convert values to uppercase before testing

to string
Convert value to uppercase before testing

src/Rules/Rif.php

@@ -3,6 +3,7 @@
 namespace Wilsenhc\RifValidation\Rules;
 
 use Illuminate\Contracts\Validation\Rule;
+use Illuminate\Support\Str;
 
 class Rif implements Rule
 {
@@ -40,6 +41,8 @@ public function passes($attribute, $value): bool
     {
         $this->attribute = $attribute;
 
+        $value = Str::upper($value);
+
         // Verificar si el RIF tiene el formato valido
         if (!preg_match('/^[VEPJGC]-?[\d]{8}-?[\d]$/i', $value))
         {

tests/Rules/RifTest.php

@@ -73,4 +73,23 @@ public function it_will_return_false_if_format_is_invalid()
 
         $this->assertFalse($this->rule->passes('rif', $rif));
     }
+
+    /** @test */
+    public function it_will_convert_values_to_uppercase_before_testing()
+    {
+        // Valid RIF of "Universidad de Carabobo"
+        $rif = 'g-20000041-4';
+
+        $this->assertTrue($this->rule->passes('rif', $rif));
+
+        // Valid RIF of "Banesco Banco Universal"
+        $rif = 'j-07013380-5';
+
+        $this->assertTrue($this->rule->passes('rif', $rif));
+
+        // Valid RIF of "Nicolas Maduro Moros"
+        $rif = 'v-05892464-0';
+
+        $this->assertTrue($this->rule->passes('rif', $rif));
+    }
 }