Fix ProcessUtilTests for android.

base/process_util_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #define _CRT_SECURE_NO_WARNINGS
 
 #include <limits>
 
 #include "base/command_line.h"
 #include "base/debug/alias.h"
@@ skipping 94 matching lines @@
     waited += kInterval;
   } while (status == base::TERMINATION_STATUS_STILL_RUNNING &&
            waited.InMilliseconds() < TestTimeouts::action_max_timeout_ms());
 
   return status;
 }
 
 }  // namespace
 
 class ProcessUtilTest : public base::MultiProcessTest {
+ public:
 #if defined(OS_POSIX)
- public:
   // Spawn a child process that counts how many file descriptors are open.
   int CountOpenFDsInChild();
 #endif
+  // Converts the filename to a platform specific filepath.
+  // On Android files can not be created in arbitrary directories.
+  static std::string GetSignalFilePath(const char* filename);
 };
 
+std::string ProcessUtilTest::GetSignalFilePath(const char* filename) {
+#if !defined(OS_ANDROID)
+  return filename;
+#else
+  FilePath tmp_dir;
+  PathService::Get(base::DIR_CACHE, &tmp_dir);
+  tmp_dir = tmp_dir.Append(filename);
+  return tmp_dir.value();
+#endif
+}
+
 MULTIPROCESS_TEST_MAIN(SimpleChildProcess) {
   return 0;
 }
 
 TEST_F(ProcessUtilTest, SpawnChild) {
   base::ProcessHandle handle = this->SpawnChild("SimpleChildProcess", false);
   ASSERT_NE(base::kNullProcessHandle, handle);
   EXPECT_TRUE(base::WaitForSingleProcess(
                   handle, TestTimeouts::action_max_timeout_ms()));
   base::CloseProcessHandle(handle);
 }
 
 MULTIPROCESS_TEST_MAIN(SlowChildProcess) {
-  WaitToDie(kSignalFileSlow);
+  WaitToDie(ProcessUtilTest::GetSignalFilePath(kSignalFileSlow).c_str());
   return 0;
 }
 
 TEST_F(ProcessUtilTest, KillSlowChild) {
-  remove(kSignalFileSlow);
+  const std::string signal_file =
+      ProcessUtilTest::GetSignalFilePath(kSignalFileSlow);
+  remove(signal_file.c_str());
   base::ProcessHandle handle = this->SpawnChild("SlowChildProcess", false);
   ASSERT_NE(base::kNullProcessHandle, handle);
-  SignalChildren(kSignalFileSlow);
+  SignalChildren(signal_file.c_str());
   EXPECT_TRUE(base::WaitForSingleProcess(
                   handle, TestTimeouts::action_max_timeout_ms()));
   base::CloseProcessHandle(handle);
-  remove(kSignalFileSlow);
+  remove(signal_file.c_str());
 }
 
 // Times out on Linux and Win, flakes on other platforms, http://crbug.com/95058
 TEST_F(ProcessUtilTest, DISABLED_GetTerminationStatusExit) {
-  remove(kSignalFileSlow);
+  const std::string signal_file =
+      ProcessUtilTest::GetSignalFilePath(kSignalFileSlow);
+  remove(signal_file.c_str());
   base::ProcessHandle handle = this->SpawnChild("SlowChildProcess", false);
   ASSERT_NE(base::kNullProcessHandle, handle);
 
   int exit_code = 42;
   EXPECT_EQ(base::TERMINATION_STATUS_STILL_RUNNING,
             base::GetTerminationStatus(handle, &exit_code));
   EXPECT_EQ(kExpectedStillRunningExitCode, exit_code);
 
-  SignalChildren(kSignalFileSlow);
+  SignalChildren(signal_file.c_str());
   exit_code = 42;
   base::TerminationStatus status =
       WaitForChildTermination(handle, &exit_code);
   EXPECT_EQ(base::TERMINATION_STATUS_NORMAL_TERMINATION, status);
   EXPECT_EQ(0, exit_code);
   base::CloseProcessHandle(handle);
-  remove(kSignalFileSlow);
+  remove(signal_file.c_str());
 }
 
 #if defined(OS_WIN)
 // TODO(cpu): figure out how to test this in other platforms.
 TEST_F(ProcessUtilTest, GetProcId) {
   base::ProcessId id1 = base::GetProcId(GetCurrentProcess());
   EXPECT_NE(0ul, id1);
   base::ProcessHandle handle = this->SpawnChild("SimpleChildProcess", false);
   ASSERT_NE(base::kNullProcessHandle, handle);
   base::ProcessId id2 = base::GetProcId(handle);
@@ skipping 26 matching lines @@
 // This test is disabled on Mac, since it's flaky due to ReportCrash
 // taking a variable amount of time to parse and load the debug and
 // symbol data for this unit test's executable before firing the
 // signal handler.
 //
 // TODO(gspencer): turn this test process into a very small program
 // with no symbols (instead of using the multiprocess testing
 // framework) to reduce the ReportCrash overhead.
 
 MULTIPROCESS_TEST_MAIN(CrashingChildProcess) {
-  WaitToDie(kSignalFileCrash);
+  WaitToDie(ProcessUtilTest::GetSignalFilePath(kSignalFileCrash).c_str());
 #if defined(OS_POSIX)
   // Have to disable to signal handler for segv so we can get a crash
   // instead of an abnormal termination through the crash dump handler.
   ::signal(SIGSEGV, SIG_DFL);
 #endif
   // Make this process have a segmentation fault.
   volatile int* oops = NULL;
   *oops = 0xDEAD;
   return 1;
 }
 
 // This test intentionally crashes, so we don't need to run it under
 // AddressSanitizer.
 #if defined(ADDRESS_SANITIZER)
 #define MAYBE_GetTerminationStatusCrash DISABLED_GetTerminationStatusCrash
 #else
 #define MAYBE_GetTerminationStatusCrash GetTerminationStatusCrash
 #endif
 TEST_F(ProcessUtilTest, MAYBE_GetTerminationStatusCrash) {
-  remove(kSignalFileCrash);
+  const std::string signal_file =
+    ProcessUtilTest::GetSignalFilePath(kSignalFileCrash);
+  remove(signal_file.c_str());
   base::ProcessHandle handle = this->SpawnChild("CrashingChildProcess",
                                                 false);
   ASSERT_NE(base::kNullProcessHandle, handle);
 
   int exit_code = 42;
   EXPECT_EQ(base::TERMINATION_STATUS_STILL_RUNNING,
             base::GetTerminationStatus(handle, &exit_code));
   EXPECT_EQ(kExpectedStillRunningExitCode, exit_code);
 
-  SignalChildren(kSignalFileCrash);
+  SignalChildren(signal_file.c_str());
   exit_code = 42;
   base::TerminationStatus status =
       WaitForChildTermination(handle, &exit_code);
   EXPECT_EQ(base::TERMINATION_STATUS_PROCESS_CRASHED, status);
 
 #if defined(OS_WIN)
   EXPECT_EQ(0xc0000005, exit_code);
 #elif defined(OS_POSIX)
   int signaled = WIFSIGNALED(exit_code);
   EXPECT_NE(0, signaled);
   int signal = WTERMSIG(exit_code);
   EXPECT_EQ(SIGSEGV, signal);
 #endif
   base::CloseProcessHandle(handle);
 
   // Reset signal handlers back to "normal".
   base::EnableInProcessStackDumping();
-  remove(kSignalFileCrash);
+  remove(signal_file.c_str());
 }
 #endif  // !defined(OS_MACOSX)
 
 MULTIPROCESS_TEST_MAIN(KilledChildProcess) {
-  WaitToDie(kSignalFileKill);
+  WaitToDie(ProcessUtilTest::GetSignalFilePath(kSignalFileKill).c_str());
 #if defined(OS_WIN)
   // Kill ourselves.
   HANDLE handle = ::OpenProcess(PROCESS_ALL_ACCESS, 0, ::GetCurrentProcessId());
   ::TerminateProcess(handle, kExpectedKilledExitCode);
 #elif defined(OS_POSIX)
   // Send a SIGKILL to this process, just like the OOM killer would.
   ::kill(getpid(), SIGKILL);
 #endif
   return 1;
 }
 
 TEST_F(ProcessUtilTest, GetTerminationStatusKill) {
-  remove(kSignalFileKill);
+  const std::string signal_file =
+    ProcessUtilTest::GetSignalFilePath(kSignalFileKill);
+  remove(signal_file.c_str());
   base::ProcessHandle handle = this->SpawnChild("KilledChildProcess",
                                                 false);
   ASSERT_NE(base::kNullProcessHandle, handle);
 
   int exit_code = 42;
   EXPECT_EQ(base::TERMINATION_STATUS_STILL_RUNNING,
             base::GetTerminationStatus(handle, &exit_code));
   EXPECT_EQ(kExpectedStillRunningExitCode, exit_code);
 
-  SignalChildren(kSignalFileKill);
+  SignalChildren(signal_file.c_str());
   exit_code = 42;
   base::TerminationStatus status =
       WaitForChildTermination(handle, &exit_code);
   EXPECT_EQ(base::TERMINATION_STATUS_PROCESS_WAS_KILLED, status);
 #if defined(OS_WIN)
   EXPECT_EQ(kExpectedKilledExitCode, exit_code);
 #elif defined(OS_POSIX)
   int signaled = WIFSIGNALED(exit_code);
   EXPECT_NE(0, signaled);
   int signal = WTERMSIG(exit_code);
   EXPECT_EQ(SIGKILL, signal);
 #endif
   base::CloseProcessHandle(handle);
-  remove(kSignalFileKill);
+  remove(signal_file.c_str());
 }
 
 // Ensure that the priority of a process is restored correctly after
 // backgrounding and restoring.
 // Note: a platform may not be willing or able to lower the priority of
 // a process. The calls to SetProcessBackground should be noops then.
 TEST_F(ProcessUtilTest, SetProcessBackgrounded) {
   base::ProcessHandle handle = this->SpawnChild("SimpleChildProcess", false);
   base::Process process(handle);
   int old_priority = process.GetPriority();
@@ skipping 868 matching lines @@
       SetUpInDeathAssert();
       while ((value_ = base::AllocatePsychoticallyBigObjCObject())) {}
     }, "");
 }
 
 #endif  // !ARCH_CPU_64_BITS
 #endif  // OS_MACOSX
 
 #endif  // !defined(OS_ANDROID) && !defined(OS_OPENBSD) &&
         // !defined(OS_WIN) && !defined(ADDRESS_SANITIZER)