From 7e1068cc51126ba94a90a80e92c7bbb64e5ddf3b Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@lemstra.org>
Date: Sun, 17 Sep 2023 18:45:01 +0200
Subject: [PATCH] Improved error message.

---
 tests/Magick.NET.Tests/Optimizers/ImageOptimizerTestHelper.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/Magick.NET.Tests/Optimizers/ImageOptimizerTestHelper.cs b/tests/Magick.NET.Tests/Optimizers/ImageOptimizerTestHelper.cs
index 82fce78da1..b965077b0f 100644
--- a/tests/Magick.NET.Tests/Optimizers/ImageOptimizerTestHelper.cs
+++ b/tests/Magick.NET.Tests/Optimizers/ImageOptimizerTestHelper.cs
@@ -66,7 +66,7 @@ private long AssertCompress(string fileName, Func<FileInfo, bool> action, bool r
         Assert.Equal(resultIsSmaller, result);
 
         if (resultIsSmaller)
-            Assert.True(after < before);
+            Assert.True(after < before, $"Expected {after} to be smaller than {before}.");
         else
             Assert.Equal(before, after);