public function testDefaultCharsets()
{
$this->assertNull($this->object->getCharset(Communicator::CHARSET_REMOTE));
$this->assertNull($this->object->getCharset(Communicator::CHARSET_LOCAL));
$this->assertEquals(array(Communicator::CHARSET_REMOTE => null, Communicator::CHARSET_LOCAL => null), $this->object->getCharset(Communicator::CHARSET_ALL));
$this->assertEquals(array(Communicator::CHARSET_REMOTE => null, Communicator::CHARSET_LOCAL => null), Communicator::getDefaultCharset(Communicator::CHARSET_ALL));
$this->assertNull(Communicator::getDefaultCharset(Communicator::CHARSET_REMOTE));
$this->assertNull(Communicator::getDefaultCharset(Communicator::CHARSET_LOCAL));
}