From 782ca9a0c831488e73132246a9b17abb7426b503 Mon Sep 17 00:00:00 2001
From: Onur Temizkan <onur@narval.co.uk>
Date: Thu, 5 Dec 2024 19:20:11 +0000
Subject: [PATCH] fix(test-utils): Don't swallow assertion errors from
 `checkResult` and `checkCollector`.

---
 packages/opentelemetry-test-utils/src/test-fixtures.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/opentelemetry-test-utils/src/test-fixtures.ts b/packages/opentelemetry-test-utils/src/test-fixtures.ts
index 37995ffa04..ff76db0d7b 100644
--- a/packages/opentelemetry-test-utils/src/test-fixtures.ts
+++ b/packages/opentelemetry-test-utils/src/test-fixtures.ts
@@ -236,7 +236,7 @@ export async function runTestFixture(
   const collector = new TestCollector();
   await collector.start();
 
-  return new Promise(resolve => {
+  return new Promise((resolve, reject) => {
     execFile(
       process.execPath,
       opts.argv,
@@ -261,6 +261,8 @@ export async function runTestFixture(
           if (opts.checkCollector) {
             await opts.checkCollector(collector);
           }
+        } catch(err) {
+          reject(err);
         } finally {
           collector.close();
           resolve();