Added new type of unit test, RAW_UNIT_TEST_CASE, which is used for tests that can be flaky if run w…

runtime/vm/os_test.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/assert.h"
 #include "platform/utils.h"
 #include "vm/globals.h"
 #include "vm/os.h"
 #include "vm/unit_test.h"
 
 namespace dart {
 
-UNIT_TEST_CASE(Sleep) {
+VM_UNIT_TEST_CASE(Sleep) {
   // All times measured in microseconds.
   int64_t start_time = OS::GetCurrentMonotonicMicros();
   int64_t sleep_time = 702000;
   OS::SleepMicros(sleep_time);
   int64_t delta = OS::GetCurrentMonotonicMicros() - start_time;
   const int kAcceptableSleepWakeupJitter = 200000;
   EXPECT_GE(delta, sleep_time - kAcceptableSleepWakeupJitter);
   EXPECT_LE(delta, sleep_time + kAcceptableSleepWakeupJitter);
 }
 
 
-UNIT_TEST_CASE(SNPrint) {
+VM_UNIT_TEST_CASE(SNPrint) {
   char buffer[256];
   int length;
   length = OS::SNPrint(buffer, 10, "%s", "foo");
   EXPECT_EQ(3, length);
   EXPECT_STREQ("foo", buffer);
   length = OS::SNPrint(buffer, 3, "%s", "foo");
   EXPECT_EQ(3, length);
   EXPECT_STREQ("fo", buffer);
   length = OS::SNPrint(buffer, 256, "%s%c%d", "foo", 'Z', 42);
   EXPECT_EQ(6, length);
   EXPECT_STREQ("fooZ42", buffer);
   length = OS::SNPrint(NULL, 0, "foo");
   EXPECT_EQ(3, length);
 }
 
 
 // This test is expected to crash when it runs.
-UNIT_TEST_CASE(SNPrint_BadArgs) {
+VM_UNIT_TEST_CASE(SNPrint_BadArgs) {
   int width = kMaxInt32;
   int num = 7;
   OS::SNPrint(NULL, 0, "%*d%*d", width, num, width, num);
 }
 
 
-UNIT_TEST_CASE(OsFuncs) {
+VM_UNIT_TEST_CASE(OsFuncs) {
   EXPECT(Utils::IsPowerOfTwo(OS::ActivationFrameAlignment()));
   EXPECT(Utils::IsPowerOfTwo(OS::PreferredCodeAlignment()));
   int procs = OS::NumberOfAvailableProcessors();
   EXPECT_LE(1, procs);
 }
 
 }  // namespace dart