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// Copyright (c) 2010 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 "webkit/plugins/ppapi/ppapi_unittest.h"
#include "ppapi/c/ppp_instance.h"
#include "webkit/plugins/ppapi/mock_plugin_delegate.h"
#include "webkit/plugins/ppapi/mock_resource.h"
#include "webkit/plugins/ppapi/ppapi_plugin_instance.h"
#include "webkit/plugins/ppapi/resource_tracker.h"
namespace webkit {
namespace ppapi {
namespace {
class TrackedMockResource : public MockResource {
public:
static int tracked_objects_alive;
TrackedMockResource(PluginInstance* instance) : MockResource(instance) {
tracked_objects_alive++;
}
~TrackedMockResource() {
tracked_objects_alive--;
}
};
int TrackedMockResource::tracked_objects_alive = 0;
} // namespace
class ResourceTrackerTest : public PpapiUnittest {
public:
ResourceTrackerTest() {
}
virtual void SetUp() {
PpapiUnittest::SetUp();
ResourceTracker::SetSingletonOverride(&tracker_);
}
virtual void TearDown() {
ResourceTracker::ClearSingletonOverride();
PpapiUnittest::TearDown();
}
ResourceTracker& tracker() { return tracker_; }
private:
ResourceTracker tracker_;
};
TEST_F(ResourceTrackerTest, Ref) {
ASSERT_EQ(0, TrackedMockResource::tracked_objects_alive);
EXPECT_EQ(0u,
tracker().GetLiveObjectsForInstance(instance()->pp_instance()));
{
scoped_refptr<TrackedMockResource> new_resource(
new TrackedMockResource(instance()));
ASSERT_EQ(1, TrackedMockResource::tracked_objects_alive);
// Since we haven't gotten a PP_Resource, it's not associated with the
// module.
EXPECT_EQ(0u,
tracker().GetLiveObjectsForInstance(instance()->pp_instance()));
}
ASSERT_EQ(0, TrackedMockResource::tracked_objects_alive);
// Make a new resource and get it as a PP_Resource.
PP_Resource resource_id = 0;
{
scoped_refptr<TrackedMockResource> new_resource(
new TrackedMockResource(instance()));
ASSERT_EQ(1, TrackedMockResource::tracked_objects_alive);
resource_id = new_resource->GetReference();
EXPECT_EQ(1u,
tracker().GetLiveObjectsForInstance(instance()->pp_instance()));
// Resource IDs should be consistent.
PP_Resource resource_id_2 = new_resource->GetReference();
ASSERT_EQ(resource_id, resource_id_2);
}
// This time it should not have been deleted since the PP_Resource carries
// a ref.
ASSERT_EQ(1, TrackedMockResource::tracked_objects_alive);
// Now we have two refs, derefing twice should delete the object.
tracker().UnrefResource(resource_id);
ASSERT_EQ(1, TrackedMockResource::tracked_objects_alive);
tracker().UnrefResource(resource_id);
ASSERT_EQ(0, TrackedMockResource::tracked_objects_alive);
}
TEST_F(ResourceTrackerTest, ForceDeleteWithInstance) {
// Make a second instance (the test harness already creates & manages one).
scoped_refptr<PluginInstance> instance2(
new PluginInstance(delegate(), module(),
static_cast<const PPP_Instance*>(
GetMockInterface(PPP_INSTANCE_INTERFACE))));
PP_Instance pp_instance2 = instance2->pp_instance();
// Make two resources and take refs on behalf of the "plugin" for each.
scoped_refptr<TrackedMockResource> resource1(
new TrackedMockResource(instance2));
resource1->GetReference();
scoped_refptr<TrackedMockResource> resource2(
new TrackedMockResource(instance2));
resource2->GetReference();
// Keep an "internal" ref to only the first (the PP_Resource also holds a
// ref to each resource on behalf of the plugin).
resource2 = NULL;
ASSERT_EQ(2, TrackedMockResource::tracked_objects_alive);
EXPECT_EQ(2u, tracker().GetLiveObjectsForInstance(pp_instance2));
// Free the instance, this should release both plugin refs.
instance2 = NULL;
EXPECT_EQ(0u, tracker().GetLiveObjectsForInstance(pp_instance2));
// The resource we have a scoped_refptr to should still be alive, but it
// should have a NULL instance.
ASSERT_FALSE(resource1->instance());
ASSERT_EQ(1, TrackedMockResource::tracked_objects_alive);
resource1 = NULL;
ASSERT_EQ(0, TrackedMockResource::tracked_objects_alive);
}
} // namespace ppapi
} // namespace webkit
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