feat(plugin-e2e): fetch e2e-selectors from Grafana at runtime - #2819
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feat(plugin-e2e): fetch e2e-selectors from Grafana at runtime#2819sunker wants to merge 2 commits into
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The selectors fixture fetches the data-only /public/e2e-selectors.json from the Grafana under test, reconstructs the template descriptors into functions locally (no eval) and resolves them. When the instance does not serve the file it falls back to the bundled @grafana/e2e-selectors (quiet on 404, warns on other failures).
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What this PR does / why we need it:
Adds a runtime path to the
selectorsfixture: it fetches the data-only/public/e2e-selectors.jsonfrom the Grafana under test and reconstructs the template descriptors into selectors locally (no eval), falling back to the bundled@grafana/e2e-selectorswhen the file isn't served. This keeps selectors in sync with the Grafana under test without the nightly npm dist-tag.While we validate the approach, the runtime path is behind a
PLUGIN_E2E_RUNTIME_SELECTORStoggle. It defaults to off, so consumers keep using the bundled selectors, and it's enabled only in this repo's Playwright workflows so we can dogfood it before making it the default.Pairs with the grafana/grafana side that serves the file.
Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
Reconstruction only substitutes named {param} placeholders, it never executes fetched content. Unit tests cover
reconstructand the fixture (toggle off uses bundled with no fetch, quiet 404 fallback, loud fallback on failures, per-version cache).