Agrega configuración de PHP Unit

composer.json

@@ -1,21 +1,24 @@
 {
-    "name": "david/format_converter",
-    "description": "Conversion entre formatos XML, JSON y PHP (Serializado)",
-    "autoload": {
-        "psr-4": {
-            "FormatConverter\\": "src/"
-        }
-    },
-    "authors": [
-        {
-            "name": "DavidDevGt",
-            "email": "josuedavidvl18@gmail.com"
-        }
-    ],
-    "minimum-stability": "stable",
-    "require": {
-        "symfony/yaml": "^6.4",
-        "psr/log": "^3.0",
-        "monolog/monolog": "^3.7"
+  "name": "david/format_converter",
+  "description": "Conversion entre formatos XML, JSON y PHP (Serializado)",
+  "autoload": {
+    "psr-4": {
+      "FormatConverter\\": "src/"
     }
+  },
+  "authors": [
+    {
+      "name": "DavidDevGt",
+      "email": "josuedavidvl18@gmail.com"
+    }
+  ],
+  "minimum-stability": "stable",
+  "require": {
+    "symfony/yaml": "^6.4",
+    "psr/log": "^3.0",
+    "monolog/monolog": "^3.7"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^9.5"
+  }
 }

phpunit.xml

@@ -0,0 +1,7 @@
+<phpunit bootstrap="vendor/autoload.php">
+    <testsuites>
+        <testsuite name="Project Test Suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>