test: ignore WPT worker errors after tests finished

This can happen normally, for example in timers tests.

PR-URL: #37626
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Author: targos

test/common/wpt.js

@@ -389,6 +389,11 @@ class WPTRunner {
       });
 
       worker.on('error', (err) => {
+        if (!this.inProgress.has(testFileName)) {
+          // The test is already finished. Ignore errors that occur after it.
+          // This can happen normally, for example in timers tests.
+          return;
+        }
         this.fail(
           testFileName,
           {

test/wpt/status/html/webappapis/timers.json

@@ -1,14 +1 @@
-{
-  "negative-settimeout.any.js": {
-    "fail": "assert_unreached: Reached unreachable code"
-  },
-  "type-long-setinterval.any.js": {
-    "fail": "assert_unreached: Reached unreachable code"
-  },
-  "type-long-settimeout.any.js": {
-    "fail": "assert_unreached: Reached unreachable code"
-  },
-  "negative-setinterval.any.js": {
-    "fail": "assert_unreached: Reached unreachable code"
-  }
-}
+{}