<       0   <<        ~0 << 0;
+    QTest::newRow("failure4") <<       1   <<      -1   <<        ~0 << 0;
+    QTest::newRow("failure5") <<      -1   <<       1   <<        ~0 << 0;
+    QTest::newRow("failure6") << INT_MIN+1 << INT_MAX   <<        ~0 << 0;
+    QTest::newRow("failure7") << INT_MAX   << INT_MIN+1 <<        ~0 << 0;
+}
+
+void tst_QAtomicInt::testAndSet()
+{
+    QFETCH(int, value);
+    QFETCH(int, expected);
+    QFETCH(int, newval);
+
+    {
+        QAtomicInt atomic = value;
+        QTEST(atomic.testAndSetRelaxed(expected, newval) ? 1 : 0, "result");
+    }
+
+    {
+        QAtomicInt atomic = value;
+        QTEST(atomic.testAndSetAcquire(expected, newval) ? 1 : 0, "result");
+    }
+
+    {
+        QAtomicInt atomic = value;
+        QTEST(atomic.testAndSetRelease(expected, newval) ? 1 : 0, "result");
+    }
+
+    {
+        QAtomicInt atomic = value;
+        QTEST(atomic.testAndSetOrdered(expected, newval) ? 1 : 0, "result");
+    }
+}
+
+void tst_QAtomicInt::isFetchAndStoreNative()
+{
+#if defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isFetchAndStoreNative());
+
+#  if (defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE)     \
+       || defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE)
+    // could be either, just want to make sure the function is implemented
+    QVERIFY(QAtomicInt::isFetchAndStoreNative() || !QAtomicInt::isFetchAndStoreNative());
+
+#  if (defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isFetchAndStoreNative());
+
+#  if (defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#else
+#  error "Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined"
+#endif
+}
+
+void tst_QAtomicInt::isFetchAndStoreWaitFree()
+{
+#if defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isFetchAndStoreWaitFree());
+
+    // enforce some invariants
+    QVERIFY(QAtomicInt::isFetchAndStoreNative());
+#  if defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE)
+#    error "Reference counting cannot be wait-free and unsupported at the same time!"
+#  endif
+#else
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isFetchAndStoreWaitFree());
+#endif
+}
+
+void tst_QAtomicInt::fetchAndStore_data()
+{
+    QTest::addColumn<int>("value");
+    QTest::addColumn<int>("newval");
+
+    QTest::newRow("data0") << 0 << 1;
+    QTest::newRow("data1") << 1 << 2;
+    QTest::newRow("data2") << 3 << 8;
+}
+
+void tst_QAtomicInt::fetchAndStore()
+{
+    QFETCH(int, value);
+    QFETCH(int, newval);
+
+    {
+        QAtomicInt atomic = value;
+        QCOMPARE(atomic.fetchAndStoreRelaxed(newval), value);
+        QCOMPARE(int(atomic), newval);
+    }
+
+    {
+        QAtomicInt atomic = value;
+        QCOMPARE(atomic.fetchAndStoreAcquire(newval), value);
+        QCOMPARE(int(atomic), newval);
+    }
+
+    {
+        QAtomicInt atomic = value;
+        QCOMPARE(atomic.fetchAndStoreRelease(newval), value);
+        QCOMPARE(int(atomic), newval);
+    }
+
+    {
+        QAtomicInt atomic = value;
+        QCOMPARE(atomic.fetchAndStoreOrdered(newval), value);
+        QCOMPARE(int(atomic), newval);
+    }
+}
+
+void tst_QAtomicInt::isFetchAndAddNative()
+{
+#if defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isFetchAndAddNative());
+
+#  if (defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE)     \
+       || defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE)
+    // could be either, just want to make sure the function is implemented
+    QVERIFY(QAtomicInt::isFetchAndAddNative() || !QAtomicInt::isFetchAndAddNative());
+
+#  if (defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#elif defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE)
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isFetchAndAddNative());
+
+#  if (defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE) \
+       || defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE))
+#    error "Define only one of Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE"
+#  endif
+#else
+#  error "Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined"
+#endif
+}
+
+void tst_QAtomicInt::isFetchAndAddWaitFree()
+{
+#if defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_WAIT_FREE)
+    // the runtime test should say the same thing
+    QVERIFY(QAtomicInt::isFetchAndAddWaitFree());
+
+    // enforce some invariants
+    QVERIFY(QAtomicInt::isFetchAndAddNative());
+#  if defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE)
+#    error "Reference counting cannot be wait-free and unsupported at the same time!"
+#  endif
+#else
+    // the runtime test should say the same thing
+    QVERIFY(!QAtomicInt::isFetchAndAddWaitFree());
+#endif
+}
+
+void tst_QAtomicInt::fetchAndAdd_data()
+{
+    QTest::addColumn<int>("value1");
+    QTest::addColumn<int>("value2");
+
+    QTest::newRow("0+1") << 0 << 1;
+    QTest::newRow("1+0") << 1 << 0;
+    QTest::newRow("1+2") << 1 << 2;
+    QTest::newRow("2+1") << 2 << 1;
+    QTest::newRow("10+21") << 10 << 21;
+    QTest::newRow("31+40") << 31 << 40;
+    QTest::newRow("51+62") << 51 << 62;
+    QTest::newRow("72+81") << 72 << 81;
+    QTest::newRow("810+721") << 810 << 721;
+    QTest::newRow("631+540") << 631 << 540;
+    QTest::newRow("451+362") << 451 << 362;
+    QTest::newRow("272+181") << 272 << 181;
+    QTest::newRow("1810+8721") << 1810 << 8721;
+    QTest::newRow("3631+6540") << 3631 << 6540;
+    QTest::newRow("5451+4362") << 5451 << 4362;
+    QTest::newRow("7272+2181") << 7272 << 2181;
+
+    QTest::newRow("0+-1") << 0 << -1;
+    QTest::newRow("1+0") << 1 << 0;
+    QTest::newRow("1+-2") << 1 << -2;
+    QTest::newRow("2+-1") << 2 << -1;
+    QTest::newRow("10+-21") << 10 << -21;
+    QTest::newRow("31+-40") << 31 << -40;
+    QTest::newRow("51+-62") << 51 << -62;
+    QTest::newRow("72+-81") << 72 << -81;
+    QTest::newRow("810+-721") << 810 << -721;
+    QTest::newRow("631+-540") << 631 << -540;
+    QTest::newRow("451+-362") << 451 << -362;
+    QTest::newRow("272+-181") << 272 << -181;
+    QTest::newRow("1810+-8721") << 1810 << -8721;
+    QTest::newRow("3631+-6540") << 3631 << -6540;
+    QTest::newRow("5451+-4362") << 5451 << -4362;
+    QTest::newRow("7272+-2181") << 7272 << -2181;
+
+    QTest::newRow("0+1") << 0 << 1;
+    QTest::newRow("-1+0") << -1 << 0;
+    QTest::newRow("-1+2") << -1 << 2;
+    QTest::newRow("-2+1") << -2 << 1;
+    QTest::newRow("-10+21") << -10 << 21;
+    QTest::newRow("-31+40") << -31 << 40;
+    QTest::newRow("-51+62") << -51 << 62;
+    QTest::newRow("-72+81") << -72 << 81;
+    QTest::newRow("-810+721") << -810 << 721;
+    QTest::newRow("-631+540") << -631 << 540;
+    QTest::newRow("-451+362") << -451 << 362;
+    QTest::newRow("-272+181") << -272 << 181;
+    QTest::newRow("-1810+8721") << -1810 << 8721;
+    QTest::newRow("-3631+6540") << -3631 << 6540;
+    QTest::newRow("-5451+4362") << -5451 << 4362;
+    QTest::newRow("-7272+2181") << -7272 << 2181;
+}
+
+void tst_QAtomicInt::fetchAndAdd()
+{
+    QFETCH(int, value1);
+    QFETCH(int, value2);
+    int result;
+
+    {
+        QAtomicInt atomic = value1;
+        result = atomic.fetchAndAddRelaxed(value2);
+        QCOMPARE(result, value1);
+        QCOMPARE(int(atomic), value1 + value2);
+    }
+
+    {
+        QAtomicInt atomic = value1;
+        result = atomic.fetchAndAddAcquire(value2);
+        QCOMPARE(result, value1);
+        QCOMPARE(int(atomic), value1 + value2);
+    }
+
+    {
+        QAtomicInt atomic = value1;
+        result = atomic.fetchAndAddRelease(value2);
+        QCOMPARE(result, value1);
+        QCOMPARE(int(atomic), value1 + value2);
+    }
+
+    {
+        QAtomicInt atomic = value1;
+        result = atomic.fetchAndAddOrdered(value2);
+        QCOMPARE(result, value1);
+        QCOMPARE(int(atomic), value1 + value2);
+    }
+}
+
+void tst_QAtomicInt::testAndSet_loop()
+{
+    QTime stopWatch;
+    stopWatch.start();
+
+    int iterations = 10000000;
+
+    QAtomicInt val=0;
+    for (int i = 0; i < iterations; ++i) {
+        QVERIFY(val.testAndSetRelaxed(val, val+1));
+        if ((i % 1000) == 999) {
+            if (stopWatch.elapsed() > 60 * 1000) {
+                // This test shouldn't run for more than two minutes.
+                qDebug("Interrupted test after %d iterations (%.2f iterations/sec)",
+                       i, (i * 1000.0) / double(stopWatch.elapsed()));
+                break;
+            }
+        }
+    }
+}
+
+void tst_QAtomicInt::fetchAndAdd_loop()
+{
+    int iterations = 10000000;
+#if defined (Q_OS_HPUX)
+    iterations = 1000000;
+#endif
+
+    QAtomicInt val=0;
+    for (int i = 0; i < iterations; ++i) {
+        const int prev = val.fetchAndAddRelaxed(1);
+        QCOMPARE(prev, int(val) -1);
+    }
+}
+
+class FetchAndAddThread : public QThread
+{
+public:
+    void run()
+    {
+
+        for (int i = 0; i < iterations; ++i)
+            val->fetchAndAddAcquire(1);
+
+        for (int i = 0; i < iterations; ++i)
+            val->fetchAndAddAcquire(-1);
+
+    }
+QAtomicInt *val;
+int iterations;
+};
+
+
+void tst_QAtomicInt::fetchAndAdd_threadedLoop()
+{
+    QAtomicInt val;
+    FetchAndAddThread t1;
+    t1.val = &val;
+    t1.iterations = 1000000;
+
+    FetchAndAddThread t2;
+    t2.val = &val;
+    t2.iterations = 2000000;
+
+    t1.start();
+    t2.start();
+    t1.wait();
+    t2.wait();
+
+    QCOMPARE(int(val), 0);
+}
+
+QTEST_MAIN(tst_QAtomicInt)
+#include "tst_qatomicint.moc"