From f58e9439daddcd37aad6555a5860e39771191798 Mon Sep 17 00:00:00 2001
From: Dan Wallis <dan@wallis.nz>
Date: Mon, 18 Sep 2023 13:56:30 +0100
Subject: [PATCH] Change detection of /etc/shadow

This is a work-around for file_exists() not working when infection/include-interceptor is loaded.
---
 test/ComposerRequireCheckerTest/JsonLoaderTest.php | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/test/ComposerRequireCheckerTest/JsonLoaderTest.php b/test/ComposerRequireCheckerTest/JsonLoaderTest.php
index 05d4b6c1..1c4b8034 100644
--- a/test/ComposerRequireCheckerTest/JsonLoaderTest.php
+++ b/test/ComposerRequireCheckerTest/JsonLoaderTest.php
@@ -9,7 +9,9 @@
 use ComposerRequireChecker\JsonLoader;
 use PHPUnit\Framework\TestCase;
 
-use function file_exists;
+use function is_readable;
+
+use const PHP_OS_FAMILY;
 
 /** @covers \ComposerRequireChecker\JsonLoader */
 final class JsonLoaderTest extends TestCase
@@ -35,8 +37,8 @@ public function testHasErrorWithInvalidFile(): void
     public function testHasErrorWithUnreadableFile(): void
     {
         $path = '/etc/shadow';
-        if (! file_exists($path)) {
-            $this->markTestSkipped('This system does not have ' . $path);
+        if (PHP_OS_FAMILY !== 'Linux' || is_readable($path)) {
+            $this->markTestSkipped('This test relies on ' . $path . ' existing, but being unreadable.');
         }
 
         $this->expectException(NotReadable::class);