1 /*
2 * Copyright (C) 2018 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 "src/profiling/memory/client.h"
18
19 #include "gtest/gtest.h"
20 #include "perfetto/base/thread_utils.h"
21 #include "perfetto/base/unix_socket.h"
22
23 #include <thread>
24
25 namespace perfetto {
26 namespace profiling {
27 namespace {
28
TEST(ClientTest,GetThreadStackBase)29 TEST(ClientTest, GetThreadStackBase) {
30 std::thread th([] {
31 const char* stackbase = GetThreadStackBase();
32 ASSERT_NE(stackbase, nullptr);
33 // The implementation assumes the stack grows from higher addresses to
34 // lower. We will need to rework once we encounter architectures where the
35 // stack grows the other way.
36 EXPECT_GT(stackbase, __builtin_frame_address(0));
37 });
38 th.join();
39 }
40
TEST(ClientTest,IsMainThread)41 TEST(ClientTest, IsMainThread) {
42 // Our code relies on the fact that getpid() == GetThreadId() if this
43 // process/thread is the main thread of the process. This test ensures that is
44 // true.
45 auto pid = getpid();
46 auto main_thread_id = base::GetThreadId();
47 EXPECT_EQ(pid, main_thread_id);
48 std::thread th(
49 [main_thread_id] { EXPECT_NE(main_thread_id, base::GetThreadId()); });
50 th.join();
51 }
52
53 } // namespace
54 } // namespace profiling
55 } // namespace perfetto
56