test: fix flaky test-vm-timeout-escape-nexttick

Fixes: nodejs#24120
Trott · Jun 27, 2019 · 6810113 · 6810113
1 parent 6045fbb
commit 6810113
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Showing 2 changed files with 17 additions and 15 deletions.
diff --git a/test/known_issues/known_issues.status b/test/known_issues/known_issues.status
@@ -22,5 +22,3 @@ test-vm-timeout-escape-promise: PASS,FLAKY
 [$system==aix]
 
 [$arch==arm]
-# https://github.com/nodejs/node/issues/24120
-test-vm-timeout-escape-nexttick: PASS,FLAKY
diff --git a/test/known_issues/test-vm-timeout-escape-nexttick.js b/test/known_issues/test-vm-timeout-escape-nexttick.js
@@ -27,16 +27,20 @@ function loop() {
   }
 }
 
-assert.throws(() => {
-  vm.runInNewContext(
-    'nextTick(loop); loop();',
-    {
-      hrtime,
-      nextTick,
-      loop
-    },
-    { timeout: common.platformTimeout(10) }
-  );
-}, {
-  code: 'ERR_SCRIPT_EXECUTION_TIMEOUT'
-});
+// The bug won't happen 100% reliably so run the test a small number of times to
+// make sure we catch it if the bug exists.
+for (let i = 0; i < 4; i++) {
+  assert.throws(() => {
+    vm.runInNewContext(
+      'nextTick(loop); loop();',
+      {
+        hrtime,
+        nextTick,
+        loop
+      },
+      { timeout: common.platformTimeout(10) }
+    );
+  }, {
+    code: 'ERR_SCRIPT_EXECUTION_TIMEOUT'
+  });
+}