public function testRun()
 {
     $array = array('1' => 'qqer', 'f' => 'qs34$9&)_@+#qer', 'null' => null);
     $test = Hstore::make($array);
     $test2 = Hstore::create($test->toString());
     $this->assertEquals($test->toString(), $test2->toString());
     $this->assertTrue($test->isExists('null'));
     $this->assertFalse($test->isExists('notExist'));
 }