From 2d1b412e5b34aa17b6012a484621e8a6e5e10679 Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Fri, 19 Sep 2025 23:35:31 +0200
Subject: [PATCH] libexpr-tests: Enable when test setup for building succeeds

Accidentally disabled by 9bc218ca3fc98889719684abba73b5d8a168cf3c
---
 src/libexpr-tests/main.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libexpr-tests/main.cc b/src/libexpr-tests/main.cc
index d6b0d0ab9..88a9d6684 100644
--- a/src/libexpr-tests/main.cc
+++ b/src/libexpr-tests/main.cc
@@ -1,15 +1,19 @@
 #include <gtest/gtest.h>
 
 #include "nix/store/tests/test-main.hh"
+#include "nix/util/config-global.hh"
 
 using namespace nix;
 
 int main(int argc, char ** argv)
 {
     auto res = testMainForBuidingPre(argc, argv);
-    if (!res)
+    if (res)
         return res;
 
+    // For pipe operator tests in trivial.cc
+    experimentalFeatureSettings.set("experimental-features", "pipe-operators");
+
     ::testing::InitGoogleTest(&argc, argv);
     return RUN_ALL_TESTS();
 }