Port tests away from using q{Set}GlobalQHashSeed

These functions are marked as deprecated in future Qt releases.

Task-number: QTBUG-104858
Change-Id: I25d2932455d8c9e3e2d722b1c48fc2cfa2d1e679
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

tests/auto/corelib/tools/qhash/tst_qhash.cpp

@@ -904,16 +904,31 @@ class QGlobalQHashSeedResetter
     int oldSeed;
 public:
     // not entirely correct (may lost changes made by another thread between the query
-    // of the old and the setting of the new seed), but qSetGlobalQHashSeed doesn't
+    // of the old and the setting of the new seed), but setHashSeed() can't
     // return the old value, so this is the best we can do:
     explicit QGlobalQHashSeedResetter(int newSeed)
-        : oldSeed(qGlobalQHashSeed())
+        : oldSeed(getHashSeed())
     {
-        qSetGlobalQHashSeed(newSeed);
+        setHashSeed(newSeed);
     }
     ~QGlobalQHashSeedResetter()
     {
-        qSetGlobalQHashSeed(oldSeed);
+        setHashSeed(oldSeed);
+    }
+
+private:
+    // The functions are implemented to replace the deprecated
+    // qGlobalQHashSeed() and qSetGlobalQHashSeed()
+    static int getHashSeed()
+    {
+        return int(QHashSeed::globalSeed() & INT_MAX);
+    }
+    static void setHashSeed(int seed)
+    {
+        if (seed == 0)
+            QHashSeed::setDeterministicGlobalSeed();
+        else
+            QHashSeed::resetRandomGlobalSeed();
     }
 };
 

tests/auto/corelib/tools/qhashfunctions/tst_qhashfunctions.cpp

@@ -53,7 +53,9 @@ private Q_SLOTS:
     void stdPair_string_pairIntInt()    { stdPair_template(QString("Hello"), std::make_pair(42, -47)); } // QTBUG-92910
     void stdPair_int_pairIntPairIntInt() { stdPair_template(1, std::make_pair(2, std::make_pair(3, 4))); }
 
+#if QT_DEPRECATED_SINCE(6, 6)
     void setGlobalQHashSeed();
+#endif
 };
 
 void tst_QHashFunctions::consistent()
@@ -370,8 +372,10 @@ void tst_QHashFunctions::stdPair_template(const T1 &t1, const T2 &t2)
     QCOMPARE(qHash(vpair, seed), qHash(vpair, seed));
 }
 
+#if QT_DEPRECATED_SINCE(6, 6)
 void tst_QHashFunctions::setGlobalQHashSeed()
 {
+QT_WARNING_PUSH QT_WARNING_DISABLE_DEPRECATED
     // Setter works as advertised
     qSetGlobalQHashSeed(0);
     QCOMPARE(qGlobalQHashSeed(), 0);
@@ -384,7 +388,9 @@ void tst_QHashFunctions::setGlobalQHashSeed()
     // Reset works as advertised
     qSetGlobalQHashSeed(-1);
     QVERIFY(qGlobalQHashSeed() > 0);
+QT_WARNING_POP
 }
+#endif // QT_DEPRECATED_SINCE(6, 6)
 
 QTEST_APPLESS_MAIN(tst_QHashFunctions)
 #include "tst_qhashfunctions.moc"

tests/auto/corelib/tools/qset/tst_qset.cpp

@@ -1039,14 +1039,14 @@ void tst_QSet::qhash()
     //
     {
         // create some deterministic initial state:
-        qSetGlobalQHashSeed(0);
+        QHashSeed::setDeterministicGlobalSeed();
 
         QSet<int> s1;
         s1.reserve(4);
         s1 << 400 << 300 << 200 << 100;
 
         // also change the seed:
-        qSetGlobalQHashSeed(0x10101010);
+        QHashSeed::resetRandomGlobalSeed();
 
         QSet<int> s2;
         s2.reserve(100); // provoke different bucket counts
@@ -1087,7 +1087,7 @@ void tst_QSet::intersects()
     s1 << 200;
     QVERIFY(s1.intersects(s2));
 
-    qSetGlobalQHashSeed(0x10101010);
+    QHashSeed::resetRandomGlobalSeed();
     QSet<int> s3;
     s3 << 500;
     QVERIFY(!s1.intersects(s3));

tests/auto/dbus/qdbusxmlparser/tst_qdbusxmlparser.cpp

@@ -34,8 +34,8 @@ private slots:
 
 void tst_QDBusXmlParser::initTestCase()
 {
-    // Always initialize the hash seed to 0 to get reliable test results
+    // Always initialize the hash seed with a known value to get reliable test results
-    qSetGlobalQHashSeed(0);
+    QHashSeed::setDeterministicGlobalSeed();
 }
 
 void tst_QDBusXmlParser::parsing_data()

tests/baseline/painting/tst_baseline_painting.cpp

@@ -469,7 +469,8 @@ QTEST_MAIN(tst_Lancelot)
 
 int main(int argc, char *argv[])
 {
-    qSetGlobalQHashSeed(0);   // Avoid rendering variations caused by QHash randomization
+    // Avoid rendering variations caused by QHash randomization
+    QHashSeed::setDeterministicGlobalSeed();
 
     QBaselineTest::handleCmdLineArgs(&argc, &argv);
     return _realmain(argc, argv);

tests/baseline/stylesheet/tst_baseline_stylesheet.cpp

@@ -198,7 +198,8 @@ QTEST_MAIN(tst_Stylesheet)
 
 int main(int argc, char *argv[])
 {
-    qSetGlobalQHashSeed(0);   // Avoid rendering variations caused by QHash randomization
+    // Avoid rendering variations caused by QHash randomization
+    QHashSeed::setDeterministicGlobalSeed();
 
     QBaselineTest::handleCmdLineArgs(&argc, &argv);
     return _realmain(argc, argv);

tests/baseline/text/tst_baseline_text.cpp

@@ -88,7 +88,8 @@ QTEST_MAIN(tst_Text)
 
 int main(int argc, char *argv[])
 {
-    qSetGlobalQHashSeed(0);   // Avoid rendering variations caused by QHash randomization
+    // Avoid rendering variations caused by QHash randomization
+    QHashSeed::setDeterministicGlobalSeed();
 
     QBaselineTest::handleCmdLineArgs(&argc, &argv);
     return _realmain(argc, argv);

tests/baseline/widgets/tst_baseline_widgets.cpp

@@ -1095,7 +1095,8 @@ QTEST_MAIN(tst_Widgets)
 
 int main(int argc, char *argv[])
 {
-    qSetGlobalQHashSeed(0);   // Avoid rendering variations caused by QHash randomization
+    // Avoid rendering variations caused by QHash randomization
+    QHashSeed::setDeterministicGlobalSeed();
 
     QBaselineTest::handleCmdLineArgs(&argc, &argv);
     return _realmain(argc, argv);