unistd_test.cpp revision 428f5567be25b8090e3dd72e2d3d337c305b514e 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <gtest/gtest.h>
18
19#include <stdint.h>
20#include <unistd.h>
21
22TEST(unistd, sysconf_SC_MONOTONIC_CLOCK) {
23  ASSERT_GT(sysconf(_SC_MONOTONIC_CLOCK), 0);
24}
25
26TEST(unistd, sbrk) {
27  void* initial_break = sbrk(0);
28
29  void* new_break = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(initial_break) + 2000);
30  ASSERT_EQ(0, brk(new_break));
31
32  void* final_break = sbrk(0);
33  ASSERT_EQ(final_break, new_break);
34}
35