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// 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.
// This class sets up the environment for running the native tests inside an
// android application. It outputs (to a fifo) markers identifying the
// START/PASSED/CRASH of the test suite, FAILURE/SUCCESS of individual tests,
// etc.
// These markers are read by the test runner script to generate test results.
// It installs signal handlers to detect crashes.
#include <android/log.h>
#include <signal.h>
#include "base/android/base_jni_registrar.h"
#include "base/android/fifo_utils.h"
#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/android/scoped_java_ref.h"
#include "base/at_exit.h"
#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/strings/stringprintf.h"
#include "gtest/gtest.h"
#include "jni/ChromeNativeTestActivity_jni.h"
#include "testing/android/native_test_util.h"
using testing::native_test_util::ArgsToArgv;
using testing::native_test_util::ParseArgsFromCommandLineFile;
using testing::native_test_util::ScopedMainEntryLogger;
// The main function of the program to be wrapped as a test apk.
extern int main(int argc, char** argv);
namespace {
// These two command line flags are supported for DumpRenderTree, which needs
// three fifos rather than a combined one: one for stderr, stdin and stdout.
const char kSeparateStderrFifo[] = "separate-stderr-fifo";
const char kCreateStdinFifo[] = "create-stdin-fifo";
// The test runner script writes the command line file in
// "/data/local/tmp".
static const char kCommandLineFilePath[] =
"/data/local/tmp/chrome-native-tests-command-line";
const char kLogTag[] = "chromium";
const char kCrashedMarker[] = "[ CRASHED ]\n";
// The list of signals which are considered to be crashes.
const int kExceptionSignals[] = {
SIGSEGV, SIGABRT, SIGFPE, SIGILL, SIGBUS, -1
};
struct sigaction g_old_sa[NSIG];
// This function runs in a compromised context. It should not allocate memory.
void SignalHandler(int sig, siginfo_t* info, void* reserved) {
// Output the crash marker.
write(STDOUT_FILENO, kCrashedMarker, sizeof(kCrashedMarker));
g_old_sa[sig].sa_sigaction(sig, info, reserved);
}
// TODO(nileshagrawal): now that we're using FIFO, test scripts can detect EOF.
// Remove the signal handlers.
void InstallHandlers() {
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = SignalHandler;
sa.sa_flags = SA_SIGINFO;
for (unsigned int i = 0; kExceptionSignals[i] != -1; ++i) {
sigaction(kExceptionSignals[i], &sa, &g_old_sa[kExceptionSignals[i]]);
}
}
// Writes printf() style string to Android's logger where |priority| is one of
// the levels defined in <android/log.h>.
void AndroidLog(int priority, const char* format, ...) {
va_list args;
va_start(args, format);
__android_log_vprint(priority, kLogTag, format, args);
va_end(args);
}
// Ensures that the fifo at |path| is created by deleting whatever is at |path|
// prior to (re)creating the fifo, otherwise logs the error and terminates the
// program.
void EnsureCreateFIFO(const base::FilePath& path) {
unlink(path.value().c_str());
if (base::android::CreateFIFO(path, 0666))
return;
AndroidLog(ANDROID_LOG_ERROR, "Failed to create fifo %s: %s\n",
path.value().c_str(), strerror(errno));
exit(EXIT_FAILURE);
}
// Ensures that |stream| is redirected to |path|, otherwise logs the error and
// terminates the program.
void EnsureRedirectStream(FILE* stream,
const base::FilePath& path,
const char* mode) {
if (base::android::RedirectStream(stream, path, mode))
return;
AndroidLog(ANDROID_LOG_ERROR, "Failed to redirect stream to file: %s: %s\n",
path.value().c_str(), strerror(errno));
exit(EXIT_FAILURE);
}
} // namespace
static void RunTests(JNIEnv* env,
jobject obj,
jstring jfiles_dir,
jobject app_context) {
base::AtExitManager exit_manager;
// Command line initialized basically, will be fully initialized later.
static const char* const kInitialArgv[] = { "ChromeTestActivity" };
CommandLine::Init(arraysize(kInitialArgv), kInitialArgv);
// Set the application context in base.
base::android::ScopedJavaLocalRef<jobject> scoped_context(
env, env->NewLocalRef(app_context));
base::android::InitApplicationContext(env, scoped_context);
base::android::RegisterJni(env);
std::vector<std::string> args;
ParseArgsFromCommandLineFile(kCommandLineFilePath, &args);
std::vector<char*> argv;
int argc = ArgsToArgv(args, &argv);
// Fully initialize command line with arguments.
CommandLine::ForCurrentProcess()->AppendArguments(
CommandLine(argc, &argv[0]), false);
const CommandLine& command_line = *CommandLine::ForCurrentProcess();
base::FilePath files_dir(
base::android::ConvertJavaStringToUTF8(env, jfiles_dir));
// A few options, such "--gtest_list_tests", will just use printf directly
// Always redirect stdout to a known file.
base::FilePath fifo_path(files_dir.Append(base::FilePath("test.fifo")));
EnsureCreateFIFO(fifo_path);
base::FilePath stderr_fifo_path, stdin_fifo_path;
// DumpRenderTree needs a separate fifo for the stderr output. For all
// other tests, insert stderr content to the same fifo we use for stdout.
if (command_line.HasSwitch(kSeparateStderrFifo)) {
stderr_fifo_path = files_dir.Append(base::FilePath("stderr.fifo"));
EnsureCreateFIFO(stderr_fifo_path);
}
// DumpRenderTree uses stdin to receive input about which test to run.
if (command_line.HasSwitch(kCreateStdinFifo)) {
stdin_fifo_path = files_dir.Append(base::FilePath("stdin.fifo"));
EnsureCreateFIFO(stdin_fifo_path);
}
// Only redirect the streams after all fifos have been created.
EnsureRedirectStream(stdout, fifo_path, "w");
if (!stdin_fifo_path.empty())
EnsureRedirectStream(stdin, stdin_fifo_path, "r");
if (!stderr_fifo_path.empty())
EnsureRedirectStream(stderr, stderr_fifo_path, "w");
else
dup2(STDOUT_FILENO, STDERR_FILENO);
if (command_line.HasSwitch(switches::kWaitForDebugger)) {
AndroidLog(ANDROID_LOG_VERBOSE,
"Native test waiting for GDB because flag %s was supplied",
switches::kWaitForDebugger);
base::debug::WaitForDebugger(24 * 60 * 60, false);
}
ScopedMainEntryLogger scoped_main_entry_logger;
main(argc, &argv[0]);
}
// This is called by the VM when the shared library is first loaded.
JNI_EXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved) {
// Install signal handlers to detect crashes.
InstallHandlers();
base::android::InitVM(vm);
JNIEnv* env = base::android::AttachCurrentThread();
if (!RegisterNativesImpl(env)) {
return -1;
}
return JNI_VERSION_1_4;
}
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