func TestPostRedirects(t *testing.T) {
defer afterTest(t)
var log struct {
sync.Mutex
bytes.Buffer
}
var ts *httptest.Server
ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
log.Lock()
fmt.Fprintf(&log.Buffer, "%s %s ", r.Method, r.RequestURI)
log.Unlock()
if v := r.URL.Query().Get("code"); v != "" {
code, _ := strconv.Atoi(v)
if code/100 == 3 {
w.Header().Set("Location", ts.URL)
}
w.WriteHeader(code)
}
}))
defer ts.Close()
tests := []struct {
suffix string
want int // response code
}{
{"/", 200},
{"/?code=301", 301},
{"/?code=302", 200},
{"/?code=303", 200},
{"/?code=404", 404},
}
for _, tt := range tests {
res, err := Post(ts.URL+tt.suffix, "text/plain", strings.NewReader("Some content"))
if err != nil {
t.Fatal(err)
}
if res.StatusCode != tt.want {
t.Errorf("POST %s: status code = %d; want %d", tt.suffix, res.StatusCode, tt.want)
}
}
log.Lock()
got := log.String()
log.Unlock()
want := "POST / POST /?code=301 POST /?code=302 GET / POST /?code=303 GET / POST /?code=404 "
if got != want {
t.Errorf("Log differs.\n Got: %q\nWant: %q", got, want)
}
}
func TestRedirectCookiesJar(t *testing.T) {
defer afterTest(t)
var ts *httptest.Server
ts = httptest.NewServer(echoCookiesRedirectHandler)
defer ts.Close()
c := &Client{
Jar: new(TestJar),
}
u, _ := url.Parse(ts.URL)
c.Jar.SetCookies(u, []*Cookie{expectedCookies[0]})
resp, err := c.Get(ts.URL)
if err != nil {
t.Fatalf("Get: %v", err)
}
resp.Body.Close()
matchReturnedCookies(t, expectedCookies, resp.Cookies())
}
func TestClientRedirects(t *testing.T) {
defer afterTest(t)
var ts *httptest.Server
ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
n, _ := strconv.Atoi(r.FormValue("n"))
// Test Referer header. (7 is arbitrary position to test at)
if n == 7 {
if g, e := r.Referer(), ts.URL+"/?n=6"; e != g {
t.Errorf("on request ?n=7, expected referer of %q; got %q", e, g)
}
}
if n < 15 {
Redirect(w, r, fmt.Sprintf("/?n=%d", n+1), StatusFound)
return
}
fmt.Fprintf(w, "n=%d", n)
}))
defer ts.Close()
c := &Client{}
_, err := c.Get(ts.URL)
if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Get, expected error %q, got %q", e, g)
}
// HEAD request should also have the ability to follow redirects.
_, err = c.Head(ts.URL)
if e, g := "Head /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Head, expected error %q, got %q", e, g)
}
// Do should also follow redirects.
greq, _ := NewRequest("GET", ts.URL, nil)
_, err = c.Do(greq)
if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Do, expected error %q, got %q", e, g)
}
var checkErr error
var lastVia []*Request
c = &Client{CheckRedirect: func(_ *Request, via []*Request) error {
lastVia = via
return checkErr
}}
res, err := c.Get(ts.URL)
if err != nil {
t.Fatalf("Get error: %v", err)
}
res.Body.Close()
finalUrl := res.Request.URL.String()
if e, g := "<nil>", fmt.Sprintf("%v", err); e != g {
t.Errorf("with custom client, expected error %q, got %q", e, g)
}
if !strings.HasSuffix(finalUrl, "/?n=15") {
t.Errorf("expected final url to end in /?n=15; got url %q", finalUrl)
}
if e, g := 15, len(lastVia); e != g {
t.Errorf("expected lastVia to have contained %d elements; got %d", e, g)
}
checkErr = errors.New("no redirects allowed")
res, err = c.Get(ts.URL)
if urlError, ok := err.(*url.Error); !ok || urlError.Err != checkErr {
t.Errorf("with redirects forbidden, expected a *url.Error with our 'no redirects allowed' error inside; got %#v (%q)", err, err)
}
if res == nil {
t.Fatalf("Expected a non-nil Response on CheckRedirect failure (http://golang.org/issue/3795)")
}
res.Body.Close()
if res.Header.Get("Location") == "" {
t.Errorf("no Location header in Response")
}
}