Add methods to test for uppercase and lowercase commands

At this moment predis is only capable of lowercase commands, the test
adds the requirement to provide both lowercase, uppercase (and even
mixed case) commands.

test/RedisCommandsTest.php

@@ -2075,5 +2075,19 @@ class RedisCommandTestSuite extends PHPUnit_Framework_TestCase {
     function testLastSave() {
         $this->assertGreaterThan(0, $this->redis->lastsave());
     }
+
+    function testUppercaseCommands() {
+        $uppercase = $this->redis->INFO();
+        $lowercase = $this->redis->info();
+        $this->assertEquals($uppercase, $lowercase);
+
+        $uppercase = $this->getProfile()->supportsCommand('INFO');
+        $lowercase = $this->getProfile()->supportsCommand('info');
+        $this->assertEquals($uppercase, $lowercase);
+
+        $uppercase = $this->getProfile()->createCommand('INFO');
+        $lowercase = $this->getProfile()->createCommand('info');
+        $this->assertEquals($uppercase, $lowercase);
+    }
 }
 ?>