diff -r 5dc02b23752f -r 3e2da88830cd tests/auto/quuid/tst_quuid.cpp
--- a/tests/auto/quuid/tst_quuid.cpp	Tue Jul 06 15:10:48 2010 +0300
+++ b/tests/auto/quuid/tst_quuid.cpp	Wed Aug 18 10:37:55 2010 +0300
@@ -73,6 +73,7 @@
     void versions();
 
     void threadUniqueness();
+    void processUniqueness();
 
 public:
     // Variables
@@ -196,5 +197,33 @@
     qDeleteAll(threads);
 }
 
+void tst_QUuid::processUniqueness()
+{
+    QProcess process;
+    QString processOneOutput;
+    QString processTwoOutput;
+
+    // Start it once
+#ifdef Q_OS_MAC
+    process.start("testProcessUniqueness/testProcessUniqueness.app");
+#else
+    process.start("testProcessUniqueness/testProcessUniqueness");
+#endif
+    QVERIFY(process.waitForFinished());
+    processOneOutput = process.readAllStandardOutput();
+
+    // Start it twice
+#ifdef Q_OS_MAC
+    process.start("testProcessUniqueness/testProcessUniqueness.app");
+#else
+    process.start("testProcessUniqueness/testProcessUniqueness");
+#endif
+    QVERIFY(process.waitForFinished());
+    processTwoOutput = process.readAllStandardOutput();
+
+    // They should be *different*!
+    QVERIFY(processOneOutput != processTwoOutput);
+}
+
 QTEST_MAIN(tst_QUuid)
 #include "tst_quuid.moc"