使用硒4模拟慢速网络条件

Question

我正在使用以下代码来模拟慢速网络条件。问题是，除了在离线或在线模式页面之间切换，即使代码没有错误，任何操作也不会变得更慢。任何帮助将不胜感激。

WebDriver augmentedDriver;
ChromiumNetworkConditions networkConditions;

public void switchToNetworkModeUsingAugmentor(String networkMode, String offline, final WebDriver driver) throws IOException {


    if (augmentedDriver == null && networkConditions == null) {
      augmentedDriver = new Augmenter().augment(driver);
      networkConditions = new ChromiumNetworkConditions();
    }
    int currentDownloadThrouhput = networkConditions.getDownloadThroughput();
    int currentUploadThrouhput = networkConditions.getUploadThroughput();
    Duration currentLatency = networkConditions.getLatency();
    Integer currentLatencyInSeconds = (int) currentLatency.getSeconds();
    LOGGER.info("Current Download throughput {}", currentDownloadThrouhput);
    LOGGER.info("Current Upload throughput {}", currentUploadThrouhput);
    LOGGER.info("Current Latency in seconds {}", currentLatencyInSeconds);


    if (networkMode.equalsIgnoreCase("Super Slow")) {
      networkConditions.setDownloadThroughput(5000);
      networkConditions.setUploadThroughput(5000);
      networkConditions.setOffline(BooleanUtils.toBoolean(offline));
      networkConditions.setLatency(Duration.ofMillis(15000));
    } else if (networkMode.equalsIgnoreCase("Slow")) {
      networkConditions.setDownloadThroughput(5000);
      networkConditions.setUploadThroughput(5000);
      networkConditions.setOffline(BooleanUtils.toBoolean(offline));
      networkConditions.setLatency(Duration.ofMillis(10000));
    }

    ((HasNetworkConditions) augmentedDriver).setNetworkConditions(networkConditions);
    
    currentDownloadThrouhput = networkConditions.getDownloadThroughput();
    currentUploadThrouhput = networkConditions.getUploadThroughput();
    currentLatency = networkConditions.getLatency();
    currentLatencyInSeconds = (int) currentLatency.getSeconds();
    LOGGER.info("Current Download throughput {}", currentDownloadThrouhput);
    LOGGER.info("Current Upload throughput {}", currentUploadThrouhput);
    LOGGER.info("Current Latency in seconds {}", currentLatencyInSeconds);


  }

Answer 1

如果您需要模拟Internet断开连接或任何给定的特定网络条件作为测试案例的一部分，则可以这样做，它可以执行víaselenium和c＃实施下一个代码：

    // Replace V110 with the current version of the Selenium.WebDriver.ChromeDriver NuGet package
    using DevToolsSessionDomains = OpenQA.Selenium.DevTools.V110.DevToolsSessionDomains; 
    using Network = OpenQA.Selenium.DevTools.V110.Network;

...

    var devTools = driver as IDevTools;
    var session = devTools.GetDevToolsSession();
    var domains = session.GetVersionSpecificDomains<DevToolsSessionDomains>();
    domains.Network.Enable(new Network.EnableCommandSettings());
    Network.EmulateNetworkConditionsCommandSettings command = new Network.EmulateNetworkConditionsCommandSettings();
    command.Offline = true; // This line allows you to simulate the disconnection 
    command.Latency = 0; // You can also play with thesse next 3 properties if you want to simulate slow connections
    command.DownloadThroughput = 0;
    command.UploadThroughput = 0;
    domains.Network.EmulateNetworkConditions(command);