Introduce a Gin class instead of using global functions to control gin

gin/converter_unittest.cc

 // Copyright 2013 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/converter.h"
 
 #include <limits.h>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "gin/gin.h"
 #include "gin/test/v8_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "v8/include/v8.h"
 
 using v8::Array;
 using v8::Boolean;
 using v8::Handle;
 using v8::HandleScope;
 using v8::Integer;
 using v8::Null;
 using v8::Number;
 using v8::Object;
 using v8::String;
 using v8::Undefined;
 using v8::Value;
 
 namespace gin {
 
 typedef V8Test ConverterTest;
 
 TEST_F(ConverterTest, Bool) {
-  HandleScope handle_scope(isolate_);
+  HandleScope handle_scope(instance_->isolate());
 
-  EXPECT_TRUE(Converter<bool>::ToV8(isolate_, true)->StrictEquals(
+  EXPECT_TRUE(Converter<bool>::ToV8(instance_->isolate(), true)->StrictEquals(
       Boolean::New(true)));
-  EXPECT_TRUE(Converter<bool>::ToV8(isolate_, false)->StrictEquals(
+  EXPECT_TRUE(Converter<bool>::ToV8(instance_->isolate(), false)->StrictEquals(
       Boolean::New(false)));
 
   struct {
     Handle<Value> input;
     bool expected;
   } test_data[] = {
     { Boolean::New(false).As<Value>(), false },
     { Boolean::New(true).As<Value>(), true },
     { Number::New(0).As<Value>(), false },
     { Number::New(1).As<Value>(), true },
@@ skipping 11 matching lines @@
     EXPECT_TRUE(Converter<bool>::FromV8(test_data[i].input, &result));
     EXPECT_EQ(test_data[i].expected, result);
 
     result = true;
     EXPECT_TRUE(Converter<bool>::FromV8(test_data[i].input, &result));
     EXPECT_EQ(test_data[i].expected, result);
   }
 }
 
 TEST_F(ConverterTest, Int32) {
-  HandleScope handle_scope(isolate_);
+  HandleScope handle_scope(instance_->isolate());
 
   int test_data_to[] = {-1, 0, 1};
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_data_to); ++i) {
-    EXPECT_TRUE(Converter<int32_t>::ToV8(isolate_,
+    EXPECT_TRUE(Converter<int32_t>::ToV8(instance_->isolate(),
         test_data_to[i])->StrictEquals(Integer::New(test_data_to[i])));
   }
 
   struct {
     v8::Handle<v8::Value> input;
     bool expect_sucess;
     int expected_result;
   } test_data_from[] = {
     { Boolean::New(false).As<Value>(), false, 0 },
     { Boolean::New(true).As<Value>(), false, 0 },
@@ skipping 13 matching lines @@
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_data_from); ++i) {
     int32_t result = std::numeric_limits<int32_t>::min();
     bool success = Converter<int32_t>::FromV8(test_data_from[i].input, &result);
     EXPECT_EQ(test_data_from[i].expect_sucess, success) << i;
     if (success)
       EXPECT_EQ(test_data_from[i].expected_result, result) << i;
   }
 }
 
 TEST_F(ConverterTest, Vector) {
-  HandleScope handle_scope(isolate_);
+  HandleScope handle_scope(instance_->isolate());
 
   std::vector<int> expected;
   expected.push_back(-1);
   expected.push_back(0);
   expected.push_back(1);
 
   Handle<Array> js_array = Handle<Array>::Cast(
-      Converter<std::vector<int> >::ToV8(isolate_, expected));
+      Converter<std::vector<int> >::ToV8(instance_->isolate(), expected));
   ASSERT_FALSE(js_array.IsEmpty());
   EXPECT_EQ(3u, js_array->Length());
   for (size_t i = 0; i < expected.size(); ++i) {
     EXPECT_TRUE(Integer::New(expected[i])->StrictEquals(
         js_array->Get(static_cast<int>(i))));
   }
 
   std::vector<int> actual;
   EXPECT_TRUE(Converter<std::vector<int> >::FromV8(js_array, &actual));
   EXPECT_EQ(expected, actual);
 }
 
 }  // namespace gin