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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Tests for transport.go
package http_test
import (
"fmt"
. "http"
"http/httptest"
"io/ioutil"
"os"
"testing"
"time"
)
// TODO: test 5 pipelined requests with responses: 1) OK, 2) OK, Connection: Close
// and then verify that the final 2 responses get errors back.
// hostPortHandler writes back the client's "host:port".
var hostPortHandler = HandlerFunc(func(w ResponseWriter, r *Request) {
if r.FormValue("close") == "true" {
w.Header().Set("Connection", "close")
}
fmt.Fprintf(w, "%s", r.RemoteAddr)
})
// Two subsequent requests and verify their response is the same.
// The response from the server is our own IP:port
func TestTransportKeepAlives(t *testing.T) {
ts := httptest.NewServer(hostPortHandler)
defer ts.Close()
for _, disableKeepAlive := range []bool{false, true} {
tr := &Transport{DisableKeepAlives: disableKeepAlive}
c := &Client{Transport: tr}
fetch := func(n int) string {
res, _, err := c.Get(ts.URL)
if err != nil {
t.Fatalf("error in disableKeepAlive=%v, req #%d, GET: %v", disableKeepAlive, n, err)
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatalf("error in disableKeepAlive=%v, req #%d, ReadAll: %v", disableKeepAlive, n, err)
}
return string(body)
}
body1 := fetch(1)
body2 := fetch(2)
bodiesDiffer := body1 != body2
if bodiesDiffer != disableKeepAlive {
t.Errorf("error in disableKeepAlive=%v. unexpected bodiesDiffer=%v; body1=%q; body2=%q",
disableKeepAlive, bodiesDiffer, body1, body2)
}
}
}
func TestTransportConnectionCloseOnResponse(t *testing.T) {
ts := httptest.NewServer(hostPortHandler)
defer ts.Close()
for _, connectionClose := range []bool{false, true} {
tr := &Transport{}
c := &Client{Transport: tr}
fetch := func(n int) string {
req := new(Request)
var err os.Error
req.URL, err = ParseURL(ts.URL + fmt.Sprintf("?close=%v", connectionClose))
if err != nil {
t.Fatalf("URL parse error: %v", err)
}
req.Method = "GET"
req.Proto = "HTTP/1.1"
req.ProtoMajor = 1
req.ProtoMinor = 1
res, err := c.Do(req)
if err != nil {
t.Fatalf("error in connectionClose=%v, req #%d, Do: %v", connectionClose, n, err)
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatalf("error in connectionClose=%v, req #%d, ReadAll: %v", connectionClose, n, err)
}
return string(body)
}
body1 := fetch(1)
body2 := fetch(2)
bodiesDiffer := body1 != body2
if bodiesDiffer != connectionClose {
t.Errorf("error in connectionClose=%v. unexpected bodiesDiffer=%v; body1=%q; body2=%q",
connectionClose, bodiesDiffer, body1, body2)
}
}
}
func TestTransportConnectionCloseOnRequest(t *testing.T) {
ts := httptest.NewServer(hostPortHandler)
defer ts.Close()
for _, connectionClose := range []bool{false, true} {
tr := &Transport{}
c := &Client{Transport: tr}
fetch := func(n int) string {
req := new(Request)
var err os.Error
req.URL, err = ParseURL(ts.URL)
if err != nil {
t.Fatalf("URL parse error: %v", err)
}
req.Method = "GET"
req.Proto = "HTTP/1.1"
req.ProtoMajor = 1
req.ProtoMinor = 1
req.Close = connectionClose
res, err := c.Do(req)
if err != nil {
t.Fatalf("error in connectionClose=%v, req #%d, Do: %v", connectionClose, n, err)
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatalf("error in connectionClose=%v, req #%d, ReadAll: %v", connectionClose, n, err)
}
return string(body)
}
body1 := fetch(1)
body2 := fetch(2)
bodiesDiffer := body1 != body2
if bodiesDiffer != connectionClose {
t.Errorf("error in connectionClose=%v. unexpected bodiesDiffer=%v; body1=%q; body2=%q",
connectionClose, bodiesDiffer, body1, body2)
}
}
}
func TestTransportIdleCacheKeys(t *testing.T) {
ts := httptest.NewServer(hostPortHandler)
defer ts.Close()
tr := &Transport{DisableKeepAlives: false}
c := &Client{Transport: tr}
if e, g := 0, len(tr.IdleConnKeysForTesting()); e != g {
t.Errorf("After CloseIdleConnections expected %d idle conn cache keys; got %d", e, g)
}
if _, _, err := c.Get(ts.URL); err != nil {
t.Error(err)
}
keys := tr.IdleConnKeysForTesting()
if e, g := 1, len(keys); e != g {
t.Fatalf("After Get expected %d idle conn cache keys; got %d", e, g)
}
if e := "|http|" + ts.Listener.Addr().String(); keys[0] != e {
t.Logf("Expected idle cache key %q; got %q", e, keys[0])
}
tr.CloseIdleConnections()
if e, g := 0, len(tr.IdleConnKeysForTesting()); e != g {
t.Errorf("After CloseIdleConnections expected %d idle conn cache keys; got %d", e, g)
}
}
func TestTransportServerClosingUnexpectedly(t *testing.T) {
ts := httptest.NewServer(hostPortHandler)
defer ts.Close()
tr := &Transport{}
c := &Client{Transport: tr}
fetch := func(n int) string {
res, _, err := c.Get(ts.URL)
if err != nil {
t.Fatalf("error in req #%d, GET: %v", n, err)
}
body, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatalf("error in req #%d, ReadAll: %v", n, err)
}
res.Body.Close()
return string(body)
}
body1 := fetch(1)
body2 := fetch(2)
ts.CloseClientConnections() // surprise!
time.Sleep(25e6) // idle for a bit (test is inherently racey, but expectedly)
body3 := fetch(3)
if body1 != body2 {
t.Errorf("expected body1 and body2 to be equal")
}
if body2 == body3 {
t.Errorf("expected body2 and body3 to be different")
}
}
func TestTransportNilURL(t *testing.T) {
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
fmt.Fprintf(w, "Hi")
}))
defer ts.Close()
req := new(Request)
req.URL = nil // what we're actually testing
req.Method = "GET"
req.RawURL = ts.URL
req.Proto = "HTTP/1.1"
req.ProtoMajor = 1
req.ProtoMinor = 1
tr := &Transport{}
res, err := tr.RoundTrip(req)
if err != nil {
t.Fatalf("unexpected RoundTrip error: %v", err)
}
body, err := ioutil.ReadAll(res.Body)
if g, e := string(body), "Hi"; g != e {
t.Fatalf("Expected response body of %q; got %q", e, g)
}
}
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