test "Stale objects are expired, but served from cache for a grace period"

shell "/Users/pivotal/workspace/freshyfresh/target/memset version:test 2"

server s {
	rxreq
	expect req.url == "/"
	txresp -status 200 -hdr "ETag: 1" -hdr "X-Generation-Key: version:test"
} -start

varnish v -vcl+backend {
  include "/usr/local/etc/varnish/default.vcl";
} -start

client c1 {
	txreq -req GET -url "/"
	rxresp
	expect resp.http.ETag == "1"
} -run

server s {
  rxreq
	sema r1 sync 3
  expect req.http.X-First-Client == "c2"
	sema r2 sync 2
	txresp -status 200 -hdr "ETag: 2" -hdr "X-Generation-Key: version:test" -hdr "Connection: close"
} -start

client c2 {
	txreq -req GET -url "/" -hdr "X-First-Client: c2"
	sema r1 sync 3
  rxresp
  expect resp.http.ETag == "2"
} -start

client c3 {
  sema r1 sync 3
  txreq -req GET -url "/" -hdr "X-First-Client: c3"
  rxresp
  sema r2 sync 2
  expect resp.http.ETag == "1"
} -start