public function testBase64EncodeAndDecode()
 {
     $s = new Stringizer("Stringizer");
     $this->assertEquals("U3RyaW5naXplcg==", $s->base64Encode());
     $this->assertEquals("Stringizer", $s->base64Decode());
     $s = new Stringizer("ȘŦŗÍñĝìzĕŕ");
     $this->assertEquals("yJjFpsWXw43DscSdw6x6xJXFlQ==", $s->base64Encode());
     $this->assertEquals("ȘŦŗÍñĝìzĕŕ", $s->base64Decode());
     $s = new Stringizer("こんにちは");
     $this->assertEquals("44GT44KT44Gr44Gh44Gv", $s->base64Encode());
     $this->assertEquals("こんにちは", $s->base64Decode());
 }