testing/android/native_test/native_test_launcher.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 // This class sets up the environment for running the native tests inside an
   6 // android application. It outputs (to a fifo) markers identifying the
   7 // START/PASSED/CRASH of the test suite, FAILURE/SUCCESS of individual tests,
   8 // etc.
   9 // These markers are read by the test runner script to generate test results.
  10 // It installs signal handlers to detect crashes.
  11
  12 #include <android/log.h>
  13 #include <signal.h>
  14
  15 #include "base/android/base_jni_registrar.h"
  16 #include "base/android/fifo_utils.h"
  17 #include "base/android/jni_android.h"
  18 #include "base/android/jni_string.h"
  19 #include "base/android/scoped_java_ref.h"
  20 #include "base/at_exit.h"
  21 #include "base/base_switches.h"
  22 #include "base/command_line.h"
  23 #include "base/files/file_path.h"
  24 #include "base/files/file_util.h"
  25 #include "base/logging.h"
  26 #include "base/strings/stringprintf.h"
  27 #include "gtest/gtest.h"
  28 #include "jni/NativeTestActivity_jni.h"
  29 #include "testing/android/native_test/native_test_util.h"
  30
  31 // The main function of the program to be wrapped as a test apk.
  32 extern int main(int argc, char** argv);
  33
  34 namespace testing {
  35 namespace android {
  36
  37 namespace {
  38
  39 // The test runner script writes the command line file in
  40 // "/data/local/tmp".
  41 static const char kCommandLineFilePath[] =
  42     "/data/local/tmp/chrome-native-tests-command-line";
  43
  44 const char kLogTag[] = "chromium";
  45 const char kCrashedMarker[] = "[ CRASHED      ]\n";
  46
  47 // The list of signals which are considered to be crashes.
  48 const int kExceptionSignals[] = {
  49   SIGSEGV, SIGABRT, SIGFPE, SIGILL, SIGBUS, -1
  50 };
  51
  52 struct sigaction g_old_sa[NSIG];
  53
  54 // This function runs in a compromised context. It should not allocate memory.
  55 void SignalHandler(int sig, siginfo_t* info, void* reserved) {
  56   // Output the crash marker.
  57   write(STDOUT_FILENO, kCrashedMarker, sizeof(kCrashedMarker));
  58   g_old_sa[sig].sa_sigaction(sig, info, reserved);
  59 }
  60
  61 // Writes printf() style string to Android's logger where |priority| is one of
  62 // the levels defined in <android/log.h>.
  63 void AndroidLog(int priority, const char* format, ...) {
  64   va_list args;
  65   va_start(args, format);
  66   __android_log_vprint(priority, kLogTag, format, args);
  67   va_end(args);
  68 }
  69
  70 }  // namespace
  71
  72 static void RunTests(JNIEnv* env,
  73                      jobject obj,
  74                      jstring jcommand_line_flags,
  75                      jstring jcommand_line_file_path,
  76                      jstring jstdout_file_path,
  77                      jboolean jstdout_fifo,
  78                      jobject app_context) {
  79   // Command line initialized basically, will be fully initialized later.
  80   static const char* const kInitialArgv[] = { "ChromeTestActivity" };
  81   base::CommandLine::Init(arraysize(kInitialArgv), kInitialArgv);
  82
  83   // Set the application context in base.
  84   base::android::ScopedJavaLocalRef<jobject> scoped_context(
  85       env, env->NewLocalRef(app_context));
  86   base::android::InitApplicationContext(env, scoped_context);
  87   base::android::RegisterJni(env);
  88
  89   std::vector<std::string> args;
  90
  91   const std::string command_line_file_path(
  92       base::android::ConvertJavaStringToUTF8(env, jcommand_line_file_path));
  93   if (command_line_file_path.empty())
  94     ParseArgsFromCommandLineFile(kCommandLineFilePath, &args);
  95   else
  96     ParseArgsFromCommandLineFile(command_line_file_path.c_str(), &args);
  97
  98   const std::string command_line_flags(
  99       base::android::ConvertJavaStringToUTF8(env, jcommand_line_flags));
 100   ParseArgsFromString(command_line_flags, &args);
 101
 102   std::vector<char*> argv;
 103   int argc = ArgsToArgv(args, &argv);
 104
 105   // Fully initialize command line with arguments.
 106   base::CommandLine::ForCurrentProcess()->AppendArguments(
 107       base::CommandLine(argc, &argv[0]), false);
 108   const base::CommandLine& command_line =
 109       *base::CommandLine::ForCurrentProcess();
 110
 111   base::FilePath stdout_file_path(
 112       base::android::ConvertJavaStringToUTF8(env, jstdout_file_path));
 113
 114   // A few options, such "--gtest_list_tests", will just use printf directly
 115   // Always redirect stdout to a known file.
 116   unlink(stdout_file_path.value().c_str());
 117   if (jstdout_fifo) {
 118     if (!base::android::CreateFIFO(stdout_file_path, 0666)) {
 119       AndroidLog(ANDROID_LOG_ERROR, "Failed to create fifo %s: %s\n",
 120                  stdout_file_path.value().c_str(), strerror(errno));
 121       exit(EXIT_FAILURE);
 122     }
 123   }
 124   if (!base::android::RedirectStream(stdout, stdout_file_path, "w+")) {
 125     AndroidLog(ANDROID_LOG_ERROR, "Failed to redirect stream to file: %s: %s\n",
 126                stdout_file_path.value().c_str(), strerror(errno));
 127     exit(EXIT_FAILURE);
 128   }
 129   dup2(STDOUT_FILENO, STDERR_FILENO);
 130
 131   if (command_line.HasSwitch(switches::kWaitForDebugger)) {
 132     AndroidLog(ANDROID_LOG_VERBOSE,
 133                "Native test waiting for GDB because flag %s was supplied",
 134                switches::kWaitForDebugger);
 135     base::debug::WaitForDebugger(24 * 60 * 60, false);
 136   }
 137
 138   ScopedMainEntryLogger scoped_main_entry_logger;
 139   main(argc, &argv[0]);
 140 }
 141
 142 bool RegisterNativeTestJNI(JNIEnv* env) {
 143   return RegisterNativesImpl(env);
 144 }
 145
 146 // TODO(nileshagrawal): now that we're using FIFO, test scripts can detect EOF.
 147 // Remove the signal handlers.
 148 void InstallHandlers() {
 149   struct sigaction sa;
 150   memset(&sa, 0, sizeof(sa));
 151
 152   sa.sa_sigaction = SignalHandler;
 153   sa.sa_flags = SA_SIGINFO;
 154
 155   for (unsigned int i = 0; kExceptionSignals[i] != -1; ++i) {
 156     sigaction(kExceptionSignals[i], &sa, &g_old_sa[kExceptionSignals[i]]);
 157   }
 158 }
 159
 160 }  // namespace android
 161 }  // namespace testing