TestCase's expectFail() and expectFailContinue() functions don't work as expected

import QtQuick 2.2
import QtTest 1.0

TestCase {
    id: testCase
    width: 200
    height: 200
    visible: true
    when: windowShown

    function test_expectFail() {
        // XFAIL, as expected.
        expectFailContinue("", "Should fail")
        compare(1, 2)

        // Should be XFAIL, but is regular FAIL!
        expectFailContinue("", "Should fail")
        tryVerify(123)

        // Should be XFAIL, but is regular FAIL!
        expectFailContinue("", "Should fail")
        fail("oops")
    }
}