Investigating Failures

There are a few tricks and tools that can help you to understand the reason for test failures, even before you resort to debugging.

Using Detox test artifacts

Artifacts are very powerful tool to understand your test failure, you can easily make a screenshot, video or even hierarchy of your app under test, e.g.:

detox test -c <configuration> --take-screenshots failing --record-videos failing

Learn more about configuration of Detox test artifacts and available CLI options.

Switch to verbose log levels

You can get detailed information about the test execution if you use debug or trace log level:

detox test -c <configuration> -l trace

tip

In most cases we recommend using debug log level to understand the failed test better.

Missing elements

If your tests are failing due to non-existent or invisible elements, you can inspect the native view hierarchy to understand better the failure reason.

More recipes

See Dealing With Problems With Running Tests guide for more recipes.

Debugging

If debugging still seems a viable option, please follow our debugging guide.