From b6028951b8a2254d4896b4dd13bcbe380a3d51bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Mirtes?= <ondrej@mirtes.cz>
Date: Mon, 22 Aug 2022 15:00:18 +0200
Subject: [PATCH] Tests bootstrap - require InstalledVersions only if it's not
 declared yet (#11014)

---
 tests/bootstrap.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index e4fa7fa3c..010ded939 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -10,6 +10,7 @@
  * file that was distributed with this source code.
  */
 
+use Composer\InstalledVersions;
 use Composer\Util\Platform;
 
 error_reporting(E_ALL);
@@ -19,7 +20,11 @@ if (function_exists('date_default_timezone_set') && function_exists('date_defaul
 }
 
 require __DIR__.'/../src/bootstrap.php';
-require __DIR__.'/../src/Composer/InstalledVersions.php';
+
+if (!class_exists(InstalledVersions::class, false)) {
+    require __DIR__.'/../src/Composer/InstalledVersions.php';
+}
+
 require __DIR__.'/Composer/Test/TestCase.php';
 
 Platform::putEnv('COMPOSER_TESTS_ARE_RUNNING', '1');