From 50f410c177488c7d803e52331a53853a6a6c4cd3 Mon Sep 17 00:00:00 2001
From: Andrew Murray <radarhere@users.noreply.github.com>
Date: Sat, 31 Dec 2022 13:06:46 +1100
Subject: [PATCH] Only compare bytes once

---
 Tests/helper.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/Tests/helper.py b/Tests/helper.py
index 62f07b9b6..fd97a5614 100644
--- a/Tests/helper.py
+++ b/Tests/helper.py
@@ -87,7 +87,10 @@ def assert_image(im, mode, size, msg=None):
 def assert_image_equal(a, b, msg=None):
     assert a.mode == b.mode, msg or f"got mode {repr(a.mode)}, expected {repr(b.mode)}"
     assert a.size == b.size, msg or f"got size {repr(a.size)}, expected {repr(b.size)}"
-    if a.tobytes() != b.tobytes():
+
+    try:
+        assert a.tobytes() == b.tobytes(), msg or "got different content"
+    except AssertionError:
         if HAS_UPLOADER:
             try:
                 url = test_image_results.upload(a, b)
@@ -95,7 +98,7 @@ def assert_image_equal(a, b, msg=None):
             except Exception:
                 pass
 
-        assert a.tobytes() == b.tobytes(), msg or "got different content"
+        raise
 
 
 def assert_image_equal_tofile(a, filename, msg=None, mode=None):