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// Copyright 2014 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.
#include "extensions/renderer/module_system_test.h"
#include <stddef.h>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include "base/callback.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/lazy_instance.h"
#include "base/memory/ptr_util.h"
#include "base/path_service.h"
#include "base/strings/string_piece.h"
#include "extensions/common/extension_paths.h"
#include "extensions/renderer/logging_native_handler.h"
#include "extensions/renderer/object_backed_native_handler.h"
#include "extensions/renderer/safe_builtins.h"
#include "extensions/renderer/string_source_map.h"
#include "extensions/renderer/test_v8_extension_configuration.h"
#include "extensions/renderer/utils_native_handler.h"
#include "ui/base/resource/resource_bundle.h"
namespace extensions {
namespace {
class FailsOnException : public ModuleSystem::ExceptionHandler {
public:
FailsOnException() : ModuleSystem::ExceptionHandler(nullptr) {}
void HandleUncaughtException(const v8::TryCatch& try_catch) override {
FAIL() << "Uncaught exception: " << CreateExceptionString(try_catch);
}
};
} // namespace
// Native JS functions for doing asserts.
class ModuleSystemTestEnvironment::AssertNatives
: public ObjectBackedNativeHandler {
public:
explicit AssertNatives(ScriptContext* context)
: ObjectBackedNativeHandler(context),
assertion_made_(false),
failed_(false) {
RouteFunction(
"AssertTrue",
base::Bind(&AssertNatives::AssertTrue, base::Unretained(this)));
RouteFunction(
"AssertFalse",
base::Bind(&AssertNatives::AssertFalse, base::Unretained(this)));
}
bool assertion_made() { return assertion_made_; }
bool failed() { return failed_; }
void AssertTrue(const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(1, args.Length());
assertion_made_ = true;
failed_ = failed_ || !args[0]->ToBoolean(args.GetIsolate())->Value();
}
void AssertFalse(const v8::FunctionCallbackInfo<v8::Value>& args) {
CHECK_EQ(1, args.Length());
assertion_made_ = true;
failed_ = failed_ || args[0]->ToBoolean(args.GetIsolate())->Value();
}
private:
bool assertion_made_;
bool failed_;
};
ModuleSystemTestEnvironment::ModuleSystemTestEnvironment(v8::Isolate* isolate)
: isolate_(isolate),
context_holder_(new gin::ContextHolder(isolate_)),
handle_scope_(isolate_),
source_map_(new StringSourceMap()) {
context_holder_->SetContext(v8::Context::New(
isolate, TestV8ExtensionConfiguration::GetConfiguration()));
context_.reset(new ScriptContext(context_holder_->context(),
nullptr, // WebFrame
nullptr, // Extension
Feature::BLESSED_EXTENSION_CONTEXT,
nullptr, // Effective Extension
Feature::BLESSED_EXTENSION_CONTEXT));
context_->v8_context()->Enter();
assert_natives_ = new AssertNatives(context_.get());
{
std::unique_ptr<ModuleSystem> module_system(
new ModuleSystem(context_.get(), source_map_.get()));
context_->set_module_system(std::move(module_system));
}
ModuleSystem* module_system = context_->module_system();
module_system->RegisterNativeHandler(
"assert", std::unique_ptr<NativeHandler>(assert_natives_));
module_system->RegisterNativeHandler(
"logging",
std::unique_ptr<NativeHandler>(new LoggingNativeHandler(context_.get())));
module_system->RegisterNativeHandler(
"utils",
std::unique_ptr<NativeHandler>(new UtilsNativeHandler(context_.get())));
module_system->SetExceptionHandlerForTest(
std::unique_ptr<ModuleSystem::ExceptionHandler>(new FailsOnException));
}
ModuleSystemTestEnvironment::~ModuleSystemTestEnvironment() {
if (context_->is_valid())
ShutdownModuleSystem();
}
void ModuleSystemTestEnvironment::RegisterModule(const std::string& name,
const std::string& code) {
source_map_->RegisterModule(name, code);
}
void ModuleSystemTestEnvironment::RegisterModule(const std::string& name,
int resource_id) {
const std::string& code = ResourceBundle::GetSharedInstance()
.GetRawDataResource(resource_id)
.as_string();
source_map_->RegisterModule(name, code);
}
void ModuleSystemTestEnvironment::OverrideNativeHandler(
const std::string& name,
const std::string& code) {
RegisterModule(name, code);
context_->module_system()->OverrideNativeHandlerForTest(name);
}
void ModuleSystemTestEnvironment::RegisterTestFile(
const std::string& module_name,
const std::string& file_name) {
base::FilePath test_js_file_path;
ASSERT_TRUE(PathService::Get(DIR_TEST_DATA, &test_js_file_path));
test_js_file_path = test_js_file_path.AppendASCII(file_name);
std::string test_js;
ASSERT_TRUE(base::ReadFileToString(test_js_file_path, &test_js));
source_map_->RegisterModule(module_name, test_js);
}
void ModuleSystemTestEnvironment::ShutdownGin() {
context_holder_.reset();
}
void ModuleSystemTestEnvironment::ShutdownModuleSystem() {
CHECK(context_->is_valid());
context_->v8_context()->Exit();
context_->Invalidate();
}
v8::Local<v8::Object> ModuleSystemTestEnvironment::CreateGlobal(
const std::string& name) {
v8::EscapableHandleScope handle_scope(isolate_);
v8::Local<v8::Object> object = v8::Object::New(isolate_);
isolate_->GetCurrentContext()->Global()->Set(
v8::String::NewFromUtf8(isolate_, name.c_str()), object);
return handle_scope.Escape(object);
}
ModuleSystemTest::ModuleSystemTest()
: isolate_(v8::Isolate::GetCurrent()),
should_assertions_be_made_(true) {
}
ModuleSystemTest::~ModuleSystemTest() {
}
void ModuleSystemTest::SetUp() {
env_ = CreateEnvironment();
base::CommandLine::ForCurrentProcess()->AppendSwitch("test-type");
}
void ModuleSystemTest::TearDown() {
// All tests must assert at least once unless otherwise specified.
EXPECT_EQ(should_assertions_be_made_,
env_->assert_natives()->assertion_made());
EXPECT_FALSE(env_->assert_natives()->failed());
env_.reset();
v8::HeapStatistics stats;
isolate_->GetHeapStatistics(&stats);
size_t old_heap_size = 0;
// Run the GC until the heap size reaches a steady state to ensure that
// all the garbage is collected.
while (stats.used_heap_size() != old_heap_size) {
old_heap_size = stats.used_heap_size();
isolate_->RequestGarbageCollectionForTesting(
v8::Isolate::kFullGarbageCollection);
isolate_->GetHeapStatistics(&stats);
}
}
std::unique_ptr<ModuleSystemTestEnvironment>
ModuleSystemTest::CreateEnvironment() {
return base::WrapUnique(new ModuleSystemTestEnvironment(isolate_));
}
void ModuleSystemTest::ExpectNoAssertionsMade() {
should_assertions_be_made_ = false;
}
void ModuleSystemTest::RunResolvedPromises() {
v8::MicrotasksScope::PerformCheckpoint(isolate_);
}
} // namespace extensions
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