Fixed test cases for phar. (#5732)

Author: limingxinleo

co-phpunit

@@ -17,23 +17,30 @@ if (version_compare('7.3.0', PHP_VERSION, '>')) {
     fwrite(STDERR, sprintf('This version of PHPUnit requires PHP >= 7.3.' . PHP_EOL . 'You are using PHP %s (%s).' . PHP_EOL, PHP_VERSION, PHP_BINARY));
     die(1);
 }
-foreach (['dom', 'json', 'libxml', 'mbstring', 'tokenizer', 'xml', 'xmlwriter'] as $extension) {
-    if (extension_loaded($extension)) {
-        continue;
-    }
-    fwrite(STDERR, sprintf('PHPUnit requires the "%s" extension.' . PHP_EOL, $extension));
+$requiredExtensions = ['dom', 'json', 'libxml', 'mbstring', 'tokenizer', 'xml', 'xmlwriter'];
+$unavailableExtensions = array_filter($requiredExtensions, static function ($extension) {
+    return !extension_loaded($extension);
+});
+if ([] !== $unavailableExtensions) {
+    fwrite(STDERR, sprintf('PHPUnit requires the "%s" extensions, but the "%s" %s not available.' . PHP_EOL, implode('", "', $requiredExtensions), implode('", "', $unavailableExtensions), count($unavailableExtensions) === 1 ? 'extension is' : 'extensions are'));
     die(1);
 }
+unset($requiredExtensions, $unavailableExtensions);
 if (!ini_get('date.timezone')) {
     ini_set('date.timezone', 'UTC');
 }
-foreach (array(__DIR__ . '/../../autoload.php', __DIR__ . '/../vendor/autoload.php', __DIR__ . '/vendor/autoload.php') as $file) {
-    if (file_exists($file)) {
-        define('PHPUNIT_COMPOSER_INSTALL', $file);
-        break;
+if (isset($GLOBALS['_composer_autoload_path'])) {
+    define('PHPUNIT_COMPOSER_INSTALL', $GLOBALS['_composer_autoload_path']);
+    unset($GLOBALS['_composer_autoload_path']);
+} else {
+    foreach (array(__DIR__ . '/../../autoload.php', __DIR__ . '/../vendor/autoload.php', __DIR__ . '/vendor/autoload.php') as $file) {
+        if (file_exists($file)) {
+            define('PHPUNIT_COMPOSER_INSTALL', $file);
+            break;
+        }
     }
+    unset($file);
 }
-unset($file);
 if (!defined('PHPUNIT_COMPOSER_INSTALL')) {
     fwrite(STDERR, 'You need to set up the project dependencies using Composer:' . PHP_EOL . PHP_EOL . '    composer install' . PHP_EOL . PHP_EOL . 'You can learn all about Composer on https://getcomposer.org/.' . PHP_EOL);
     die(1);