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// Copyright (c) 2016 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 <memory>
#include <string>
#include "base/run_loop.h"
#include "net/base/net_errors.h"
#include "net/base/test_completion_callback.h"
#include "net/http/http_cache_lookup_manager.h"
#include "net/http/http_transaction_test_util.h"
#include "net/http/mock_http_cache.h"
#include "net/test/gtest_util.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using net::test::IsOk;
namespace net {
namespace {
class MockServerPushHelper : public ServerPushDelegate::ServerPushHelper {
public:
explicit MockServerPushHelper(const GURL& url) : request_url_(url) {}
const GURL& GetURL() const override { return request_url_; }
MOCK_METHOD0(Cancel, void());
private:
const GURL request_url_;
};
std::unique_ptr<MockTransaction> CreateMockTransaction(const GURL& url) {
MockTransaction mock_trans = {
url.spec().c_str(), "GET", base::Time(), "", LOAD_NORMAL,
"HTTP/1.1 200 OK",
"Date: Wed, 28 Nov 2007 09:40:09 GMT\n"
"Last-Modified: Wed, 28 Nov 2007 00:40:09 GMT\n",
base::Time(), "<html><body>Google Blah Blah</body></html>",
TEST_MODE_NORMAL, nullptr, nullptr, nullptr, 0, 0, OK};
return std::make_unique<MockTransaction>(mock_trans);
}
void PopulateCacheEntry(HttpCache* cache, const GURL& request_url) {
TestCompletionCallback callback;
std::unique_ptr<MockTransaction> mock_trans =
CreateMockTransaction(request_url);
AddMockTransaction(mock_trans.get());
MockHttpRequest request(*(mock_trans.get()));
std::unique_ptr<HttpTransaction> trans;
int rv = cache->CreateTransaction(DEFAULT_PRIORITY, &trans);
EXPECT_THAT(rv, IsOk());
ASSERT_TRUE(trans.get());
rv = trans->Start(&request, callback.callback(), NetLogWithSource());
base::RunLoop().RunUntilIdle();
if (rv == ERR_IO_PENDING)
rv = callback.WaitForResult();
ASSERT_EQ(mock_trans->start_return_code, rv);
if (OK != rv)
return;
const HttpResponseInfo* response = trans->GetResponseInfo();
ASSERT_TRUE(response);
std::string content;
rv = ReadTransaction(trans.get(), &content);
EXPECT_THAT(rv, IsOk());
std::string expected(mock_trans->data);
EXPECT_EQ(expected, content);
RemoveMockTransaction(mock_trans.get());
}
} // namespace
TEST(HttpCacheLookupManagerTest, ServerPushMissCache) {
MockHttpCache mock_cache;
HttpCacheLookupManager push_delegate(mock_cache.http_cache());
GURL request_url("http://www.example.com/pushed.jpg");
std::unique_ptr<MockServerPushHelper> push_helper =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr = push_helper.get();
// Receive a server push and should not cancel the push.
EXPECT_CALL(*push_helper_ptr, Cancel()).Times(0);
push_delegate.OnPush(std::move(push_helper), NetLogWithSource());
base::RunLoop().RunUntilIdle();
// Make sure no network transaction is created.
EXPECT_EQ(0, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(0, mock_cache.disk_cache()->open_count());
EXPECT_EQ(0, mock_cache.disk_cache()->create_count());
}
TEST(HttpCacheLookupManagerTest, ServerPushDoNotCreateCacheEntry) {
MockHttpCache mock_cache;
HttpCacheLookupManager push_delegate(mock_cache.http_cache());
GURL request_url("http://www.example.com/pushed.jpg");
std::unique_ptr<MockServerPushHelper> push_helper =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr = push_helper.get();
// Receive a server push and should not cancel the push.
EXPECT_CALL(*push_helper_ptr, Cancel()).Times(0);
push_delegate.OnPush(std::move(push_helper), NetLogWithSource());
base::RunLoop().RunUntilIdle();
// Receive another server push for the same url.
std::unique_ptr<MockServerPushHelper> push_helper2 =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr2 = push_helper2.get();
EXPECT_CALL(*push_helper_ptr2, Cancel()).Times(0);
push_delegate.OnPush(std::move(push_helper2), NetLogWithSource());
base::RunLoop().RunUntilIdle();
// Verify no network transaction is created.
EXPECT_EQ(0, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(0, mock_cache.disk_cache()->open_count());
// Verify no cache entry is created for server push lookup.
EXPECT_EQ(0, mock_cache.disk_cache()->create_count());
}
TEST(HttpCacheLookupManagerTest, ServerPushHitCache) {
MockHttpCache mock_cache;
HttpCacheLookupManager push_delegate(mock_cache.http_cache());
GURL request_url("http://www.example.com/pushed.jpg");
// Populate the cache entry so that the cache lookup for server push hits.
PopulateCacheEntry(mock_cache.http_cache(), request_url);
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(0, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
// Add another mock transaction since the OnPush will create a new cache
// transaction.
std::unique_ptr<MockTransaction> mock_trans =
CreateMockTransaction(request_url);
AddMockTransaction(mock_trans.get());
std::unique_ptr<MockServerPushHelper> push_helper =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr = push_helper.get();
// Receive a server push and should cancel the push.
EXPECT_CALL(*push_helper_ptr, Cancel()).Times(1);
push_delegate.OnPush(std::move(push_helper), NetLogWithSource());
base::RunLoop().RunUntilIdle();
// Make sure no new net layer transaction is created.
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(1, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
RemoveMockTransaction(mock_trans.get());
}
// Test when a server push is received while the HttpCacheLookupManager has a
// pending lookup transaction for the same URL, the new server push will not
// send a new lookup transaction and should not be canceled.
TEST(HttpCacheLookupManagerTest, ServerPushPendingLookup) {
MockHttpCache mock_cache;
HttpCacheLookupManager push_delegate(mock_cache.http_cache());
GURL request_url("http://www.example.com/pushed.jpg");
// Populate the cache entry so that the cache lookup for server push hits.
PopulateCacheEntry(mock_cache.http_cache(), request_url);
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(0, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
// Add another mock transaction since the OnPush will create a new cache
// transaction.
std::unique_ptr<MockTransaction> mock_trans =
CreateMockTransaction(request_url);
AddMockTransaction(mock_trans.get());
std::unique_ptr<MockServerPushHelper> push_helper =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr = push_helper.get();
// Receive a server push and should cancel the push eventually.
EXPECT_CALL(*push_helper_ptr, Cancel()).Times(1);
push_delegate.OnPush(std::move(push_helper), NetLogWithSource());
std::unique_ptr<MockServerPushHelper> push_helper2 =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr2 = push_helper2.get();
// Receive another server push and should not cancel the push.
EXPECT_CALL(*push_helper_ptr2, Cancel()).Times(0);
push_delegate.OnPush(std::move(push_helper2), NetLogWithSource());
base::RunLoop().RunUntilIdle();
// Make sure no new net layer transaction is created.
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(1, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
RemoveMockTransaction(mock_trans.get());
}
// Test the server push lookup is based on the full url.
TEST(HttpCacheLookupManagerTest, ServerPushLookupOnUrl) {
MockHttpCache mock_cache;
HttpCacheLookupManager push_delegate(mock_cache.http_cache());
GURL request_url("http://www.example.com/pushed.jpg?u=0");
GURL request_url2("http://www.example.com/pushed.jpg?u=1");
// Populate the cache entry so that the cache lookup for server push hits.
PopulateCacheEntry(mock_cache.http_cache(), request_url);
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(0, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
// Add another mock transaction since the OnPush will create a new cache
// transaction.
std::unique_ptr<MockTransaction> mock_trans =
CreateMockTransaction(request_url);
AddMockTransaction(mock_trans.get());
std::unique_ptr<MockServerPushHelper> push_helper =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr = push_helper.get();
// Receive a server push and should cancel the push eventually.
EXPECT_CALL(*push_helper_ptr, Cancel()).Times(1);
push_delegate.OnPush(std::move(push_helper), NetLogWithSource());
// Run until the lookup transaction finishes for the first server push.
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(1, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
RemoveMockTransaction(mock_trans.get());
AddMockTransaction(mock_trans.get());
// Receive the second server push with same url after the first lookup
// finishes, and should cancel the push.
std::unique_ptr<MockServerPushHelper> push_helper2 =
std::make_unique<MockServerPushHelper>(request_url);
MockServerPushHelper* push_helper_ptr2 = push_helper2.get();
EXPECT_CALL(*push_helper_ptr2, Cancel()).Times(1);
push_delegate.OnPush(std::move(push_helper2), NetLogWithSource());
// Run until the lookup transaction finishes for the second server push.
base::RunLoop().RunUntilIdle();
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(2, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
RemoveMockTransaction(mock_trans.get());
std::unique_ptr<MockTransaction> mock_trans3 =
CreateMockTransaction(request_url2);
AddMockTransaction(mock_trans3.get());
// Receive the third server push with a different url after lookup for a
// similar server push has been completed, should not cancel the push.
std::unique_ptr<MockServerPushHelper> push_helper3 =
std::make_unique<MockServerPushHelper>(request_url2);
MockServerPushHelper* push_helper_ptr3 = push_helper3.get();
EXPECT_CALL(*push_helper_ptr3, Cancel()).Times(0);
push_delegate.OnPush(std::move(push_helper3), NetLogWithSource());
base::RunLoop().RunUntilIdle();
// Make sure no new net layer transaction is created.
EXPECT_EQ(1, mock_cache.network_layer()->transaction_count());
EXPECT_EQ(2, mock_cache.disk_cache()->open_count());
EXPECT_EQ(1, mock_cache.disk_cache()->create_count());
RemoveMockTransaction(mock_trans3.get());
}
} // namespace net
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