How to find if we are running unit test in Dart (Flutter)

Question

While calling a function from unit test in Flutter (Dart), how can I find if I am running unit test or real application? I want to pass different data if it's in unit test.

Answer 1

您可以使用以下内容来检查您是否正在运行测试。

Platform.environment.containsKey('FLUTTER_TEST')

Answer 2

The accepted answer is right but if you want to check for a testing environment without breaking your web code, you can use the universal_io package.

Platform.environment.containsKey('FLUTTER_TEST')

On the web, Platform.environment will return an empty map instead of crashing your app.