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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/nearby_sharing/network_traversal_ice_config_fetcher.h"
#include "base/files/file_util.h"
#include "base/path_service.h"
#include "base/run_loop.h"
#include "base/strings/strcat.h"
#include "base/test/bind.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/task_environment.h"
#include "chrome/common/chrome_paths.h"
#include "google_apis/google_api_keys.h"
#include "services/network/public/cpp/shared_url_loader_factory.h"
#include "services/network/public/cpp/weak_wrapper_shared_url_loader_factory.h"
#include "services/network/test/test_url_loader_factory.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
class NetworkTraversalIceConfigFetcherTest : public testing::Test {
public:
NetworkTraversalIceConfigFetcherTest()
: test_shared_loader_factory_(
base::MakeRefCounted<network::WeakWrapperSharedURLLoaderFactory>(
&test_url_loader_factory_)),
ice_config_fetcher_(test_shared_loader_factory_) {}
~NetworkTraversalIceConfigFetcherTest() override = default;
std::string GetApiUrl() const {
return base::StrCat(
{"https://networktraversal.googleapis.com/v1alpha/iceconfig?key=",
google_apis::GetSharingAPIKey()});
}
void CheckSuccessResponse(
const std::vector<::sharing::mojom::IceServerPtr>& ice_servers) {
ASSERT_EQ(2u, ice_servers.size());
// First response doesnt have credentials.
ASSERT_EQ(1u, ice_servers[0]->urls.size());
ASSERT_FALSE(ice_servers[0]->username);
ASSERT_FALSE(ice_servers[0]->credential);
// Second response has credentials.
ASSERT_EQ(2u, ice_servers[1]->urls.size());
ASSERT_EQ("username", ice_servers[1]->username);
ASSERT_EQ("credential", ice_servers[1]->credential);
}
void GetSuccessResponse(std::string* response) const {
base::FilePath path;
ASSERT_TRUE(base::PathService::Get(chrome::DIR_TEST_DATA, &path));
path = path.AppendASCII("sharing");
ASSERT_TRUE(base::PathExists(path));
ASSERT_TRUE(base::ReadFileToString(
path.AppendASCII("network_traversal_response.json"), response));
}
protected:
base::test::SingleThreadTaskEnvironment task_environment_;
network::TestURLLoaderFactory test_url_loader_factory_;
scoped_refptr<network::SharedURLLoaderFactory> test_shared_loader_factory_;
NetworkTraversalIceConfigFetcher ice_config_fetcher_;
base::HistogramTester histogram_tester_;
};
TEST_F(NetworkTraversalIceConfigFetcherTest, ResponseSuccessful) {
base::RunLoop run_loop;
ice_config_fetcher_.GetIceServers(base::BindLambdaForTesting(
[&](std::vector<::sharing::mojom::IceServerPtr> ice_servers) {
CheckSuccessResponse(ice_servers);
run_loop.Quit();
}));
const std::string expected_api_url = GetApiUrl();
std::string response;
GetSuccessResponse(&response);
ASSERT_TRUE(test_url_loader_factory_.IsPending(expected_api_url, nullptr));
test_url_loader_factory_.AddResponse(expected_api_url, response,
net::HTTP_OK);
run_loop.Run();
const std::string metric_name = "Sharing.WebRtc.IceConfigFetched";
histogram_tester_.ExpectTotalCount(metric_name, 1);
histogram_tester_.ExpectBucketCount(metric_name, 2, 1);
}
TEST_F(NetworkTraversalIceConfigFetcherTest, ResponseError) {
base::RunLoop run_loop;
ice_config_fetcher_.GetIceServers(base::BindLambdaForTesting(
[&](std::vector<::sharing::mojom::IceServerPtr> ice_servers) {
// Makes sure that we at least return default servers in case of an
// error.
EXPECT_FALSE(ice_servers.empty());
run_loop.Quit();
}));
const std::string expected_api_url = GetApiUrl();
ASSERT_TRUE(test_url_loader_factory_.IsPending(expected_api_url, nullptr));
test_url_loader_factory_.AddResponse(expected_api_url, "",
net::HTTP_INTERNAL_SERVER_ERROR);
run_loop.Run();
const std::string metric_name = "Sharing.WebRtc.IceConfigFetched";
histogram_tester_.ExpectTotalCount(metric_name, 1);
histogram_tester_.ExpectBucketCount(metric_name, 0, 1);
}
TEST_F(NetworkTraversalIceConfigFetcherTest, OverlappingCalls) {
base::RunLoop run_loop;
int counter = 2;
auto callback = [&](std::vector<::sharing::mojom::IceServerPtr> ice_servers) {
CheckSuccessResponse(ice_servers);
counter -= 1;
if (counter == 0) {
run_loop.Quit();
}
};
// First call.
ice_config_fetcher_.GetIceServers(base::BindLambdaForTesting(callback));
// Second call overlaps before any responses are processed. This previously
// prevented the first call from ever returning.
ice_config_fetcher_.GetIceServers(base::BindLambdaForTesting(callback));
const std::string expected_api_url = GetApiUrl();
std::string response;
GetSuccessResponse(&response);
ASSERT_TRUE(test_url_loader_factory_.IsPending(expected_api_url, nullptr));
test_url_loader_factory_.AddResponse(expected_api_url, response,
net::HTTP_OK);
run_loop.Run();
const std::string metric_name = "Sharing.WebRtc.IceConfigFetched";
histogram_tester_.ExpectTotalCount(metric_name, 2);
histogram_tester_.ExpectBucketCount(metric_name, 2, 2);
}
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