/**
* @covers ConfigFactory::register
*/
public function testSalvage()
{
$oldFactory = new ConfigFactory();
$oldFactory->register('foo', 'GlobalVarConfig::newInstance');
$oldFactory->register('bar', 'GlobalVarConfig::newInstance');
$oldFactory->register('quux', 'GlobalVarConfig::newInstance');
// instantiate two of the three defined configurations
$foo = $oldFactory->makeConfig('foo');
$bar = $oldFactory->makeConfig('bar');
$quux = $oldFactory->makeConfig('quux');
// define new config instance
$newFactory = new ConfigFactory();
$newFactory->register('foo', 'GlobalVarConfig::newInstance');
$newFactory->register('bar', function () {
return new HashConfig();
});
// "foo" and "quux" are defined in the old and the new factory.
// The old factory has instances for "foo" and "bar", but not "quux".
$newFactory->salvage($oldFactory);
$newFoo = $newFactory->makeConfig('foo');
$this->assertSame($foo, $newFoo, 'existing instance should be salvaged');
$newBar = $newFactory->makeConfig('bar');
$this->assertNotSame($bar, $newBar, 'don\'t salvage if callbacks differ');
// the new factory doesn't have quux defined, so the quux instance should not be salvaged
$this->setExpectedException('ConfigException');
$newFactory->makeConfig('quux');
}
