Merge pull request #3 from cgauge/case-sensitive

Case insensitive word validation for blacklist

Author: abdala

src/Rule/Blacklist.php

@@ -46,7 +46,9 @@ public function __construct(array $words, string $encoding = 'utf8')
 
     public function __invoke(string $password) : void
     {
+        $password = mb_strtolower($password, $this->encoding);
         foreach ($this->words as $word) {
+            $word = mb_strtolower($word, $this->encoding);
             if (mb_strpos($password, $word, 0, $this->encoding) !== false) {
                 throw InBlacklist::contains($word);
             }

tests/Rule/BlacklistTest.php

@@ -36,4 +36,15 @@ public function test_it_can_validate_a_blacklist()
 
         $blacklist($password);
     }
+
+    public function test_it_is_case_insensitive()
+    {
+        self::expectException(InvalidPassword::class);
+
+        $lowerCasePassword  = 'blackliststring';
+        $password  = 'Blackliststring';
+        $blacklist = new Blacklist([$lowerCasePassword]); 
+
+        $blacklist($password);
+    }
 }