Test backends timeouts

Test backends timeouts

varnishtest " test backends timeouts"

server s1 {
        # connect to the backend before connect_timeout
        rxreq
        delay 1
        # send first byte before first_byte_timeout
        send "HTTP/1.1 200 OK\r\n"
        delay 1
        # send other bytes before between_bytes_timeout
        send "Transfer-encoding: chunked\r\n"
        send "\r\n"
        send "00000004\r\n1234\r\n"
        delay 1
        send "00000000\r\n"
        # send full response before last_byte_timeout
        delay 1
        send "\r\n"
} -start

varnish v1 -vcl {
        backend b1 {
                .host = "${s1_addr}";
                .port = "${s1_port}";
                .connect_timeout = 1s;
                .first_byte_timeout = 1.5s;
                .between_bytes_timeout = 1.5s;
        }

        sub vcl_backend_fetch {
                set bereq.last_byte_timeout = 5s;
        }
} -start

client c1 {
       txreq
       rxresp
       expect resp.status == 200
} -run

# in varnishlog we expect a response time between 4 and 5 seconds
logexpect l1 -v v1 -g request {
        expect * =      Timestamp       {Resp: \S+ [4-5\.\d+ [4-5]\.\d+}
}