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test(windows): vary HMR polling writes

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This commit is contained in:
Tianyi Cui
2026-08-09 17:20:58 +08:00
parent e94cacd088
commit 95eb4bcf40
1 changed files with 6 additions and 2 deletions
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8
packages/boot/app-boot/tests/hmr-config.spec.ts
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@@ -48,9 +48,13 @@ describe('HMR exact config paths', () => {
try { try {
const deadline = Date.now() + 20_000 const deadline = Date.now() + 20_000
for (let generation = 1; !observed.includes(expected); generation += 1) { for (let generation = 1; !observed.includes(expected); generation += 1) {
if (Date.now() >= deadline) throw new Error('HMR did not observe a module change through the alias') if (Date.now() >= deadline) {
throw new Error(`HMR did not observe ${expected} through the alias; observed ${JSON.stringify(observed)}`)
}
// The watch base, not the writer spelling, is the alias under test. // The watch base, not the writer spelling, is the alias under test.
writeFileSync(filename, `export const generation = ${generation}\n`) // Grow the file on every write: polling must not depend on timestamp
// precision when several generations land inside one filesystem tick.
writeFileSync(filename, `export const generation = ${generation}\n${' '.repeat(generation)}\n`)
// Leave Chokidar's atomic-write window idle so one coalesced change can publish. // Leave Chokidar's atomic-write window idle so one coalesced change can publish.
await new Promise(resolve => setTimeout(resolve, 250)) await new Promise(resolve => setTimeout(resolve, 250))
} }