$expected = <<<EOF
<tr>
<th>W4</th>
<td>
<table>
<tr>
<th><label for="w4_w3">W3</label></th>
<td><input type="text" name="w4[w3]" id="w4_w3" /></td>
</tr>
</table>
<input type="hidden" name="w1" id="w1" />
</td>
</tr>
EOF;
$t->is(str_replace("\n", '', preg_replace('/^ +/m', '', $w->render(null))), str_replace("\n", '', preg_replace('/^ +/m', '', fix_linebreaks($expected))), '->render() is able to render widget schema that only contains hidden fields when the last field is a form');
// __clone()
$t->diag('__clone()');
$w = new sfWidgetFormSchema(array('w1' => $w1, 'w2' => $w2));
$w1->setParent($w);
$w2->setParent($w);
$format1 = new sfWidgetFormSchemaFormatterList($w);
$format1->setTranslationCatalogue('english');
$w->addFormFormatter('testFormatter', $format1);
$w1 = clone $w;
$f1 = $w1->getFields();
$f = $w->getFields();
$t->is(array_keys($f1), array_keys($f), '__clone() clones embedded widgets');
foreach ($f1 as $name => $widget) {
$t->ok($widget !== $f[$name], '__clone() clones embedded widgets');
$t->ok($widget->getParent() === $w1, 'The parents hafe been changed');
