[Simpletest-support] Segmentation fault when expecting an argument that refers to the invoked mock

[Mark S. <mar...@gm...>]

Hi,

I ran into a problem when writing up some test cases.  I'm new to
SimpleTest, so I'm not sure if this is me abusing SimpleTest or a bug
and wanted to run it by the list for some feedback.

What I encountered was that if I create a mock object, and call
expectOnce with a data structure that refers back to that mock object,
I get a segmentation fault.  The proof of concept is below.

==== >8 =================================
<?php

require_once 'simpletest/autorun.php';

class PocClass
{
    function go($in)
    {
    }
}

class TestPocClass extends UnitTestCase
{
    function testPoc()
    {
        Mock::generate('PocClass');
        $poc = new MockPocClass;
        $in = new stdClass;
        $in->poc = $poc;
        $poc->expectOnce('go', array($in));
        $poc->go($in);
    }
}

?>

$ php poc.php
poc.php
Segmentation fault
==== >8 =================================

Is there a way to accomplish what I'm trying to do here?  My actual
test case is more complex than this but the idea's the same.  I have a
parser object, that parses special markup using handler objects.
Those handler objects are added to the parser, and when the parser
invokes them to handle some markup, it passes in contextual
information including a reference to itself.  This is necessary as a
single handler may be added to multiple parsers, so the handler needs
a reference to the parser that invoked it (and that parser will also
contain that handler).

My test case creates a mock handler, adds it to the parser, then asks
the parser to parse a string.  I'm using expectOnce to make sure that
the parser calls the handler with the expected context.

Thanks,
Mark