content/renderer/gin_browsertest.cc

   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
  25   static gin::Handle<TestGinObject> Create(v8::Isolate* isolate, bool* alive) {
  26     return gin::CreateHandle(isolate, new TestGinObject(alive));
  27   }
  28
  29  private:
  30   TestGinObject(bool* alive) : alive_(alive) { *alive_ = true; }
  31   ~TestGinObject() override { *alive_ = false; }
  32
  33   bool* alive_;
  34
  35   DISALLOW_COPY_AND_ASSIGN(TestGinObject);
  36 };
  37
  38 gin::WrapperInfo TestGinObject::kWrapperInfo = { gin::kEmbedderNativeGin };
  39
  40 class GinBrowserTest : public RenderViewTest {
  41  public:
  42   GinBrowserTest() {}
  43   ~GinBrowserTest() override {}
  44
  45   void SetUp() override {
  46     base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
  47         switches::kJavaScriptFlags, "--expose_gc");
  48
  49     RenderViewTest::SetUp();
  50   }
  51
  52  private:
  53
  54   DISALLOW_COPY_AND_ASSIGN(GinBrowserTest);
  55 };
  56
  57 // Test that garbage collection doesn't crash if a gin-wrapped object is
  58 // present.
  59 TEST_F(GinBrowserTest, GinAndGarbageCollection) {
  60   LoadHTML("<!doctype html>");
  61
  62   bool alive = false;
  63
  64   {
  65     v8::Isolate* isolate = blink::mainThreadIsolate();
  66     v8::HandleScope handle_scope(isolate);
  67     v8::Context::Scope context_scope(
  68         view_->GetWebView()->mainFrame()->mainWorldScriptContext());
  69
  70     // We create the object inside a scope so it's not kept alive by a handle
  71     // on the stack.
  72     TestGinObject::Create(isolate, &alive);
  73   }
  74
  75   CHECK(alive);
  76
  77   // Should not crash.
  78   blink::mainThreadIsolate()->LowMemoryNotification();
  79
  80   CHECK(!alive);
  81 }
  82
  83 } // namespace
  84
  85 }  // namespace content