| // 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) { |
| int64_t start_time = OS::GetCurrentTimeMillis(); |
| int64_t sleep_time = 702; |
| OS::Sleep(sleep_time); |
| int64_t delta = OS::GetCurrentTimeMillis() - start_time; |
| const int kAcceptableSleepWakeupJitter = 200; // Measured in milliseconds. |
| EXPECT_GE(delta, sleep_time - kAcceptableSleepWakeupJitter); |
| EXPECT_LE(delta, sleep_time + kAcceptableSleepWakeupJitter); |
| } |
| |
| |
| 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) { |
| int width = kMaxInt32; |
| int num = 7; |
| OS::SNPrint(NULL, 0, "%*d%*d", width, num, width, num); |
| } |
| |
| |
| UNIT_TEST_CASE(OsFuncs) { |
| EXPECT(Utils::IsPowerOfTwo(OS::ActivationFrameAlignment())); |
| EXPECT(Utils::IsPowerOfTwo(OS::PreferredCodeAlignment())); |
| int procs = OS::NumberOfAvailableProcessors(); |
| EXPECT_LE(1, procs); |
| EXPECT_LT(0U, OS::GetStackSizeLimit()); |
| } |
| |
| |
| UNIT_TEST_CASE(OSAlignedAllocate) { |
| // TODO(johnmccutchan): Test other alignments, once we support |
| // alignments != 16 on Mac. |
| void* p1 = OS::AlignedAllocate(1023, 16); |
| void* p2 = OS::AlignedAllocate(1025, 16); |
| void* p3 = OS::AlignedAllocate(1025, 16); |
| void* p4 = OS::AlignedAllocate(1, 16); |
| void* p5 = OS::AlignedAllocate(2, 16); |
| void* p6 = OS::AlignedAllocate(4, 16); |
| EXPECT((reinterpret_cast<intptr_t>(p1) & 15) == 0); |
| EXPECT((reinterpret_cast<intptr_t>(p2) & 15) == 0); |
| EXPECT((reinterpret_cast<intptr_t>(p3) & 15) == 0); |
| EXPECT((reinterpret_cast<intptr_t>(p4) & 15) == 0); |
| EXPECT((reinterpret_cast<intptr_t>(p5) & 15) == 0); |
| EXPECT((reinterpret_cast<intptr_t>(p6) & 15) == 0); |
| OS::AlignedFree(p1); |
| OS::AlignedFree(p2); |
| OS::AlignedFree(p3); |
| OS::AlignedFree(p4); |
| OS::AlignedFree(p5); |
| OS::AlignedFree(p6); |
| } |
| |
| } // namespace dart |