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672c872589
This upstreams part of
00a0654929.
The gmock_main and gtest_main test launchers detect via a
CRASHPAD_IN_CHROMIUM macro that they are building as part of Chromium,
and use Chromium’s custom test launcher rather than gtest’s
RUN_ALL_TESTS(). This enables parallelism, sharding, and integration
with Swarming.
WinMultiprocess-based tests are not compatible with this test launcher
or with the Swarming test design, and must be disabled when
CRASHPAD_IN_CHROMIUM is set. This is covered by
https://crashpad.chromium.org/bug/205.
CRASHPAD_IN_CHROMIUM is never defined during Crashpad’s own standalone
build, it’s only defined when building in Chromium.
Change-Id: I969c5d376f86ab4b3f4cc85c97d4452b53b35063
Reviewed-on: https://chromium-review.googlesource.com/740988
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
126 lines
3.9 KiB
C++
126 lines
3.9 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "util/win/scoped_process_suspend.h"
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#include <stddef.h>
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#include <tlhelp32.h>
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#include <algorithm>
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#include <vector>
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#include "gtest/gtest.h"
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#include "test/errors.h"
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#include "test/win/win_child_process.h"
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#include "util/win/xp_compat.h"
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namespace crashpad {
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namespace test {
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namespace {
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// There is no per-process suspend count on Windows, only a per-thread suspend
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// count. NtSuspendProcess just suspends all threads of a given process. So,
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// verify that all thread's suspend counts match the desired suspend count.
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bool SuspendCountMatches(HANDLE process, DWORD desired_suspend_count) {
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DWORD process_id = GetProcessId(process);
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ScopedKernelHANDLE snapshot(CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0));
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if (!snapshot.is_valid()) {
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ADD_FAILURE() << ErrorMessage("CreateToolhelp32Snapshot");
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return false;
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}
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THREADENTRY32 te;
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te.dwSize = sizeof(te);
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BOOL ret = Thread32First(snapshot.get(), &te);
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if (!ret) {
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ADD_FAILURE() << ErrorMessage("Thread32First");
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return false;
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}
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do {
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if (te.dwSize >= offsetof(THREADENTRY32, th32OwnerProcessID) +
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sizeof(te.th32OwnerProcessID) &&
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te.th32OwnerProcessID == process_id) {
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ScopedKernelHANDLE thread(
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OpenThread(kXPThreadAllAccess, false, te.th32ThreadID));
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EXPECT_TRUE(thread.is_valid()) << ErrorMessage("OpenThread");
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DWORD result = SuspendThread(thread.get());
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EXPECT_NE(result, static_cast<DWORD>(-1))
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<< ErrorMessage("SuspendThread");
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if (result != static_cast<DWORD>(-1)) {
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EXPECT_NE(ResumeThread(thread.get()), static_cast<DWORD>(-1))
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<< ErrorMessage("ResumeThread");
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}
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if (result != desired_suspend_count)
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return false;
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}
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te.dwSize = sizeof(te);
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} while (Thread32Next(snapshot.get(), &te));
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return true;
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}
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class ScopedProcessSuspendTest final : public WinChildProcess {
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public:
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ScopedProcessSuspendTest() : WinChildProcess() {}
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~ScopedProcessSuspendTest() {}
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private:
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int Run() override {
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char c;
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// Wait for notification from parent.
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EXPECT_TRUE(LoggingReadFileExactly(ReadPipeHandle(), &c, sizeof(c)));
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EXPECT_EQ(c, ' ');
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return EXIT_SUCCESS;
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}
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DISALLOW_COPY_AND_ASSIGN(ScopedProcessSuspendTest);
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};
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// https://crashpad.chromium.org/bug/205
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#if defined(CRASHPAD_IN_CHROMIUM)
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#define MAYBE_ScopedProcessSuspend DISABLED_ScopedProcessSuspend
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#else // CRASHPAD_IN_CHROMIUM
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#define MAYBE_ScopedProcessSuspend ScopedProcessSuspend
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#endif // CRASHPAD_IN_CHROMIUM
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TEST(ScopedProcessSuspend, MAYBE_ScopedProcessSuspend) {
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WinChildProcess::EntryPoint<ScopedProcessSuspendTest>();
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std::unique_ptr<WinChildProcess::Handles> handles = WinChildProcess::Launch();
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EXPECT_TRUE(SuspendCountMatches(handles->process.get(), 0));
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{
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ScopedProcessSuspend suspend0(handles->process.get());
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EXPECT_TRUE(SuspendCountMatches(handles->process.get(), 1));
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{
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ScopedProcessSuspend suspend1(handles->process.get());
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EXPECT_TRUE(SuspendCountMatches(handles->process.get(), 2));
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}
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EXPECT_TRUE(SuspendCountMatches(handles->process.get(), 1));
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}
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EXPECT_TRUE(SuspendCountMatches(handles->process.get(), 0));
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// Tell the child it's OK to terminate.
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char c = ' ';
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EXPECT_TRUE(WriteFile(handles->write.get(), &c, sizeof(c)));
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}
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} // namespace
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} // namespace test
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} // namespace crashpad
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