$t->is($ph->has('myfoo'), false, '->remove() removes the key from parameters');
$t->is($ph->remove('nonexistant', 'foobar'), 'foobar', '->remove() takes a default value as its second argument');
$t->is($ph->getAll(), null, '->remove() removes the key from parameters');
// ->set()
$t->diag('->set()');
$foo = 'bar';
$ph = new sfParameterHolder();
$ph->set('foo', $foo);
$t->is($ph->get('foo'), $foo, '->set() sets the value for a key');
$foo = 'foo';
$t->is($ph->get('foo'), 'bar', '->set() sets the value for a key, not a reference');
// ->setByRef()
$t->diag('->setByRef()');
$foo = 'bar';
$ph = new sfParameterHolder();
$ph->setByRef('foo', $foo);
$t->is($ph->get('foo'), $foo, '->setByRef() sets the value for a key');
$foo = 'foo';
$t->is($ph->get('foo'), $foo, '->setByRef() sets the value for a key as a reference');
// ->add()
$t->diag('->add()');
$foo = 'bar';
$parameters = array('foo' => $foo, 'bar' => 'bar');
$myparameters = array('myfoo' => 'bar', 'mybar' => 'bar');
$ph = new sfParameterHolder();
$ph->add($parameters);
$t->is($ph->getAll(), $parameters, '->add() adds an array of parameters');
$foo = 'mybar';
$t->is($ph->getAll(), $parameters, '->add() adds an array of parameters, not a reference');
// ->addByRef()
$t->diag('->addByRef()');
$t->is(null, $ph->getAll(), '->removeNamespace() removes all the keys from parameters');
// ->set()
$t->diag('->set()');
$foo = 'bar';
$ph = new sfParameterHolder();
$ph->set('foo', $foo);
$t->is($ph->get('foo'), $foo, '->set() sets the value for a key');
$foo = 'foo';
$t->is($ph->get('foo'), 'bar', '->set() sets the value for a key, not a reference');
$ph->set('myfoo', 'bar', 'symfony/mynamespace');
$t->is($ph->get('myfoo', null, 'symfony/mynamespace'), 'bar', '->set() takes a namespace as its third parameter');
// ->setByRef()
$t->diag('->setByRef()');
$foo = 'bar';
$ph = new sfParameterHolder();
$ph->setByRef('foo', $foo);
$t->is($ph->get('foo'), $foo, '->setByRef() sets the value for a key');
$foo = 'foo';
$t->is($ph->get('foo'), $foo, '->setByRef() sets the value for a key as a reference');
$myfoo = 'bar';
$ph->setByRef('myfoo', $myfoo, 'symfony/mynamespace');
$t->is($ph->get('myfoo', null, 'symfony/mynamespace'), $myfoo, '->setByRef() takes a namespace as its third parameter');
// ->add()
$t->diag('->add()');
$foo = 'bar';
$parameters = array('foo' => $foo, 'bar' => 'bar');
$myparameters = array('myfoo' => 'bar', 'mybar' => 'bar');
$ph = new sfParameterHolder();
$ph->add($parameters);
$ph->add($myparameters, 'symfony/mynamespace');
$t->is($ph->getAll(), $parameters, '->add() adds an array of parameters');
