From 7964da1739aaafb8c51d6ae5af73247f2c8bd714 Mon Sep 17 00:00:00 2001
From: Takuto Wada <takuto.wada@gmail.com>
Date: Wed, 13 Nov 2019 09:35:44 +0900
Subject: [PATCH] feat: If the validation function passed to assert.throws() or
 assert.rejects() returns a value other than true, an assertion error will be
 thrown instead of the original error to highlight the programming mistake

refs: https://github.com/nodejs/node/pull/28263
---
 index.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index 97f7ab6..0fd4d66 100644
--- a/index.js
+++ b/index.js
@@ -99,10 +99,17 @@ function wantReject (stackStartFn, thennable, errorHandler, message) {
             return reject(actualRejectionResult);
           }
         }
-        if (errorHandler.call({}, actualRejectionResult) === true) {
+        var handlerFuncResult = errorHandler.call({}, actualRejectionResult);
+        if (handlerFuncResult === true) {
           return resolve();
         } else {
-          return reject(actualRejectionResult);
+          return reject(new AssertionError({
+            actual: actualRejectionResult,
+            expected: errorHandler,
+            message: message || 'The validation function is expected to return "true". Received ' + handlerFuncResult + '\n\nCaught error:\n\n' + actualRejectionResult,
+            operator: stackStartFn.name,
+            stackStartFn: stackStartFn
+          }));
         }
       }
       if (typeof errorHandler === 'object') {