blob: d7239a6fbc5ffa2fba10499fb515910ee4f5090f [file] [log] [blame]
// 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);
}
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