From 9b42ef9586ccb943c8978dc0757c482fc7ef60ba Mon Sep 17 00:00:00 2001
From: Sebastian Bergmann <sb@sebastian-bergmann.de>
Date: Wed, 27 Jan 2021 08:29:45 +0100
Subject: [PATCH] Closes #4573

---
 ChangeLog-9.5.md    |  1 +
 src/Util/Filter.php | 23 +++++++++++------------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/ChangeLog-9.5.md b/ChangeLog-9.5.md
index e74ecd072b9..0a137c7a4ec 100644
--- a/ChangeLog-9.5.md
+++ b/ChangeLog-9.5.md
@@ -6,6 +6,7 @@ All notable changes of the PHPUnit 9.5 release series are documented in this fil
 
 ### Fixed
 
+* [#4573](https://github.com/sebastianbergmann/phpunit/issues/4573): No stack trace printed when PHPUnit is used from PHAR
 * [#4590](https://github.com/sebastianbergmann/phpunit/issues/4590): `--coverage-text` CLI option is documented wrong
 
 ## [9.5.1] - 2021-01-17
diff --git a/src/Util/Filter.php b/src/Util/Filter.php
index c7363443f41..42563937d75 100644
--- a/src/Util/Filter.php
+++ b/src/Util/Filter.php
@@ -15,6 +15,7 @@
 use function is_file;
 use function realpath;
 use function sprintf;
+use function strpos;
 use PHPUnit\Framework\Exception;
 use PHPUnit\Framework\SyntheticError;
 use Throwable;
@@ -56,7 +57,7 @@ public static function getFilteredStacktrace(Throwable $t): string
             );
         }
 
-        $prefix      = defined('__PHPUNIT_PHAR_ROOT__') ? __PHPUNIT_PHAR_ROOT__ : null;
+        $prefix      = defined('__PHPUNIT_PHAR_ROOT__') ? __PHPUNIT_PHAR_ROOT__ : false;
         $excludeList = new ExcludeList;
 
         foreach ($eTrace as $frame) {
@@ -72,28 +73,26 @@ public static function getFilteredStacktrace(Throwable $t): string
         return $filteredStacktrace;
     }
 
-    private static function shouldPrintFrame(array $frame, ?string $prefix, ExcludeList $excludeList): bool
+    private static function shouldPrintFrame(array $frame, $prefix, ExcludeList $excludeList): bool
     {
         if (!isset($frame['file'])) {
             return false;
         }
 
-        // @see https://github.com/sebastianbergmann/phpunit/issues/4033
-        $script = '';
+        $file              = $frame['file'];
+        $fileIsNotPrefixed = $prefix === false || strpos($file, $prefix) !== 0;
 
+        // @see https://github.com/sebastianbergmann/phpunit/issues/4033
         if (isset($GLOBALS['_SERVER']['SCRIPT_NAME'])) {
             $script = realpath($GLOBALS['_SERVER']['SCRIPT_NAME']);
+        } else {
+            $script = '';
         }
 
-        $file = $frame['file'];
-
-        if ($file === $script) {
-            return false;
-        }
-
-        return $prefix === null &&
+        return is_file($file) &&
                self::fileIsExcluded($file, $excludeList) &&
-               is_file($file);
+               $fileIsNotPrefixed &&
+               $file !== $script;
     }
 
     private static function fileIsExcluded(string $file, ExcludeList $excludeList): bool