$ph->set('myfoo', 'bar', 'symfony/mynamespace');
$ph->remove('foo');
$t->is($ph->has('foo'), false, '->remove() removes the key from parameters');
$ph->remove('myfoo');
$t->is($ph->has('myfoo'), false, '->remove() removes the key from parameters');
$t->is($ph->has('myfoo', 'symfony/mynamespace'), true, '->remove() removes the key from parameters for a given namespace');
$ph->remove('myfoo', 'symfony/mynamespace');
$t->is($ph->has('myfoo', 'symfony/mynamespace'), false, '->remove() takes a namespace as its second argument');
$t->is($ph->getAll(), null, '->remove() removes the key from parameters');
// ->removeNamespace()
$t->diag('->removeNamespace()');
$ph = new sfParameterHolder();
$ph->set('foo', 'bar');
$ph->set('myfoo', 'bar');
$ph->set('myfoo', 'bar', 'symfony/mynamespace');
$ph->removeNamespace($ph->getDefaultNamespace());
$t->is($ph->has('foo'), false, '->removeNamespace() removes all keys and values from a namespace');
$t->is($ph->has('myfoo'), false, '->removeNamespace() removes all keys and values from a namespace');
$t->is($ph->has('myfoo', 'symfony/mynamespace'), true, '->removeNamespace() does not remove keys in other namepaces');
$ph->set('foo', 'bar');
$ph->set('myfoo', 'bar');
$ph->set('myfoo', 'bar', 'symfony/mynamespace');
$ph->removeNamespace();
$t->is($ph->has('foo'), false, '->removeNamespace() removes all keys and values from the default namespace by default');
$t->is($ph->has('myfoo'), false, '->removeNamespace() removes all keys and values from the default namespace by default');
$t->is($ph->has('myfoo', 'symfony/mynamespace'), true, '->removeNamespace() does not remove keys in other namepaces');
$ph->removeNamespace('symfony/mynamespace');
$t->is($ph->has('myfoo', 'symfony/mynamespace'), false, '->removeNamespace() takes a namespace as its first parameter');
$t->is(null, $ph->getAll(), '->removeNamespace() removes all the keys from parameters');
// ->set()
$t->diag('->set()');
