Fix polyfills

Author: Seldaek

composer.json

@@ -86,6 +86,9 @@
     "autoload": {
         "psr-4": { "Composer\\Installers\\": "src/Composer/Installers" }
     },
+    "autoload-dev": {
+        "psr-4": { "Composer\\Installers\\Test\\": "tests/Composer/Installers/Test" }
+    },
     "extra": {
         "class": "Composer\\Installers\\Plugin",
         "branch-alias": {

phpunit.xml.dist

@@ -9,7 +9,7 @@
          processIsolation="false"
          stopOnFailure="false"
          syntaxCheck="false"
-         bootstrap="tests/bootstrap.php"
+         bootstrap="vendor/autoload.php"
 >
     <php>
         <env name="SYMFONY_DEPRECATIONS_HELPER" value="weak"/>
@@ -26,4 +26,4 @@
             <directory>src/Composer/Installers</directory>
         </whitelist>
     </filter>
-</phpunit>
+</phpunit>