net_info_browsertest.cc | Explore in Territory

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <cmath>  // For std::modf.
#include <map>
#include <string>

#include "base/command_line.h"
#include "base/run_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/test/metrics/histogram_tester.h"
#include "build/build_config.h"
#include "content/browser/network/network_quality_observer_impl.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/browser_test.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/shell/browser/shell.h"
#include "net/base/network_change_notifier.h"
#include "net/base/network_change_notifier_factory.h"
#include "net/dns/mock_host_resolver.h"
#include "net/log/test_net_log.h"
#include "net/nqe/effective_connection_type.h"
#include "services/network/test/test_network_quality_tracker.h"

namespace {

// Returns the total count of samples in |histogram|.
int GetTotalSampleCount(base::HistogramTester* tester,
                        const std::string& histogram) { … }

void VerifyRtt(base::TimeDelta expected_rtt, int32_t got_rtt_milliseconds) { … }

void VerifyDownlinkKbps(double expected_kbps, double got_kbps) { … }

class MockNetworkChangeNotifierWifi : public net::NetworkChangeNotifier { … };

}  // namespace

namespace content {

class NetInfoBrowserTest : public content::ContentBrowserTest { … };

// Make sure the type is correct when the page is first opened.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, VerifyNetworkStateInitialized) { … }

// Make sure that type changes in the browser make their way to
// navigator.connection.type.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, NetworkChangePlumbsToNavigator) { … }

// Make sure that type changes in the browser make their way to
// navigator.isOnline.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, IsOnline) { … }

// Creating a new render view shouldn't reinitialize Blink's
// NetworkStateNotifier. See https://crbug.com/535081.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, TwoRenderViewsInOneProcess) { … }

// Verify that when the network quality notifications are not sent, the
// Javascript API returns a valid estimate that is multiple of 50 msec and 50
// kbps.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest,
                       NetworkQualityEstimatorNotInitialized) { … }

// Make sure the changes in the effective connection type are notified to the
// render thread.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest,
                       EffectiveConnectionTypeChangeNotified) { … }

// Make sure the changes in the network quality are notified to the render
// thread, and the changed network quality is accessible via Javascript API.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, NetworkQualityChangeNotified) { … }

// Make sure the changes in the network quality are rounded to the nearest
// 50 milliseconds or 50 kbps.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, NetworkQualityChangeRounded) { … }

// Make sure the network quality are rounded down when it exceeds the upper
// limit.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, NetworkQualityChangeUpperLimit) { … }

// Make sure the noise added to the network quality varies with the hostname.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, NetworkQualityRandomized) { … }

// Make sure the minor changes (<10%) in the network quality are not notified.
IN_PROC_BROWSER_TEST_F(NetInfoBrowserTest, NetworkQualityChangeNotNotified) { … }

}  // namespace content
chromium/content/browser/net_info_browsertest.cc
