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Flaky test: Rerendering.cy.jsx in @cypress/vite-dev-server sometimes fails with React being null #30881

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AtofStryker opened this issue Jan 15, 2025 · 0 comments · May be fixed by #30908
Open

Flaky test: Rerendering.cy.jsx in @cypress/vite-dev-server sometimes fails with React being null #30881

AtofStryker opened this issue Jan 15, 2025 · 0 comments · May be fixed by #30908
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process: flaky test Related to test(s) that have flake in our internal tests type: chore Work is required w/ no deliverable to end user

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@AtofStryker
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Link to Cypress Cloud or CircleCI failure

https://app.circleci.com/pipelines/github/cypress-io/cypress/66544/workflows/887d2da9-a5aa-4b08-94b4-4e82a75461b5/jobs/2761701/tests#failed-test-0

Link to failing test in GitHub

N/A

Analysis

When running the vite_dev_server_fresh_spec inside cypress system tests, the @cypress/vite-dev-server react executes all of the specs for vite_VERSION seems to fail on the Rerendering.cy.jsx test sometimes. Based on the error, it looks like React is not hydrated into the spec file or is hydrated as null, which throws the following error:

Image

Cypress Version

14.0.0

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@jennifer-shehane jennifer-shehane added process: flaky test Related to test(s) that have flake in our internal tests type: chore Work is required w/ no deliverable to end user labels Jan 15, 2025
@AtofStryker AtofStryker linked a pull request Jan 17, 2025 that will close this issue
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process: flaky test Related to test(s) that have flake in our internal tests type: chore Work is required w/ no deliverable to end user
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chore: attempt to fix vite flake cypress-io/cypress
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@jennifer-shehane @AtofStryker