/**
  * testSortLexicographically
  *
  * @return void
  * @author Rob Mcvey
  **/
 public function testSortLexicographically()
 {
     $this->AmazonS3->amazonHeaders = array('X-Amz-Meta-ReviewedBy' => '*****@*****.**', 'X-Amz-CUSTOM' => 'chicken-soup');
     $this->AmazonS3->sortLexicographically();
     $result = $this->AmazonS3->amazonHeaders;
     $expected = array('X-Amz-CUSTOM' => 'chicken-soup', 'X-Amz-Meta-ReviewedBy' => '*****@*****.**');
     $this->assertSame($expected, $result);
     //
     $this->AmazonS3->amazonHeaders = array('X-Amz-Meta-ReviewedBy' => '*****@*****.**', 'x-amz-acl' => 'public-read');
     $this->AmazonS3->sortLexicographically();
     $result = $this->AmazonS3->amazonHeaders;
     $expected = array('x-amz-acl' => 'public-read', 'X-Amz-Meta-ReviewedBy' => '*****@*****.**');
     $this->assertSame($expected, $result);
 }