Bug 1125559 - Move TestThreadPool.cpp to gtest and enable it; r=froydnj

--HG--
rename : xpcom/tests/TestThreadPool.cpp => xpcom/tests/gtest/TestThreadPool.cpp
extra : amend_source : 9d779a219338a8cbf854af28070ddc5559d28d2b
extra : histedit_source : 59dd08d1722b1fe621f3d5070b64d791012fa026%2C5231f875b1e958f393079ac9258a2d3812a1feb1

xpcom/tests/gtest/TestThreadPool.cpp

@@ -12,51 +12,49 @@
 #include "nsComponentManagerUtils.h"
 #include "nsCOMPtr.h"
 #include "nsIRunnable.h"
+#include "mozilla/Atomics.h"
+#include "gtest/gtest.h"
 
-class Task : public nsIRunnable
+class Task MOZ_FINAL : public nsIRunnable
 {
 public:
   NS_DECL_THREADSAFE_ISUPPORTS
 
-  Task(int i) : mIndex(i) {}
+  explicit Task(int i) : mIndex(i) {}
 
-  NS_IMETHOD Run()
+  NS_IMETHOD Run() MOZ_OVERRIDE
   {
     printf("###(%d) running from thread: %p\n", mIndex, (void *) PR_GetCurrentThread());
     int r = (int) ((float) rand() * 200 / RAND_MAX);
     PR_Sleep(PR_MillisecondsToInterval(r));
     printf("###(%d) exiting from thread: %p\n", mIndex, (void *) PR_GetCurrentThread());
+    ++sCount;
     return NS_OK;
   }
 
+  static mozilla::Atomic<int> sCount;
+
 private:
+  ~Task() {}
+
   int mIndex;
 };
 NS_IMPL_ISUPPORTS(Task, nsIRunnable)
 
-static nsresult
-RunTests()
+mozilla::Atomic<int> Task::sCount;
+
+TEST(ThreadPool, Main)
 {
   nsCOMPtr<nsIThreadPool> pool = do_CreateInstance(NS_THREADPOOL_CONTRACTID);
-  NS_ENSURE_STATE(pool);
+  EXPECT_TRUE(pool);
 
   for (int i = 0; i < 100; ++i) {
     nsCOMPtr<nsIRunnable> task = new Task(i);
-    NS_ENSURE_TRUE(task, NS_ERROR_OUT_OF_MEMORY);
+    EXPECT_TRUE(task);
 
     pool->Dispatch(task, NS_DISPATCH_NORMAL);
   }
 
   pool->Shutdown();
-  return NS_OK;
-}
-
-int
-main(int argc, char **argv)
-{
-  if (NS_FAILED(NS_InitXPCOM2(nullptr, nullptr, nullptr)))
-    return -1;
-  RunTests();
-  NS_ShutdownXPCOM(nullptr);
-  return 0;
+  EXPECT_EQ(Task::sCount, 100);
 }

xpcom/tests/gtest/moz.build

@@ -14,6 +14,7 @@ UNIFIED_SOURCES += [
     'TestStorageStream.cpp',
     'TestStrings.cpp',
     'TestSynchronization.cpp',
+    'TestThreadPool.cpp',
 ]
 
 FINAL_LIBRARY = 'xul-gtest'

xpcom/tests/moz.build

@@ -80,7 +80,6 @@ if CONFIG['MOZ_MEMORY']:
 
 # XXX Make these tests work in libxul builds.
 #CPP_UNIT_TESTS += [
-#    'TestThreadPool',
 #    'TestThreads',
 #    'TestTimeStamp',
 #    'TestXPIDLString',