/**
  * Test getPreviousPage() method
  */
 public function testGetPreviousPage()
 {
     $this->Zym_Paginate_Array->setCurrentPageNumber(1);
     try {
         $this->Zym_Paginate_Array->getPreviousPage();
     } catch (Zym_Paginate_Exception_NoPreviousPage $e) {
         $this->assertType('Zym_Paginate_Exception_NoPreviousPage', $e);
         $this->assertEquals('No previous page', $e->getMessage());
     }
     $this->Zym_Paginate_Array->setCurrentPageNumber(2);
     $page = array('vitem1', 'vitem2');
     $this->assertEquals($page, $this->Zym_Paginate_Array->getPreviousPage());
     $this->Zym_Paginate_Array->setCurrentPageNumber(1);
 }