public function testGetSetHeaders()
{
$message = new Message();
$message->setHeaders(array('foo' => 'bar', 'bar' => array('foo', 'bar')));
$headers = $message->getHeaders();
$this->assertTrue(is_array($headers['foo']));
$this->assertEquals(array('bar'), $headers['foo']);
$this->assertTrue(is_array($headers['bar']));
$this->assertEquals(array('foo', 'bar'), $headers['bar']);
foreach ($headers as $name => $value) {
$this->assertTrue(is_array($value));
}
// set headers must overwrite all existing headers
$message->setHeaders(array('foo' => 'bar'));
$this->assertTrue($message->hasHeader('foo'));
$this->assertFalse($message->hasHeader('bar'));
}
