Create TestMethodNameFormatter.php

Signed-off-by: Nathanael Esayeas <nathanael.esayeas@protonmail.com>

src/Formatter/TestMethodNameFormatter.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Ghostwriter\Testify\Formatter;
+
+use function sprintf;
+
+final readonly class TestMethodNameFormatter
+{
+    public function format(string $methodName): string
+    {
+        return sprintf('test%s', $methodName);
+    }
+}