fix: log deprecated test.poolOptions if it's set (#9226)

sheremet-va · web-flow · commit f7f6aa8ba901 · 2025-12-10T16:41:54.000+01:00
diff --git a/packages/vitest/src/node/config/resolveConfig.ts b/packages/vitest/src/node/config/resolveConfig.ts
@@ -147,6 +147,10 @@ export function resolveConfig(
     resolved.poolRunner = options.pool
   }
 
+  if ('poolOptions' in resolved) {
+    logger.deprecate('`test.poolOptions` was removed in Vitest 4. All previous `poolOptions` are now top-level options. Please, refer to the migration guide: https://vitest.dev/guide/migration#pool-rework')
+  }
+
   resolved.pool ??= 'forks'
 
   resolved.project = toArray(resolved.project)

Original file line number	Diff line number	Diff line change
`@@ -147,6 +147,10 @@ export function resolveConfig(`
`147`	`147`	`resolved.poolRunner = options.pool`
`148`	`148`	`}`
`149`	`149`
	`150`	`+ if ('poolOptions' in resolved) {`
	`151`	+ logger.deprecate('`test.poolOptions` was removed in Vitest 4. All previous `poolOptions` are now top-level options. Please, refer to the migration guide: https://vitest.dev/guide/migration#pool-rework')
	`152`	`+ }`
	`153`	`+`
`150`	`154`	`resolved.pool ??= 'forks'`
`151`	`155`
`152`	`156`	`resolved.project = toArray(resolved.project)`