diff --git a/test/common.js b/test/common.js
index a3540cb11aaa9f..2d61fb0dc58012 100644
--- a/test/common.js
+++ b/test/common.js
@@ -677,3 +677,9 @@ exports.getArrayBufferViews = function getArrayBufferViews(buf) {
   }
   return out;
 };
+
+// Crash the process on unhandled rejections.
+exports.crashOnUnhandledRejection = function() {
+  process.on('unhandledRejection',
+             (err) => process.nextTick(() => { throw err; }));
+};