Update MimeTest.php

tests/library/Class/File/MimeTest.php

@@ -33,7 +33,7 @@ class MimeTest extends PHPUnit_Framework_TestCase {
 
 
   /** @test */
-  public function typeOfJPGShonuldBeImageJpg() {
+  public function typeOfJPGShouldBeImageJpg() {
     $this->assertEquals('image/jpeg', Class_File_Mime::getType('JPG'));
   }