Ensure compatibility with PSR-4 autoloading standard

codeception.yml

@@ -3,7 +3,7 @@ paths:
     tests: tests
     output: tests/_output
     data: tests/_data
-    support: tests/_support
+    support: tests
     envs: tests/_envs
 actor_suffix: Tester
 extensions:

composer.json

@@ -9,15 +9,21 @@
             "email": "[email protected]"
         }
     ],
+    "config": {
+        "optimize-autoloader": true,
+        "sort-packages": true
+    },
     "require": {
-        "phpunit/phpunit": "^6.0 || ^7.0 || ^8.0 || ^9.0",
-        "vimeo/psalm": "^3.6.2 || dev-master",
+        "php": "^7.1.3",
+        "ext-simplexml": "*",
         "composer/semver": "^1.4",
-        "ocramius/package-versions": "^1.3"
+        "ocramius/package-versions": "^1.3",
+        "phpunit/phpunit": "^6.0 || ^7.0 || ^8.0 || ^9.0",
+        "vimeo/psalm": "^3.6.2 || dev-master"
     },
     "require-dev": {
-        "squizlabs/php_codesniffer": "^3.3.1",
         "codeception/base": "^2.5",
+        "squizlabs/php_codesniffer": "^3.3.1",
         "weirdan/codeception-psalm-module": "^0.4.0"
     },
     "extra": {
@@ -27,17 +33,15 @@
     },
     "autoload": {
         "psr-4": {
-            "Psalm\\PhpUnitPlugin\\": ["."],
-            "Psalm\\PhpUnitPlugin\\Hooks\\": ["hooks"],
-            "Psalm\\PhpUnitPlugin\\Exception\\" : ["Exception"]
+            "Psalm\\PhpUnitPlugin\\": "src"
         }
     },
     "autoload-dev": {
         "psr-4": {
-            "Psalm\\PhpUnitPlugin\\Tests\\": ["tests/_support"]
+            "Psalm\\PhpUnitPlugin\\Tests\\": "tests"
         }
     },
-    "scripts" : {
+    "scripts": {
         "check": [
             "@cs-check",
             "@analyze",

phpcs.xml.dist

@@ -5,11 +5,9 @@
     <arg name="colors"/>
 
     <!-- Paths to check -->
-    <file>Plugin.php</file>
-    <file>tests/_support/Helper</file>
-    <file>tests/_support/AcceptanceTester.php</file>
-    <file>hooks</file>
-    <file>Exception</file>
+    <file>src</file>
+    <file>tests/Helper</file>
+    <file>tests/AcceptanceTester.php</file>
 
 
     <!-- inherit rules from: -->

psalm.xml.dist

@@ -6,12 +6,7 @@
     xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
 >
     <projectFiles>
-        <directory name="." />
-        <ignoreFiles>
-            <directory name="vendor" />
-            <directory name="stubs" />
-            <directory name="tests/_support" />
-        </ignoreFiles>
+        <directory name="src" />
     </projectFiles>
 
     <issueHandlers>

Plugin.php → src/Plugin.php

@@ -15,14 +15,14 @@ class Plugin implements PluginEntryPointInterface
     /** @return void */
     public function __invoke(RegistrationInterface $psalm, SimpleXMLElement $config = null)
     {
-        $psalm->addStubFile(__DIR__ . '/stubs/Assert.php');
+        $psalm->addStubFile(__DIR__ . '/../stubs/Assert.php');
         if ($this->packageVersionIs('phpunit/phpunit', '>=', '7.5')) {
-            $psalm->addStubFile(__DIR__ . '/stubs/Assert_75.php');
+            $psalm->addStubFile(__DIR__ . '/../stubs/Assert_75.php');
         }
-        $psalm->addStubFile(__DIR__ . '/stubs/TestCase.php');
-        $psalm->addStubFile(__DIR__ . '/stubs/MockBuilder.php');
-        $psalm->addStubFile(__DIR__ . '/stubs/InvocationMocker.php');
-        $psalm->addStubFile(__DIR__ . '/stubs/Prophecy.php');
+        $psalm->addStubFile(__DIR__ . '/../stubs/TestCase.php');
+        $psalm->addStubFile(__DIR__ . '/../stubs/MockBuilder.php');
+        $psalm->addStubFile(__DIR__ . '/../stubs/InvocationMocker.php');
+        $psalm->addStubFile(__DIR__ . '/../stubs/Prophecy.php');
 
         class_exists(Hooks\TestCaseHandler::class, true);
         $psalm->registerHooksFromClass(Hooks\TestCaseHandler::class);