Add SPA user journey tests for soft navigations - #2561
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Browsertime recently learned to measure SPA soft navigations, including ones that never touch the network, but the CI coverage was two single-step scripts. Real SPA sessions are multi-step journeys that mix routes with requests, routes rendered entirely from memory, and the occasional full page load, and regressions in the HAR page pairing or the per-step soft navigation slicing only show up in those flows. This turns the SPA test page into a small multi-route app and adds three user journeys: one covering fetch, no-request and image routes, one mixing soft and hard navigations, and one with only zero-request navigations. The journeys wait with the page complete check instead of fixed sleeps, so they also exercise the SPA inactivity logic they are meant to protect. Firefox runs the multi-route journey too, asserting that journeys complete in browsers without the soft navigation API. Co-authored-by: Claude Fable 5 noreply@anthropic.com Change-Id: I81333ebc8478f6930d8dc906d839822e69e75c38
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Browsertime recently learned to measure SPA soft navigations, including ones that never touch the network, but the CI coverage was two single-step scripts. Real SPA sessions are multi-step journeys that mix routes with requests, routes rendered entirely from memory, and the occasional full page load, and regressions in the HAR page pairing or the per-step soft navigation slicing only show up in those flows.
This turns the SPA test page into a small multi-route app and adds three user journeys: one covering fetch, no-request and image routes, one mixing soft and hard navigations, and one with only zero-request navigations. The journeys wait with the page complete check instead of fixed sleeps, so they also exercise the SPA inactivity logic they are meant to protect. Firefox runs the multi-route journey too, asserting that journeys complete in browsers without the soft navigation API.
Co-authored-by: Claude Fable 5 noreply@anthropic.com
Change-Id: I81333ebc8478f6930d8dc906d839822e69e75c38