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test_environment.cc
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test_environment.cc
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#include "node_buffer.h"
#include "node_internals.h"
#include "libplatform/libplatform.h"
#include <string>
#include "gtest/gtest.h"
#include "node_test_fixture.h"
using node::AtExit;
using node::RunAtExit;
static bool called_cb_1 = false;
static bool called_cb_2 = false;
static bool called_cb_ordered_1 = false;
static bool called_cb_ordered_2 = false;
static bool called_at_exit_js = false;
static void at_exit_callback1(void* arg);
static void at_exit_callback2(void* arg);
static void at_exit_callback_ordered1(void* arg);
static void at_exit_callback_ordered2(void* arg);
static void at_exit_js(void* arg);
static std::string cb_1_arg; // NOLINT(runtime/string)
class EnvironmentTest : public EnvironmentTestFixture {
private:
void TearDown() override {
NodeTestFixture::TearDown();
called_cb_1 = false;
called_cb_2 = false;
called_cb_ordered_1 = false;
called_cb_ordered_2 = false;
}
};
TEST_F(EnvironmentTest, PreExecutionPreparation) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
node::LoadEnvironment(*env, [&](const node::StartExecutionCallbackInfo& info)
-> v8::MaybeLocal<v8::Value> {
return v8::Null(isolate_);
});
v8::Local<v8::Context> context = isolate_->GetCurrentContext();
const char* run_script = "process.argv0";
v8::Local<v8::Script> script = v8::Script::Compile(
context,
v8::String::NewFromOneByte(isolate_,
reinterpret_cast<const uint8_t*>(run_script),
v8::NewStringType::kNormal).ToLocalChecked())
.ToLocalChecked();
v8::Local<v8::Value> result = script->Run(context).ToLocalChecked();
CHECK(result->IsString());
}
TEST_F(EnvironmentTest, LoadEnvironmentWithCallback) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
v8::Local<v8::Context> context = isolate_->GetCurrentContext();
bool called_cb = false;
node::LoadEnvironment(*env,
[&](const node::StartExecutionCallbackInfo& info)
-> v8::MaybeLocal<v8::Value> {
called_cb = true;
CHECK(info.process_object->IsObject());
CHECK(info.native_require->IsFunction());
v8::Local<v8::Value> argv0 = info.process_object->Get(
context,
v8::String::NewFromOneByte(
isolate_,
reinterpret_cast<const uint8_t*>("argv0"),
v8::NewStringType::kNormal).ToLocalChecked()).ToLocalChecked();
CHECK(argv0->IsString());
return info.process_object;
});
CHECK(called_cb);
}
TEST_F(EnvironmentTest, LoadEnvironmentWithSource) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
v8::Local<v8::Context> context = isolate_->GetCurrentContext();
v8::Local<v8::Value> main_ret =
node::LoadEnvironment(*env,
"return { process, require };").ToLocalChecked();
CHECK(main_ret->IsObject());
CHECK(main_ret.As<v8::Object>()->Get(
context,
v8::String::NewFromOneByte(
isolate_,
reinterpret_cast<const uint8_t*>("process"),
v8::NewStringType::kNormal).ToLocalChecked())
.ToLocalChecked()->IsObject());
CHECK(main_ret.As<v8::Object>()->Get(
context,
v8::String::NewFromOneByte(
isolate_,
reinterpret_cast<const uint8_t*>("require"),
v8::NewStringType::kNormal).ToLocalChecked())
.ToLocalChecked()->IsFunction());
}
TEST_F(EnvironmentTest, AtExitWithEnvironment) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
AtExit(*env, at_exit_callback1);
RunAtExit(*env);
EXPECT_TRUE(called_cb_1);
}
TEST_F(EnvironmentTest, AtExitWithoutEnvironment) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
AtExit(at_exit_callback1); // No Environment is passed to AtExit.
RunAtExit(*env);
EXPECT_TRUE(called_cb_1);
}
TEST_F(EnvironmentTest, AtExitOrder) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
// Test that callbacks are run in reverse order.
AtExit(*env, at_exit_callback_ordered1);
AtExit(*env, at_exit_callback_ordered2);
RunAtExit(*env);
EXPECT_TRUE(called_cb_ordered_1);
EXPECT_TRUE(called_cb_ordered_2);
}
TEST_F(EnvironmentTest, AtExitWithArgument) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
std::string arg{"some args"};
AtExit(*env, at_exit_callback1, static_cast<void*>(&arg));
RunAtExit(*env);
EXPECT_EQ(arg, cb_1_arg);
}
TEST_F(EnvironmentTest, AtExitRunsJS) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
AtExit(*env, at_exit_js, static_cast<void*>(isolate_));
EXPECT_FALSE(called_at_exit_js);
RunAtExit(*env);
EXPECT_TRUE(called_at_exit_js);
}
TEST_F(EnvironmentTest, MultipleEnvironmentsPerIsolate) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env1 {handle_scope, argv};
Env env2 {handle_scope, argv};
AtExit(*env1, at_exit_callback1);
AtExit(*env2, at_exit_callback2);
RunAtExit(*env1);
EXPECT_TRUE(called_cb_1);
EXPECT_FALSE(called_cb_2);
RunAtExit(*env2);
EXPECT_TRUE(called_cb_2);
}
TEST_F(EnvironmentTest, NoEnvironmentSanity) {
const v8::HandleScope handle_scope(isolate_);
v8::Local<v8::Context> context = v8::Context::New(isolate_);
EXPECT_EQ(node::Environment::GetCurrent(context), nullptr);
EXPECT_EQ(node::GetCurrentEnvironment(context), nullptr);
EXPECT_EQ(node::Environment::GetCurrent(isolate_), nullptr);
v8::Context::Scope context_scope(context);
EXPECT_EQ(node::Environment::GetCurrent(context), nullptr);
EXPECT_EQ(node::GetCurrentEnvironment(context), nullptr);
EXPECT_EQ(node::Environment::GetCurrent(isolate_), nullptr);
}
TEST_F(EnvironmentTest, NonNodeJSContext) {
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env test_env {handle_scope, argv};
EXPECT_EQ(node::Environment::GetCurrent(v8::Local<v8::Context>()), nullptr);
node::Environment* env = *test_env;
EXPECT_EQ(node::Environment::GetCurrent(isolate_), env);
EXPECT_EQ(node::Environment::GetCurrent(env->context()), env);
EXPECT_EQ(node::GetCurrentEnvironment(env->context()), env);
v8::Local<v8::Context> context = v8::Context::New(isolate_);
EXPECT_EQ(node::Environment::GetCurrent(context), nullptr);
EXPECT_EQ(node::GetCurrentEnvironment(context), nullptr);
EXPECT_EQ(node::Environment::GetCurrent(isolate_), env);
v8::Context::Scope context_scope(context);
EXPECT_EQ(node::Environment::GetCurrent(context), nullptr);
EXPECT_EQ(node::GetCurrentEnvironment(context), nullptr);
EXPECT_EQ(node::Environment::GetCurrent(isolate_), nullptr);
}
static void at_exit_callback1(void* arg) {
called_cb_1 = true;
if (arg) {
cb_1_arg = *static_cast<std::string*>(arg);
}
}
static void at_exit_callback2(void* arg) {
called_cb_2 = true;
}
static void at_exit_callback_ordered1(void* arg) {
EXPECT_TRUE(called_cb_ordered_2);
called_cb_ordered_1 = true;
}
static void at_exit_callback_ordered2(void* arg) {
EXPECT_FALSE(called_cb_ordered_1);
called_cb_ordered_2 = true;
}
static void at_exit_js(void* arg) {
v8::Isolate* isolate = static_cast<v8::Isolate*>(arg);
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Object> obj = v8::Object::New(isolate);
assert(!obj.IsEmpty()); // Assert VM is still alive.
assert(obj->IsObject());
called_at_exit_js = true;
}
TEST_F(EnvironmentTest, SetImmediateCleanup) {
int called = 0;
int called_unref = 0;
{
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
node::LoadEnvironment(*env,
[&](const node::StartExecutionCallbackInfo& info)
-> v8::MaybeLocal<v8::Value> {
return v8::Object::New(isolate_);
});
(*env)->SetImmediate([&](node::Environment* env_arg) {
EXPECT_EQ(env_arg, *env);
called++;
});
(*env)->SetImmediate([&](node::Environment* env_arg) {
EXPECT_EQ(env_arg, *env);
called_unref++;
}, node::CallbackFlags::kUnrefed);
}
EXPECT_EQ(called, 1);
EXPECT_EQ(called_unref, 0);
}
static char hello[] = "hello";
TEST_F(EnvironmentTest, BufferWithFreeCallbackIsDetached) {
// Test that a Buffer allocated with a free callback is detached after
// its callback has been called.
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
int callback_calls = 0;
v8::Local<v8::ArrayBuffer> ab;
{
Env env {handle_scope, argv};
v8::Local<v8::Object> buf_obj = node::Buffer::New(
isolate_,
hello,
sizeof(hello),
[](char* data, void* hint) {
CHECK_EQ(data, hello);
++*static_cast<int*>(hint);
},
&callback_calls).ToLocalChecked();
CHECK(buf_obj->IsUint8Array());
ab = buf_obj.As<v8::Uint8Array>()->Buffer();
CHECK_EQ(ab->ByteLength(), sizeof(hello));
}
CHECK_EQ(callback_calls, 1);
CHECK_EQ(ab->ByteLength(), 0);
}
#if HAVE_INSPECTOR
TEST_F(EnvironmentTest, InspectorMultipleEmbeddedEnvironments) {
// Tests that child Environments can be created through the public API
// that are accessible by the inspector.
// This test sets a global variable in the child Environment, and reads it
// back both through the inspector and inside the child Environment, and
// makes sure that those correspond to the value that was originally set.
const v8::HandleScope handle_scope(isolate_);
const Argv argv;
Env env {handle_scope, argv};
v8::Local<v8::Context> context = isolate_->GetCurrentContext();
node::LoadEnvironment(*env,
"'use strict';\n"
"const { Worker } = require('worker_threads');\n"
"const { Session } = require('inspector');\n"
"const session = new Session();\n"
"session.connect();\n"
"session.on('NodeWorker.attachedToWorker', (\n"
" ({ params: { workerInfo, sessionId } }) => {\n"
" session.post('NodeWorker.sendMessageToWorker', {\n"
" sessionId,\n"
" message: JSON.stringify({\n"
" id: 1,\n"
" method: 'Runtime.evaluate',\n"
" params: {\n"
" expression: 'global.variableFromParent = 42;'\n"
" }\n"
" })\n"
" });\n"
" session.on('NodeWorker.receivedMessageFromWorker',\n"
" ({ params: { message } }) => {\n"
" global.messageFromWorker = \n"
" JSON.parse(message).result.result.value;\n"
" });\n"
" }));\n"
"session.post('NodeWorker.enable', { waitForDebuggerOnStart: false });\n")
.ToLocalChecked();
struct ChildEnvironmentData {
node::ThreadId thread_id;
std::unique_ptr<node::InspectorParentHandle> inspector_parent_handle;
node::MultiIsolatePlatform* platform;
int32_t extracted_value = -1;
uv_async_t thread_stopped_async;
};
ChildEnvironmentData data;
data.thread_id = node::AllocateEnvironmentThreadId();
data.inspector_parent_handle =
GetInspectorParentHandle(*env, data.thread_id, "file:///embedded.js");
CHECK(data.inspector_parent_handle);
data.platform = GetMultiIsolatePlatform(*env);
CHECK_NOT_NULL(data.platform);
bool thread_stopped = false;
int err = uv_async_init(
¤t_loop, &data.thread_stopped_async, [](uv_async_t* async) {
*static_cast<bool*>(async->data) = true;
uv_close(reinterpret_cast<uv_handle_t*>(async), nullptr);
});
CHECK_EQ(err, 0);
data.thread_stopped_async.data = &thread_stopped;
uv_thread_t thread;
err = uv_thread_create(&thread, [](void* arg) {
ChildEnvironmentData* data = static_cast<ChildEnvironmentData*>(arg);
std::shared_ptr<node::ArrayBufferAllocator> aba =
node::ArrayBufferAllocator::Create();
uv_loop_t loop;
uv_loop_init(&loop);
v8::Isolate* isolate = NewIsolate(aba.get(), &loop, data->platform);
CHECK_NOT_NULL(isolate);
{
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
v8::Local<v8::Context> context = node::NewContext(isolate);
CHECK(!context.IsEmpty());
v8::Context::Scope context_scope(context);
node::IsolateData* isolate_data = node::CreateIsolateData(
isolate,
&loop,
data->platform);
CHECK_NOT_NULL(isolate_data);
node::Environment* environment = node::CreateEnvironment(
isolate_data,
context,
{ "dummy" },
{},
node::EnvironmentFlags::kNoFlags,
data->thread_id);
CHECK_NOT_NULL(environment);
v8::Local<v8::Value> extracted_value = LoadEnvironment(
environment,
"return global.variableFromParent;",
std::move(data->inspector_parent_handle)).ToLocalChecked();
uv_run(&loop, UV_RUN_DEFAULT);
CHECK(extracted_value->IsInt32());
data->extracted_value = extracted_value.As<v8::Int32>()->Value();
node::FreeEnvironment(environment);
node::FreeIsolateData(isolate_data);
}
data->platform->UnregisterIsolate(isolate);
isolate->Dispose();
uv_run(&loop, UV_RUN_DEFAULT);
CHECK_EQ(uv_loop_close(&loop), 0);
uv_async_send(&data->thread_stopped_async);
}, &data);
CHECK_EQ(err, 0);
bool more;
do {
uv_run(¤t_loop, UV_RUN_DEFAULT);
data.platform->DrainTasks(isolate_);
more = uv_loop_alive(¤t_loop);
} while (!thread_stopped || more);
uv_thread_join(&thread);
v8::Local<v8::Value> from_inspector =
context->Global()->Get(
context,
v8::String::NewFromOneByte(
isolate_,
reinterpret_cast<const uint8_t*>("messageFromWorker"),
v8::NewStringType::kNormal).ToLocalChecked())
.ToLocalChecked();
CHECK_EQ(data.extracted_value, 42);
CHECK_EQ(from_inspector->IntegerValue(context).FromJust(), 42);
}
#endif // HAVE_INSPECTOR