bug #37959 [PhpunitBridge] Fix deprecation type detection (when several autoload files are used) (l-vo)

This PR was merged into the 4.4 branch.

Discussion
----------

[PhpunitBridge] Fix deprecation type detection (when several autoload files are used)

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       |
| License       | MIT
| Doc PR        |

Several autoload files are supported by the PHPUnit Bridge but when the internal paths are registered (for deprecation type detection), the paths (from prefixes) of the last autoload file override the paths previously registered. This PR fixes this bug.

Commits
-------

cc7b6c5e5a [PhpunitBridge] Fix deprecation type detection

src/Symfony/Bridge/PhpUnit/DeprecationErrorHandler/Deprecation.php

@@ -266,7 +266,10 @@ class Deprecation
                     if (file_exists($v.'/composer/installed.json')) {
                         self::$vendors[] = $v;
                         $loader = require $v.'/autoload.php';
-                        $paths = self::getSourcePathsFromPrefixes(array_merge($loader->getPrefixes(), $loader->getPrefixesPsr4()));
+                        $paths = self::addSourcePathsFromPrefixes(
+                            array_merge($loader->getPrefixes(), $loader->getPrefixesPsr4()),
+                            $paths
+                        );
                     }
                 }
             }
@@ -282,15 +285,17 @@ class Deprecation
         return self::$vendors;
     }
 
-    private static function getSourcePathsFromPrefixes(array $prefixesByNamespace)
+    private static function addSourcePathsFromPrefixes(array $prefixesByNamespace, array $paths)
     {
         foreach ($prefixesByNamespace as $prefixes) {
             foreach ($prefixes as $prefix) {
                 if (false !== realpath($prefix)) {
-                    yield realpath($prefix);
+                    $paths[] = realpath($prefix);
                 }
             }
         }
+
+        return $paths;
     }
 
     /**

src/Symfony/Bridge/PhpUnit/Tests/DeprecationErrorHandler/fake_app/AppService.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Services;
+
+use acme\lib\SomeService;
+use foo\lib\SomeOtherService;
+
+final class AppService
+{
+    public function directDeprecations()
+    {
+        $service1 = new SomeService();
+        $service1->deprecatedApi();
+
+        $service2 = new SomeOtherService();
+        $service2->deprecatedApi();
+    }
+}
+

src/Symfony/Bridge/PhpUnit/Tests/DeprecationErrorHandler/fake_vendor/composer/autoload_real.php

@@ -9,14 +9,40 @@ class ComposerLoaderFake
 
     public function getPrefixesPsr4()
     {
-        return [];
+        return [
+            'App\\Services\\' => [__DIR__.'/../../fake_app/'],
+            'acme\\lib\\' => [__DIR__.'/../acme/lib/'],
+        ];
+    }
+
+    public function loadClass($className)
+    {
+        foreach ($this->getPrefixesPsr4() as $prefix => $baseDirs) {
+            if (strpos($className, $prefix) !== 0) {
+                continue;
+            }
+
+            foreach ($baseDirs as $baseDir) {
+                $file = str_replace([$prefix, '\\'], [$baseDir, '/'], $className.'.php');
+                if (file_exists($file)) {
+                    require $file;
+                }
+            }
+        }
     }
 }
 
 class ComposerAutoloaderInitFake
 {
+    private static $loader;
+
     public static function getLoader()
     {
-        return new ComposerLoaderFake();
+        if (null === self::$loader) {
+            self::$loader = new ComposerLoaderFake();
+            spl_autoload_register([self::$loader, 'loadClass']);
+        }
+
+        return self::$loader;
     }
 }

src/Symfony/Bridge/PhpUnit/Tests/DeprecationErrorHandler/fake_vendor_bis/autoload.php

@@ -0,0 +1,5 @@
+<?php
+
+require_once __DIR__.'/composer/autoload_real.php';
+
+return ComposerAutoloaderInitFakeBis::getLoader();

src/Symfony/Bridge/PhpUnit/Tests/DeprecationErrorHandler/fake_vendor_bis/composer/autoload_real.php

@@ -0,0 +1,47 @@
+<?php
+
+class ComposerLoaderFakeBis
+{
+    public function getPrefixes()
+    {
+        return [];
+    }
+
+    public function getPrefixesPsr4()
+    {
+        return [
+            'foo\\lib\\' => [__DIR__.'/../foo/lib/'],
+        ];
+    }
+
+    public function loadClass($className)
+    {
+        foreach ($this->getPrefixesPsr4() as $prefix => $baseDirs) {
+            if (strpos($className, $prefix) !== 0) {
+                continue;
+            }
+
+            foreach ($baseDirs as $baseDir) {
+                $file = str_replace([$prefix, '\\'], [$baseDir, '/'], $className.'.php');
+                if (file_exists($file)) {
+                    require $file;
+                }
+            }
+        }
+    }
+}
+
+class ComposerAutoloaderInitFakeBis
+{
+    private static $loader;
+
+    public static function getLoader()
+    {
+        if (null === self::$loader) {
+            self::$loader = new ComposerLoaderFakeBis();
+            spl_autoload_register([self::$loader, 'loadClass']);
+        }
+
+        return self::$loader;
+    }
+}

src/Symfony/Bridge/PhpUnit/Tests/DeprecationErrorHandler/fake_vendor_bis/composer/installed.json

@@ -0,0 +1 @@
+{"just here": "for the detection"}

src/Symfony/Bridge/PhpUnit/Tests/DeprecationErrorHandler/fake_vendor_bis/foo/lib/SomeOtherService.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace foo\lib;
+
+class SomeOtherService
+{
+    public function deprecatedApi()
+    {
+        @trigger_error(
+            __FUNCTION__.' from foo is deprecated! You should stop relying on it!',
+            E_USER_DEPRECATED
+        );
+    }
+}

src/Symfony/Bridge/PhpUnit/Tests/DeprecationErrorHandler/multiple_autoloads.phpt

@@ -0,0 +1,45 @@
+--TEST--
+Test DeprecationErrorHandler with multiple autoload files
+--FILE--
+<?php
+
+$k = 'SYMFONY_DEPRECATIONS_HELPER';
+putenv($k.'='.$_SERVER[$k] = $_ENV[$k] = 'max[self]=0');
+putenv('ANSICON');
+putenv('ConEmuANSI');
+putenv('TERM');
+
+$vendor = __DIR__;
+while (!file_exists($vendor.'/vendor')) {
+    $vendor = dirname($vendor);
+}
+define('PHPUNIT_COMPOSER_INSTALL', $vendor.'/vendor/autoload.php');
+require PHPUNIT_COMPOSER_INSTALL;
+require_once __DIR__.'/../../bootstrap.php';
+
+eval(<<<'EOPHP'
+namespace PHPUnit\Util;
+
+class Test
+{
+    public static function getGroups()
+    {
+        return array();
+    }
+}
+EOPHP
+);
+
+require __DIR__.'/fake_vendor/autoload.php';
+require __DIR__.'/fake_vendor_bis/autoload.php';
+
+(new \App\Services\AppService())->directDeprecations();
+?>
+--EXPECTF--
+Remaining direct deprecation notices (2)
+
+  1x: deprecatedApi is deprecated! You should stop relying on it!
+    1x in AppService::directDeprecations from App\Services
+
+  1x: deprecatedApi from foo is deprecated! You should stop relying on it!
+    1x in AppService::directDeprecations from App\Services