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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 "gin/modules/module_registry.h"
#include "base/bind.h"
#include "base/message_loop/message_loop.h"
#include "gin/modules/module_registry_observer.h"
#include "gin/modules/module_runner_delegate.h"
#include "gin/public/context_holder.h"
#include "gin/public/isolate_holder.h"
#include "gin/shell_runner.h"
#include "gin/test/v8_test.h"
#include "v8/include/v8.h"
namespace gin {
namespace {
struct TestHelper {
TestHelper(v8::Isolate* isolate)
: delegate(std::vector<base::FilePath>()),
runner(new ShellRunner(&delegate, isolate)),
scope(runner.get()) {
}
base::MessageLoop message_loop;
ModuleRunnerDelegate delegate;
scoped_ptr<ShellRunner> runner;
Runner::Scope scope;
};
class ModuleRegistryObserverImpl : public ModuleRegistryObserver {
public:
ModuleRegistryObserverImpl() : did_add_count_(0) {}
virtual void OnDidAddPendingModule(
const std::string& id,
const std::vector<std::string>& dependencies) override {
did_add_count_++;
id_ = id;
dependencies_ = dependencies;
}
int did_add_count() { return did_add_count_; }
const std::string& id() const { return id_; }
const std::vector<std::string>& dependencies() const { return dependencies_; }
private:
int did_add_count_;
std::string id_;
std::vector<std::string> dependencies_;
DISALLOW_COPY_AND_ASSIGN(ModuleRegistryObserverImpl);
};
void NestedCallback(v8::Handle<v8::Value> value) {
FAIL() << "Should not be called";
}
void OnModuleLoaded(TestHelper* helper,
v8::Isolate* isolate,
int64_t* counter,
v8::Handle<v8::Value> value) {
ASSERT_TRUE(value->IsNumber());
v8::Handle<v8::Integer> int_value = v8::Handle<v8::Integer>::Cast(value);
*counter += int_value->Value();
ModuleRegistry::From(helper->runner->GetContextHolder()->context())
->LoadModule(isolate, "two", base::Bind(NestedCallback));
}
} // namespace
typedef V8Test ModuleRegistryTest;
// Verifies ModuleRegistry is not available after ContextHolder has been
// deleted.
TEST_F(ModuleRegistryTest, DestroyedWithContext) {
v8::Isolate::Scope isolate_scope(instance_->isolate());
v8::HandleScope handle_scope(instance_->isolate());
v8::Handle<v8::Context> context = v8::Context::New(
instance_->isolate(), NULL, v8::Handle<v8::ObjectTemplate>());
{
ContextHolder context_holder(instance_->isolate());
context_holder.SetContext(context);
ModuleRegistry* registry = ModuleRegistry::From(context);
EXPECT_TRUE(registry != NULL);
}
ModuleRegistry* registry = ModuleRegistry::From(context);
EXPECT_TRUE(registry == NULL);
}
// Verifies ModuleRegistryObserver is notified appropriately.
TEST_F(ModuleRegistryTest, ModuleRegistryObserverTest) {
TestHelper helper(instance_->isolate());
std::string source =
"define('id', ['dep1', 'dep2'], function() {"
" return function() {};"
"});";
ModuleRegistryObserverImpl observer;
ModuleRegistry::From(helper.runner->GetContextHolder()->context())->
AddObserver(&observer);
helper.runner->Run(source, "script");
ModuleRegistry::From(helper.runner->GetContextHolder()->context())->
RemoveObserver(&observer);
EXPECT_EQ(1, observer.did_add_count());
EXPECT_EQ("id", observer.id());
ASSERT_EQ(2u, observer.dependencies().size());
EXPECT_EQ("dep1", observer.dependencies()[0]);
EXPECT_EQ("dep2", observer.dependencies()[1]);
}
// Verifies that multiple LoadModule calls for the same module are handled
// correctly.
TEST_F(ModuleRegistryTest, LoadModuleTest) {
TestHelper helper(instance_->isolate());
int64_t counter = 0;
std::string source =
"define('one', [], function() {"
" return 1;"
"});";
ModuleRegistry::LoadModuleCallback callback =
base::Bind(OnModuleLoaded, &helper, instance_->isolate(), &counter);
for (int i = 0; i < 3; i++) {
ModuleRegistry::From(helper.runner->GetContextHolder()->context())
->LoadModule(instance_->isolate(), "one", callback);
}
EXPECT_EQ(0, counter);
helper.runner->Run(source, "script");
EXPECT_EQ(3, counter);
}
} // namespace gin
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