QtTest comparing two urls gives wrong results

import QtQuick 2.0
import QtTest 1.0
Item {
    resources: TestCase {
        
        name: "URL" 
        property url path1: "path1"
        property url path2: "path2"

        function test_url_compare() { 
            // passes even though should fail! 
            compare(path1, path2)
        } 
        function test_url_compare_string() {
            // fails as it should
            compare(path1.toString(), path2.toString())
        }
        function test_url_verify() { 
            // fails as it should 
            verify(path1 == path2)
        }
    }
}