tst_QThreadPool: simplify cancel()

Instead of allocating a statically-sized array on the heap,
use an automatic C array instead.

Replace some magic numbers with named constants.

Change-Id: I17d29a76a67c4a413453ac26a5dee8cd54a8a37d
Reviewed-by: David Faure <david.faure@kdab.com>
(cherry picked from commit 8087ea67b1457db5da5a641628a11a84a3a119f2)
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
index f4f482027d..3396e268a2 100644
--- a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
+++ b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp
@@ -985,12 +985,16 @@ void tst_QThreadPool::cancel()
             count.ref();
         }
     };
-    typedef BlockingRunnable* BlockingRunnablePtr;
+
+    enum {
+        MaxThreadCount = 3,
+        OverProvisioning = 2,
+        runs = MaxThreadCount * OverProvisioning
+    };
 
     QThreadPool threadPool;
-    threadPool.setMaxThreadCount(3);
-    int runs = 2 * threadPool.maxThreadCount();
-    BlockingRunnablePtr* runnables = new BlockingRunnablePtr[runs];
+    threadPool.setMaxThreadCount(MaxThreadCount);
+    BlockingRunnable *runnables[runs];
     count.store(0);
     QAtomicInt dtorCounter = 0;
     QAtomicInt runCounter = 0;
@@ -1013,7 +1017,6 @@ void tst_QThreadPool::cancel()
     QCOMPARE(dtorCounter.load(), runs - 2);
     delete runnables[0]; //if the pool deletes them then we'll get double-free crash
     delete runnables[runs-1];
-    delete[] runnables;
 }
 
 void tst_QThreadPool::destroyingWaitsForTasksToFinish()