From 6b7ccfcf120e77f20aa22ff96ccf98a994c7d35b Mon Sep 17 00:00:00 2001
From: Ayoub Mabrouk <77799760+Ayoub-Mabrouk@users.noreply.github.com>
Date: Sun, 1 Feb 2026 03:53:38 +0100
Subject: [PATCH] test: add test for normalizeType fallback when mime lookup
 fails (#6894)

Add test to verify that utils.normalizeType correctly defaults to
'application/octet-stream' when mime.lookup() returns null/undefined
for unknown file extensions. This covers the fallback behavior on
line 64 of lib/utils.js and ensures proper handling of unrecognized
MIME types.

Co-authored-by: bjohansebas <103585995+bjohansebas@users.noreply.github.com>
---
 test/utils.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/test/utils.js b/test/utils.js
index fbbf9fff..d1174d01 100644
--- a/test/utils.js
+++ b/test/utils.js
@@ -35,8 +35,15 @@ describe('utils.normalizeType acceptParams method', () => {
       params: {} // No parameters are added since "invalid" has no "="
     });
   });
-});
 
+  it('should default to application/octet-stream when mime lookup fails', () => {
+    const result = utils.normalizeType('unknown-extension-xyz');
+    assert.deepEqual(result, {
+      value: 'application/octet-stream',
+      params: {}
+    });
+  });
+});
 
 describe('utils.setCharset(type, charset)', function () {
   it('should do anything without type', function () {