base/win/startup_information_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <windows.h>
   6
   7 #include <string>
   8
   9 #include "base/command_line.h"
  10 #include "base/test/multiprocess_test.h"
  11 #include "base/win/scoped_handle.h"
  12 #include "base/win/scoped_process_information.h"
  13 #include "base/win/startup_information.h"
  14 #include "base/win/windows_version.h"
  15 #include "testing/multiprocess_func_list.h"
  16
  17 const wchar_t kSectionName[] = L"EventTestSection";
  18 const size_t kSectionSize = 4096;
  19
  20 MULTIPROCESS_TEST_MAIN(FireInheritedEvents) {
  21   HANDLE section = ::OpenFileMappingW(PAGE_READWRITE, false, kSectionName);
  22   HANDLE* events = reinterpret_cast<HANDLE*>(::MapViewOfFile(section,
  23       PAGE_READWRITE, 0, 0, kSectionSize));
  24   // This event should not be valid because it wasn't explicitly inherited.
  25   if (::SetEvent(events[1]))
  26     return -1;
  27   // This event should be valid because it was explicitly inherited.
  28   if (!::SetEvent(events[0]))
  29     return -1;
  30
  31   return 0;
  32 }
  33
  34 class StartupInformationTest : public base::MultiProcessTest {};
  35
  36 // Verify that only the explicitly specified event is inherited.
  37 TEST_F(StartupInformationTest, InheritStdOut) {
  38   if (base::win::GetVersion() < base::win::VERSION_VISTA)
  39     return;
  40
  41   base::win::StartupInformation startup_info;
  42
  43   HANDLE section = ::CreateFileMappingW(INVALID_HANDLE_VALUE, NULL,
  44                                         PAGE_READWRITE, 0, kSectionSize,
  45                                         kSectionName);
  46   ASSERT_TRUE(section);
  47
  48   HANDLE* events = reinterpret_cast<HANDLE*>(::MapViewOfFile(section,
  49       FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, kSectionSize));
  50
  51   // Make two inheritable events.
  52   SECURITY_ATTRIBUTES security_attributes = { sizeof(security_attributes),
  53                                               NULL, true };
  54   events[0] = ::CreateEvent(&security_attributes, false, false, NULL);
  55   ASSERT_TRUE(events[0]);
  56   events[1] = ::CreateEvent(&security_attributes, false, false, NULL);
  57   ASSERT_TRUE(events[1]);
  58
  59   ASSERT_TRUE(startup_info.InitializeProcThreadAttributeList(1));
  60   ASSERT_TRUE(startup_info.UpdateProcThreadAttribute(
  61       PROC_THREAD_ATTRIBUTE_HANDLE_LIST, &events[0],
  62       sizeof(events[0])));
  63
  64   std::wstring cmd_line =
  65       MakeCmdLine("FireInheritedEvents").GetCommandLineString();
  66
  67   PROCESS_INFORMATION temp_process_info = {};
  68   ASSERT_TRUE(::CreateProcess(NULL, &cmd_line[0],
  69                               NULL, NULL, true, EXTENDED_STARTUPINFO_PRESENT,
  70                               NULL, NULL, startup_info.startup_info(),
  71                               &temp_process_info)) << ::GetLastError();
  72   base::win::ScopedProcessInformation process_info(temp_process_info);
  73
  74   // Only the first event should be signalled
  75   EXPECT_EQ(WAIT_OBJECT_0, ::WaitForMultipleObjects(2, events, false,
  76                                                     4000));
  77 }
  78