Use psr-4 for autoloading

Author: jakzal

.gitignore

@@ -1,3 +1,4 @@
+.phpunit.result.cache
 phpunit.xml
 vendor
 composer.lock

composer.json

@@ -24,6 +24,6 @@
         "phpunit/phpunit": "^8.4"
     },
     "autoload": {
-        "psr-0": { "PSS\\SymfonyMockerContainer": "src/" }
+        "psr-4": { "PSS\\SymfonyMockerContainer\\": "src/" }
     }
 }

phpunit.xml.dist

@@ -4,15 +4,15 @@
 
     <testsuites>
         <testsuite name="SymfonyMockerContainer test suite">
-            <directory suffix="Test.php">./src/PSS/SymfonyMockerContainer/Tests</directory>
+            <directory suffix="Test.php">./tests</directory>
         </testsuite>
     </testsuites>
 
     <filter>
         <whitelist>
             <directory>./src</directory>
             <exclude>
-                <directory>./src/PSS/SymfonyMockerContainer/Tests</directory>
+                <directory>./tests</directory>
                 <directory>./vendor</directory>
             </exclude>
         </whitelist>