tests: dedicated config file for PHP CS Fixer

.php-cs-fixer.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of Cecil.
+ *
+ * Copyright (c) Arnaud Ligny <arnaud@ligny.fr>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+$finder = (new PhpCsFixer\Finder())
+    ->ignoreDotFiles(false)
+    ->ignoreVCSIgnored(true)
+    ->exclude(['tests/fixtures'])
+    ->in(__DIR__)
+;
+
+return (new PhpCsFixer\Config())
+    ->setParallelConfig(PhpCsFixer\Runner\Parallel\ParallelConfigFactory::detect())
+    ->setRules([
+        '@PSR12' => true,
+        'native_function_invocation' => true,
+        'nullable_type_declaration_for_default_null_value' => true,
+        'header_comment' => ['header' => <<<'EOF'
+            This file is part of Cecil.
+
+            Copyright (c) Arnaud Ligny <arnaud@ligny.fr>
+
+            For the full copyright and license information, please view the LICENSE
+            file that was distributed with this source code.
+            EOF],
+    ])
+    ->setFinder($finder)
+;

composer.json

@@ -111,7 +111,7 @@
     "code:md": "phpmd src text codesize, naming, unusedcode",
     "code:md:gh": "phpmd src github codesize, naming, unusedcode",
     "code:style": "phpcs ./src/ --standard=PSR12 -n",
-    "code:fix": "php-cs-fixer fix ./src/ --rules=@PSR12,native_function_invocation,nullable_type_declaration_for_default_null_value --allow-risky=yes --show-progress=none",
+    "code:fix": "php-cs-fixer fix --allow-risky=yes --show-progress=none",
     "test": "@test:integration",
     "test:integration": "phpunit -c ./ --testsuite=IntegrationTests",
     "test:coverage": "phpunit -c ./ --testsuite=IntegrationTests --coverage-text --coverage-clover=build/logs/clover.xml",