Selenium set Browser Chrome in OffLine mode

Question

I am testing a Javascript application in Chrome browser. I want to load the page, and once loaded I would like to switch the browser to offline mode.

Note that I DON´T want to start the browser in offline mode as mentioned here: Selenium: How to set browser in offline mode?. Instead I want to start the browser connected and then switch it off and a specific moment.

Note that I don´t want to do it manually with the mouse, because this is for creating an automated test with Selenium. So I need to be able to send the instruction to go offline somehow with a script.

Is there anyway using Chrome to do that? could I modify the browser configuration executing a javascript? (probably not for security reasons but still wondering)

Thanks very much for your help.

Gabi Nagy · Accepted Answer · 2017-10-03 19:18:21Z

4

In Python, this can be achieved like this:

driver.set_network_conditions(offline=True, latency=5, throughput=500 * 1024)

PS: I am using ChromeDriver 2.32.

answered Oct 3, 2017 at 19:18

Gabi Nagy

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Community · Accepted Answer · 2020-06-20 09:12:55Z

2

As was written in of. release notes:

ChromeDriver v2.26 (2016-12-09)

Resolved issue 984: Extend ChromeDriver capabilities to cover network throttling feature from Chrome DevTools [['OS-All', 'Pri-2']]

Here is full history log about this task. But there is no example, and no answer how it works.

edited Jun 20, 2020 at 9:12

CommunityBot

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answered Apr 10, 2017 at 14:16

Alex.K

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ross · Accepted Answer · 2019-06-10 12:52:40Z

1

In Java, you can use the following code to turn off the WiFi:

protected void disConnectInternet() throws IOException {
Map map = new HashMap();
map.put("offline", true);
map.put("latency", 5);
map.put("download_throughput", 500);
map.put("upload_throughput", 1024);


CommandExecutor executor = ((ChromeDriver)driver).getCommandExecutor();
Response response = executor.execute(
        new Command(((ChromeDriver)driver).getSessionId(), "setNetworkConditions", ImmutableMap.of("network_conditions", ImmutableMap.copyOf(map))));

}

edited Jun 10, 2019 at 12:52

ross

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answered Jun 10, 2019 at 11:44

Akash

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1 Comment

bnieland Over a year ago

How would you reset network conditions afterwards?

Ania · Accepted Answer · 2018-05-22 18:54:27Z

-1

You should be able to switch between online and offline mode using this:

browser.driver.setNetworkConnection(
  typeOrAirplaneMode: 0|1|2|3|4|5|6|7|boolean, wifi?: boolean, data?: boolean
);

More info here: http://webdriver.io/api/mobile/setNetworkConnection.html

answered May 22, 2018 at 18:54

Ania

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1 Comment

Hitmands Over a year ago

the op is about selenium

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