From 5b86a1fa31f90610b66a6afcaff9444a6b24ec8c Mon Sep 17 00:00:00 2001
From: Paul Elliott <paul@vizworkshop.com>
Date: Wed, 25 Mar 2026 11:17:15 -0400
Subject: [PATCH] fix(Testing): match webpack define name to JS global for
 VTKJS_TEST_PATTERN

The webpack DefinePlugin used __TEST_PATTERN__ but Sources/Testing/index.js
reads __VTKJS_TEST_PATTERN__, so the filter was never applied.
---
 karma.conf.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/karma.conf.js b/karma.conf.js
index a3689488a7d..27b07e1e842 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -58,7 +58,7 @@ module.exports = function init(config) {
         new ESLintPlugin(),
         new webpack.DefinePlugin({
           __BASE_PATH__: "'/base'",
-          __TEST_PATTERN__: JSON.stringify(process.env.VTKJS_TEST_PATTERN || ''),
+          __VTKJS_TEST_PATTERN__: JSON.stringify(process.env.VTKJS_TEST_PATTERN || ''),
         }),
         new webpack.ProvidePlugin({ process: ['process/browser'] }),
       ],