1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/command_line.h" 6 #include "content/public/common/content_switches.h" 7 #include "content/public/test/render_view_test.h" 8 #include "content/renderer/render_view_impl.h" 9 #include "gin/handle.h" 10 #include "gin/per_isolate_data.h" 11 #include "gin/wrappable.h" 12 #include "testing/gtest/include/gtest/gtest.h" 13 #include "third_party/WebKit/public/web/WebFrame.h" 14 #include "third_party/WebKit/public/web/WebKit.h" 15 #include "third_party/WebKit/public/web/WebView.h" 16 17 namespace content { 18 19 namespace { 20 21 class TestGinObject : public gin::Wrappable<TestGinObject> { 22 public: 23 static gin::WrapperInfo kWrapperInfo; 24 Create(v8::Isolate * isolate,bool * alive)25 static gin::Handle<TestGinObject> Create(v8::Isolate* isolate, bool* alive) { 26 return gin::CreateHandle(isolate, new TestGinObject(alive)); 27 } 28 29 private: TestGinObject(bool * alive)30 TestGinObject(bool* alive) : alive_(alive) { *alive_ = true; } ~TestGinObject()31 virtual ~TestGinObject() { *alive_ = false; } 32 33 bool* alive_; 34 35 DISALLOW_COPY_AND_ASSIGN(TestGinObject); 36 }; 37 38 gin::WrapperInfo TestGinObject::kWrapperInfo = { gin::kEmbedderNativeGin }; 39 RegisterTemplates(v8::Isolate * isolate)40void RegisterTemplates(v8::Isolate* isolate) { 41 gin::PerIsolateData* data = gin::PerIsolateData::From(isolate); 42 43 v8::Handle<v8::ObjectTemplate> templ = v8::ObjectTemplate::New(isolate); 44 templ->SetInternalFieldCount(gin::kNumberOfInternalFields); 45 data->SetObjectTemplate(&TestGinObject::kWrapperInfo, templ); 46 } 47 48 class GinBrowserTest : public RenderViewTest { 49 public: GinBrowserTest()50 GinBrowserTest() {} ~GinBrowserTest()51 virtual ~GinBrowserTest() {} 52 SetUp()53 virtual void SetUp() OVERRIDE { 54 CommandLine::ForCurrentProcess()->AppendSwitchASCII( 55 switches::kJavaScriptFlags, "--expose_gc"); 56 57 RenderViewTest::SetUp(); 58 } 59 60 private: 61 62 DISALLOW_COPY_AND_ASSIGN(GinBrowserTest); 63 }; 64 65 // Test that garbage collection doesn't crash if a gin-wrapped object is 66 // present. TEST_F(GinBrowserTest,GinAndGarbageCollection)67TEST_F(GinBrowserTest, GinAndGarbageCollection) { 68 LoadHTML("<!doctype html>"); 69 70 bool alive = false; 71 72 { 73 v8::Isolate* isolate = blink::mainThreadIsolate(); 74 v8::HandleScope handle_scope(isolate); 75 v8::Context::Scope context_scope( 76 view_->GetWebView()->mainFrame()->mainWorldScriptContext()); 77 78 RegisterTemplates(isolate); 79 80 // We create the object inside a scope so it's not kept alive by a handle 81 // on the stack. 82 TestGinObject::Create(isolate, &alive); 83 } 84 85 CHECK(alive); 86 87 // Should not crash. 88 v8::V8::LowMemoryNotification(); 89 90 CHECK(!alive); 91 } 92 93 } // namespace 94 95 } // namespace content 96