docs: add guide about debugging Playwright Python #5
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mxschmitt
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I'm not a huge fan of taking a screenshot on failure. We should instead do the video and dom snapshots. Would not want screenshot on failure to be adopted - would make the right solution harder to discover. |
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Pull Request Test Coverage Report for Build 202919278Warning: This coverage report may be inaccurate.This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.
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pavelfeldman
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README.md
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| @@ -115,6 +115,26 @@ def test_visit_admin_dashboard(page: Page): | |||
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| ## Debugging | |||
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| To pause the Pytest test execution and interact with the browser via the developer tools or call Playwright interactively, you can use the `breakpoint()` statement in your code to get a [pdb](https://docs.python.org/3/library/pdb.html) inline REPL. | |||
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Might be worth noting that should be started as headful.
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Currently its hard to debug Playwright Pytest tests on bots when they are failing until screencast is not ready. Many users in the Jest world use such a feature for debugging the tests or getting insights why something is not working when they are failing on the bots.
This implementation is opt-in and will create a screenshot when a test is failing, in the future we can add a screencast recording for each test in the folder too.
Blocked by upstream: microsoft/playwright-python#166
I think we could also add a
--breakpoint-on-errorflag e.g. which will start a REPL once a test is failing. Also opt-in. Then the user can interact with the browser via the headful instance or via the REPL.