Use v8::MicrotasksScope internally in V8RecursionScope.

content/child/v8_value_converter_impl_unittest.cc

 // 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.
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <cmath>
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/stl_util.h"
 #include "base/test/values_test_util.h"
 #include "base/values.h"
 #include "content/child/v8_value_converter_impl.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "third_party/WebKit/public/web/WebScopedMicrotaskSuppression.h"
 #include "v8/include/v8.h"
 
 namespace content {
 
 // To improve the performance of
 // V8ValueConverterImpl::UpdateAndCheckUniqueness, identity hashes of objects
 // are used during checking for duplicates. For testing purposes we need to
 // ignore the hash sometimes. Create this helper object to avoid using identity
 // hashes for the lifetime of the helper.
 class ScopedAvoidIdentityHashForTesting {
@@ skipping 253 matching lines @@
           converter.ToV8Value(original.get(), context), context));
 
   EXPECT_TRUE(original->Equals(copy.get()));
 }
 
 TEST_F(V8ValueConverterImplTest, ObjectExceptions) {
   v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(isolate_, context_);
   v8::Context::Scope context_scope(context);
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
 
   // Set up objects to throw when reading or writing 'foo'.
   const char* source =
       "Object.prototype.__defineSetter__('foo', "
       "    function() { throw new Error('muah!'); });"
       "Object.prototype.__defineGetter__('foo', "
       "    function() { throw new Error('muah!'); });";
 
   v8::Local<v8::Script> script(
       v8::Script::Compile(v8::String::NewFromUtf8(isolate_, source)));
@@ skipping 22 matching lines @@
   EXPECT_FALSE(copy.IsEmpty());
   EXPECT_EQ(2u, copy->GetPropertyNames()->Length());
   EXPECT_EQ("bar", GetString(copy, "bar"));
 }
 
 TEST_F(V8ValueConverterImplTest, ArrayExceptions) {
   v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(isolate_, context_);
   v8::Context::Scope context_scope(context);
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
 
   const char* source = "(function() {"
       "var arr = [];"
       "arr.__defineSetter__(0, "
       "    function() { throw new Error('muah!'); });"
       "arr.__defineGetter__(0, "
       "    function() { throw new Error('muah!'); });"
       "arr[1] = 'bar';"
       "return arr;"
       "})();";
@@ skipping 56 matching lines @@
                 regex,
                 base::Value::TYPE_STRING,
                 scoped_ptr<base::Value>(new base::StringValue("/./")));
 }
 
 TEST_F(V8ValueConverterImplTest, Prototype) {
   v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(isolate_, context_);
   v8::Context::Scope context_scope(context);
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
 
   const char* source = "(function() {"
       "Object.prototype.foo = 'foo';"
       "return {};"
       "})();";
 
   v8::Local<v8::Script> script(
       v8::Script::Compile(v8::String::NewFromUtf8(isolate_, source)));
   v8::Local<v8::Object> object = script->Run().As<v8::Object>();
   ASSERT_FALSE(object.IsEmpty());
 
   V8ValueConverterImpl converter;
   scoped_ptr<base::DictionaryValue> result(
       static_cast<base::DictionaryValue*>(
           converter.FromV8Value(object, context)));
   ASSERT_TRUE(result.get());
   EXPECT_EQ(0u, result->size());
 }
 
 TEST_F(V8ValueConverterImplTest, StripNullFromObjects) {
   v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(isolate_, context_);
   v8::Context::Scope context_scope(context);
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
 
   const char* source = "(function() {"
       "return { foo: undefined, bar: null };"
       "})();";
 
   v8::Local<v8::Script> script(
       v8::Script::Compile(v8::String::NewFromUtf8(isolate_, source)));
   v8::Local<v8::Object> object = script->Run().As<v8::Object>();
   ASSERT_FALSE(object.IsEmpty());
 
@@ skipping 38 matching lines @@
   ASSERT_TRUE(list_result.get());
   EXPECT_EQ(2u, list_result->GetSize());
   EXPECT_TRUE(IsNull(list_result.get(), 1));
 }
 
 TEST_F(V8ValueConverterImplTest, WeirdProperties) {
   v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(isolate_, context_);
   v8::Context::Scope context_scope(context);
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
 
   const char* source = "(function() {"
       "return {"
         "1: 'foo',"
         "'2': 'bar',"
         "true: 'baz',"
         "false: 'qux',"
         "null: 'quux',"
         "undefined: 'oops'"
       "};"
@@ skipping 18 matching lines @@
       "}");
 
   EXPECT_TRUE(expected->Equals(actual.get()));
 }
 
 TEST_F(V8ValueConverterImplTest, ArrayGetters) {
   v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(isolate_, context_);
   v8::Context::Scope context_scope(context);
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
 
   const char* source = "(function() {"
       "var a = [0];"
       "a.__defineGetter__(1, function() { return 'bar'; });"
       "return a;"
       "})();";
 
   v8::Local<v8::Script> script(
       v8::Script::Compile(v8::String::NewFromUtf8(isolate_, source)));
   v8::Local<v8::Array> array = script->Run().As<v8::Array>();
   ASSERT_FALSE(array.IsEmpty());
 
   V8ValueConverterImpl converter;
   scoped_ptr<base::ListValue> result(
       static_cast<base::ListValue*>(converter.FromV8Value(array, context)));
   ASSERT_TRUE(result.get());
   EXPECT_EQ(2u, result->GetSize());
 }
 
 TEST_F(V8ValueConverterImplTest, UndefinedValueBehavior) {
   v8::HandleScope handle_scope(isolate_);
   v8::Local<v8::Context> context =
       v8::Local<v8::Context>::New(isolate_, context_);
   v8::Context::Scope context_scope(context);
+  blink::WebScopedMicrotaskSuppression microtasks_scope;
 
   v8::Local<v8::Object> object;
   {
     const char* source = "(function() {"
         "return { foo: undefined, bar: null, baz: function(){} };"
         "})();";
     v8::Local<v8::Script> script(
         v8::Script::Compile(v8::String::NewFromUtf8(isolate_, source)));
     object = script->Run().As<v8::Object>();
     ASSERT_FALSE(object.IsEmpty());
@@ skipping 308 matching lines @@
   EXPECT_TRUE(
       base::Value::Equals(reference_number_value.get(), number_value.get()));
 
   v8::Local<v8::Primitive> undefined(v8::Undefined(isolate_));
   scoped_ptr<base::Value> undefined_value(
       converter.FromV8Value(undefined, context));
   EXPECT_FALSE(undefined_value);
 }
 
 }  // namespace content