How to test?

[shinayser]

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Hello!!!

I am developing an app that uses SvgPicture.network but I'm having a hard time trying to properly write some widget tests.

Anyone gots any advice?

[shinayser]

Wold like to share a way of testing that I've found:

just add HttpOverrides.global = null; to your setUpAll of your tests.

[MuTe33]

By default, no network calls are allowed in tests. You can overwrite this behaviour like this:

HttpOverrides.global = _EnableHttpOverrides();

class _EnableHttpOverrides extends HttpOverrides {}

[Momy93]

I had the same issue, leaving my solution here in case it helps you too.

[ikbendewilliam]

@shinayser What you can do instead is have a switch to see if you are in a test and simply render a Container instead.

if (Platform.environment.containsKey('FLUTTER_TEST')) { 
return Container(color: Colors.red);
} 
return SvgPicture.network(...

Or as mentioned above, enable the network calls

[dnfield]

Do not write unit tests that actually fetch from the network, they will be flaky :)

[dnfield]

(Instead, mock out the HTTP client and just provide some asset)