Test case for retries

write_retry.vtc

varnishtest "PUT/POST/DELETE retry"

server s1 {
	rxreq
	delay 0.5
	txresp
} -start

varnish v1 -vcl+backend {
	sub vcl_backend_fetch {
		set bereq.first_byte_timeout = 0.1s;
	}
	sub vcl_backend_error {
		set beresp.http.X-retries = bereq.retries;
	}
} -start

client c1 {
	txreq -req "PUT" -url "/"
	rxresp
	expect resp.status == 503
	expect resp.http.X-retries == 0

	txreq -req "POST" -url "/"
	rxresp
	expect resp.status == 503
	expect resp.http.X-retries == 0

	txreq -req "DELETE" -url "/"
	rxresp
	expect resp.status == 503
	expect resp.http.X-retries == 0
} -run