Introduce BeforeCallEnteredCallback.

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 484ce9f7201d4c5909a705280e70ebd9d7af1784..4e50663b8216a457ac2d5e804c5c137fbe373e96 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -20790,6 +20790,8 @@ THREADED_TEST(ForeignFunctionReceiver) {
 
 
 uint8_t callback_fired = 0;
+uint8_t before_call_entered_callback_count1 = 0;
+uint8_t before_call_entered_callback_count2 = 0;
 
 
 void CallCompletedCallback1() {
@@ -20804,6 +20806,18 @@ void CallCompletedCallback2() {
 }
 
 
+void BeforeCallEnteredCallback1(v8::Isolate*) {
+  v8::base::OS::Print("Firing before call entered callback 1.\n");
+  before_call_entered_callback_count1++;
+}
+
+
+void BeforeCallEnteredCallback2(v8::Isolate*) {
+  v8::base::OS::Print("Firing before call entered callback 2.\n");
+  before_call_entered_callback_count2++;
+}
+
+
 void RecursiveCall(const v8::FunctionCallbackInfo<v8::Value>& args) {
   int32_t level =
       args[0]->Int32Value(args.GetIsolate()->GetCurrentContext()).FromJust();
@@ -20836,26 +20850,44 @@ TEST(CallCompletedCallback) {
   env->GetIsolate()->AddCallCompletedCallback(CallCompletedCallback1);
   env->GetIsolate()->AddCallCompletedCallback(CallCompletedCallback1);
   env->GetIsolate()->AddCallCompletedCallback(CallCompletedCallback2);
+  env->GetIsolate()->AddBeforeCallEnteredCallback(BeforeCallEnteredCallback1);
+  env->GetIsolate()->AddBeforeCallEnteredCallback(BeforeCallEnteredCallback2);
+  env->GetIsolate()->AddBeforeCallEnteredCallback(BeforeCallEnteredCallback1);
   v8::base::OS::Print("--- Script (1) ---\n");
+  callback_fired = 0;
+  before_call_entered_callback_count1 = 0;
+  before_call_entered_callback_count2 = 0;
   Local<Script> script =
       v8::Script::Compile(env.local(), v8_str("recursion(0)")).ToLocalChecked();
   script->Run(env.local()).ToLocalChecked();
   CHECK_EQ(3, callback_fired);
+  CHECK_EQ(4, before_call_entered_callback_count1);
+  CHECK_EQ(4, before_call_entered_callback_count2);
 
   v8::base::OS::Print("\n--- Script (2) ---\n");
   callback_fired = 0;
+  before_call_entered_callback_count1 = 0;
+  before_call_entered_callback_count2 = 0;
   env->GetIsolate()->RemoveCallCompletedCallback(CallCompletedCallback1);
+  env->GetIsolate()->RemoveBeforeCallEnteredCallback(
+      BeforeCallEnteredCallback1);
   script->Run(env.local()).ToLocalChecked();
   CHECK_EQ(2, callback_fired);
+  CHECK_EQ(0, before_call_entered_callback_count1);
+  CHECK_EQ(4, before_call_entered_callback_count2);
 
   v8::base::OS::Print("\n--- Function ---\n");
   callback_fired = 0;
+  before_call_entered_callback_count1 = 0;
+  before_call_entered_callback_count2 = 0;
   Local<Function> recursive_function = Local<Function>::Cast(
       env->Global()->Get(env.local(), v8_str("recursion")).ToLocalChecked());
   v8::Local<Value> args[] = {v8_num(0)};
   recursive_function->Call(env.local(), env->Global(), 1, args)
       .ToLocalChecked();
   CHECK_EQ(2, callback_fired);
+  CHECK_EQ(0, before_call_entered_callback_count1);
+  CHECK_EQ(4, before_call_entered_callback_count2);
 }