public function testIsServerError()
{
$e = new StatusCodeException('foo', 500);
$this->assertFalse($e->isInformational());
$this->assertFalse($e->isSuccessful());
$this->assertFalse($e->isRedirection());
$this->assertFalse($e->isClientError());
$this->assertTrue($e->isServerError());
}
