Merge pull request #17 from abcdmitry/master

Decoding uppercase domains as well

src/Punycode.php

@@ -73,6 +73,7 @@ public function __construct($encoding = 'UTF-8')
      */
     public function encode($input)
     {
+        $input = mb_strtolower($input, $this->encoding);
         $parts = explode('.', $input);
         foreach ($parts as &$part) {
             $part = $this->encodePart($part);
@@ -157,6 +158,7 @@ protected function encodePart($input)
      */
     public function decode($input)
     {
+        $input = strtolower($input);
         $parts = explode('.', $input);
         foreach ($parts as &$part) {
             if (strpos($part, static::PREFIX) !== 0) {

tests/PunycodeTest.php

@@ -32,6 +32,34 @@ public function testDecode($decoded, $encoded)
         $this->assertEquals($decoded, $result);
     }
 
+    /**
+     * Test encoding Punycode in uppercase
+     *
+     * @param string $decoded Decoded domain
+     * @param string $encoded Encoded domain
+     * @dataProvider domainNamesProvider
+     */
+    public function testEncodeUppercase($decoded, $encoded)
+    {
+        $Punycode = new Punycode();
+        $result = $Punycode->encode(mb_strtoupper($decoded, 'UTF-8'));
+        $this->assertEquals($encoded, $result);
+    }
+
+    /**
+     * Test decoding Punycode in uppercase
+     *
+     * @param string $decoded Decoded domain
+     * @param string $encoded Encoded domain
+     * @dataProvider domainNamesProvider
+     */
+    public function testDecodeUppercase($decoded, $encoded)
+    {
+        $Punycode = new Punycode();
+        $result = $Punycode->decode(strtoupper($encoded));
+        $this->assertEquals($decoded, $result);
+    }
+
     /**
      * Provide domain names containing the decoded and encoded names
      *