forked from ahmetb/go-httpbin
/
handlers_test.go
787 lines (656 loc) · 20 KB
/
handlers_test.go
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package httpbin_test
import (
"bytes"
"compress/flate"
"compress/gzip"
"encoding/json"
"encoding/xml"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/http/cookiejar"
"net/http/httptest"
"net/url"
"runtime"
"testing"
"time"
"github.com/ahmetb/go-httpbin"
"github.com/andybalholm/brotli"
"github.com/stretchr/testify/require"
"golang.org/x/net/html/charset"
)
var (
errNoFollow = errors.New("do not follow redirect")
)
func testServer() *httptest.Server {
mux := httpbin.GetMux()
return httptest.NewServer(mux)
}
func noRedirectClient() *http.Client {
return &http.Client{
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return errNoFollow
}}
}
func noFollowGet(cl *http.Client, u string) (*http.Response, error) {
return noFollow("GET", cl, u)
}
func noFollow(method string, cl *http.Client, u string) (*http.Response, error) {
req, err := http.NewRequest(method, u, nil)
if err != nil {
return nil, fmt.Errorf("failed to create request: method=%s url=%q error=%v", method, u, err)
}
resp, err := cl.Do(req)
if err != nil {
e, ok := err.(*url.Error)
if ok && e.Err != errNoFollow {
return nil, fmt.Errorf("failed to get: method=%s url=%q error=%v", method, u, err)
}
}
return resp, nil
}
func get(t *testing.T, url string) []byte {
return req(t, url, "GET", nil)
}
func post(t *testing.T, url string, body []byte) []byte {
return req(t, url, "POST", body)
}
func req(t *testing.T, url, method string, body []byte) []byte {
cl := &http.Client{}
r, err := http.NewRequest(method, url, bytes.NewReader(body))
require.Nil(t, err, "cannot create request")
resp, err := cl.Do(r)
require.Nil(t, err, "request failed")
defer resp.Body.Close()
require.Equal(t, http.StatusOK, resp.StatusCode)
b, err := ioutil.ReadAll(resp.Body)
require.Nil(t, err, "failed to read response body")
return b
}
func assertLocationHeader(t *testing.T, u, expected string) {
resp, err := noRedirectClient().Get(u)
require.IsType(t, &url.Error{}, err, u)
require.Equal(t, err.(*url.Error).Err, errNoFollow, u)
require.Equal(t, http.StatusFound, resp.StatusCode, u)
require.Equal(t, expected, resp.Header.Get("Location"), u)
}
func TestHome(t *testing.T) {
srv := testServer()
defer srv.Close()
b := get(t, srv.URL)
require.Regexp(t, "<!DOCTYPE html>", string(b))
}
func TestIP(t *testing.T) {
srv := testServer()
defer srv.Close()
b := get(t, srv.URL+"/ip")
v := struct {
Origin string `json:"origin"`
}{}
require.Nil(t, json.Unmarshal(b, &v))
require.Equal(t, "127.0.0.1", v.Origin)
}
func TestUserAgent(t *testing.T) {
srv := testServer()
defer srv.Close()
b := get(t, srv.URL+"/user-agent")
v := struct {
UA string `json:"user-agent"`
}{}
require.Nil(t, json.Unmarshal(b, &v))
require.NotEmpty(t, v.UA)
}
func TestHeaders(t *testing.T) {
srv := testServer()
defer srv.Close()
b := get(t, srv.URL+"/headers")
v := struct {
Headers map[string]string `json:"headers"`
}{}
require.Nil(t, json.Unmarshal(b, &v))
require.NotEmpty(t, v.Headers["User-Agent"]) // provided by default Go HTTP client
}
func TestGet(t *testing.T) {
srv := testServer()
defer srv.Close()
b := get(t, srv.URL+"/get?k1=v1&k1=v2&k3=v3")
v := struct {
Args map[string]interface{} `json:"args"`
Headers map[string]string `json:"headers"`
Origin string `json:"origin"`
}{}
require.Nil(t, json.Unmarshal(b, &v))
require.NotEmpty(t, v.Args, "args empty")
require.EqualValues(t, map[string]interface{}{
"k1": []interface{}{"v1", "v2"},
"k3": "v3",
}, v.Args)
require.NotEmpty(t, v.Headers)
require.NotEmpty(t, v.Origin)
}
func TestPost(t *testing.T) {
srv := testServer()
defer srv.Close()
data := `{[{"k1": "v1"}]}`
b := post(t, srv.URL+"/post?k1=v1&k1=v2&k3=v3", []byte(data))
v := struct {
Args map[string]interface{} `json:"args"`
Headers map[string]string `json:"headers"`
Origin string `json:"origin"`
Data string `json:"data"`
JSON interface{} `json:"json"`
}{}
require.Nil(t, json.Unmarshal(b, &v))
require.EqualValues(t, map[string]interface{}{
"k1": []interface{}{"v1", "v2"},
"k3": "v3",
}, v.Args)
require.EqualValues(t, data, v.Data)
require.NotEmpty(t, v.Headers)
require.NotEmpty(t, v.Origin)
}
func TestRedirect(t *testing.T) {
srv := testServer()
defer srv.Close()
assertLocationHeader(t, srv.URL+"/redirect/0", "/get")
assertLocationHeader(t, srv.URL+"/redirect/1", "/get")
assertLocationHeader(t, srv.URL+"/redirect/2", "/redirect/1")
assertLocationHeader(t, srv.URL+"/redirect/100", "/redirect/99")
}
func TestAbsoluteRedirect(t *testing.T) {
srv := testServer()
defer srv.Close()
assertLocationHeader(t, srv.URL+"/absolute-redirect/0", srv.URL+"/get")
assertLocationHeader(t, srv.URL+"/absolute-redirect/1", srv.URL+"/get")
assertLocationHeader(t, srv.URL+"/absolute-redirect/2", srv.URL+"/absolute-redirect/1")
assertLocationHeader(t, srv.URL+"/absolute-redirect/100", srv.URL+"/absolute-redirect/99")
}
func TestRedirectTo(t *testing.T) {
srv := testServer()
defer srv.Close()
assertLocationHeader(t, srv.URL+"/redirect-to?url=ip", "ip")
assertLocationHeader(t, srv.URL+"/redirect-to?url=/ip", "/ip")
assertLocationHeader(t, srv.URL+"/redirect-to?url=http%3A%2F%2Fexample.com%2F", "http://example.com/")
}
func TestStatus_assertValidCodes(t *testing.T) {
srv := testServer()
defer srv.Close()
methods := []string{
http.MethodGet,
http.MethodPost,
http.MethodPut,
http.MethodDelete,
http.MethodPatch,
http.MethodOptions,
http.MethodTrace,
}
codes := []int{200, 201, 202, 203, 204, 205, 206, 207, 208, 226,
300, 301, 302, 303, 304, 305, 307, 308, 400, 401, 402, 403, 404, 405, 406,
407, 408, 409, 410, 411, 412, 413, 414, 415, 416, 417, 418, 422, 423, 424,
426, 428, 429, 431, 451, 500, 501, 502, 503, 504, 505, 506, 507, 508, 510, 511}
for _, method := range methods {
for _, code := range codes {
u := fmt.Sprintf("%s/status/%d", srv.URL, code)
resp, err := noFollow(method, noRedirectClient(), u)
require.NoErrorf(t, err, "%s %s", method, u)
require.Equalf(t, code, resp.StatusCode, "invalid status from %s %s", method, u)
}
}
}
func TestStatus_invalidCodeWorks(t *testing.T) {
srv := testServer()
defer srv.Close()
code := 777
u := fmt.Sprintf("%s/status/%d", srv.URL, code)
resp, err := noFollowGet(noRedirectClient(), u)
require.Nil(t, err, u)
require.Equal(t, code, resp.StatusCode, u)
}
func TestStatus_3xxLocationHeader(t *testing.T) {
srv := testServer()
defer srv.Close()
codes := []int{301, 302, 303, 305, 307}
for _, code := range codes {
u := fmt.Sprintf("%s/status/%d", srv.URL, code)
resp, err := noFollowGet(noRedirectClient(), u)
require.Nil(t, err, u)
require.NotEmpty(t, resp.Header.Get("Location"), "code=%d", code)
}
}
func TestBytes_size(t *testing.T) {
srv := testServer()
defer srv.Close()
sizes := []int{
0, // empty
1, // 1 byte
httpbin.BinaryChunkSize - 1, // off by one case
httpbin.BinaryChunkSize, // off by one case
httpbin.BinaryChunkSize + 1, // off by one case
1 * 1024 * 1024, // 1 MB
100 * 1024 * 1024, // 100 MB
}
for _, size := range sizes {
b := get(t, srv.URL+fmt.Sprintf("/bytes/%d", size))
require.Equal(t, size, len(b), "wrong Content-Length for %d", size)
}
}
func TestBytes_noSeed(t *testing.T) {
srv := testServer()
defer srv.Close()
u := srv.URL + "/bytes/1024"
b1 := get(t, u)
b2 := get(t, u)
require.NotEqual(t, b1, b2, "generated the same bytes in multiple runs")
}
func TestBytes_seed(t *testing.T) {
srv := testServer()
defer srv.Close()
u := srv.URL + "/bytes/1024?seed=1"
b1 := get(t, u)
b2 := get(t, u)
require.Equal(t, b1, b2, "generated different bytes for the same seed")
}
func TestDelay_supportsFloat(t *testing.T) {
srv := testServer()
defer srv.Close()
n := 0.5
s := time.Now()
_ = get(t, srv.URL+fmt.Sprintf("/delay/%v", n))
e := time.Since(s).Seconds()
require.InEpsilon(t, e, n, 0.2, "delay=%v elapsed=%vs", n, e)
}
func TestDelay_limited(t *testing.T) {
srv := testServer()
defer srv.Close()
orig := httpbin.DelayMax
defer func() { httpbin.DelayMax = orig }()
httpbin.DelayMax = 300 * time.Millisecond
s := time.Now()
_ = get(t, srv.URL+"/delay/20")
e := time.Since(s).Seconds()
require.InEpsilon(t, e, 0.3, 0.1, "max=%v elapsed=%vs", httpbin.DelayMax, e)
}
func TestStream(t *testing.T) {
srv := testServer()
defer srv.Close()
orig := httpbin.StreamInterval
new := time.Millisecond * 100
httpbin.StreamInterval = new
defer func() { httpbin.StreamInterval = orig }()
total := 10
resp, err := http.Get(srv.URL + fmt.Sprintf("/stream/%d", total))
require.Nil(t, err, "request failed")
defer resp.Body.Close()
require.Equal(t, http.StatusOK, resp.StatusCode)
dec := json.NewDecoder(resp.Body)
var lastMsg time.Time
var m struct {
N int `json:"n"`
Time time.Time `json:"time"`
}
n := 0
for {
err := dec.Decode(&m)
if err == io.EOF {
break
}
require.Nil(t, err, "cannot decode msg")
t.Logf("msg {n=%v, time=%v} -- recvd at %v", m.N, m.Time, time.Now().UTC())
if lastMsg.IsZero() {
lastMsg = time.Now()
} else {
elapsedMs := time.Since(lastMsg).Seconds() * 1000
require.InDelta(t, int(new/time.Millisecond), int(elapsedMs), 20, "time since last msg=%dms", elapsedMs)
lastMsg = time.Now()
}
n++
}
require.Equal(t, total, n, "some messages not received")
}
func TestCookies(t *testing.T) {
srv := testServer()
defer srv.Close()
u, err := url.Parse(srv.URL)
require.Nil(t, err)
cj, err := cookiejar.New(nil)
require.Nil(t, err)
cj.SetCookies(u, []*http.Cookie{
{Name: "k1", Value: "v1"},
{Name: "k2", Value: "v2"},
})
cl := &http.Client{Jar: cj}
resp, err := cl.Get(srv.URL + "/cookies")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusOK, resp.StatusCode)
b, err := ioutil.ReadAll(resp.Body)
require.Nil(t, err)
var v struct {
Cookies map[string]string `json:"cookies"`
}
require.Nil(t, json.Unmarshal(b, &v))
require.EqualValues(t, map[string]string{"k1": "v1", "k2": "v2"}, v.Cookies)
}
func TestSetCookies(t *testing.T) {
srv := testServer()
defer srv.Close()
u, err := url.Parse(srv.URL)
require.Nil(t, err)
cj, err := cookiejar.New(nil)
require.Nil(t, err)
cl := noRedirectClient()
cl.Jar = cj
resp, err := noFollowGet(cl, srv.URL+"/cookies/set?k1=v1&k2=v2")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusFound, resp.StatusCode)
require.Equal(t, "/cookies", resp.Header.Get("Location"))
cs := cj.Cookies(u)
m := make(map[string]string, len(cs))
for _, v := range cs {
m[v.Name] = v.Value
}
require.EqualValues(t, map[string]string{"k1": "v1", "k2": "v2"}, m)
}
func TestDeleteCookies(t *testing.T) {
srv := testServer()
defer srv.Close()
u, err := url.Parse(srv.URL)
require.Nil(t, err)
cj, err := cookiejar.New(nil)
require.Nil(t, err)
cj.SetCookies(u, []*http.Cookie{
{Name: "k1", Value: "v1"},
{Name: "k2", Value: "v2"},
{Name: "k3", Value: "v3"},
})
cl := noRedirectClient()
cl.Jar = cj
resp, err := noFollowGet(cl, srv.URL+"/cookies/delete?k1&k2")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusFound, resp.StatusCode)
require.Equal(t, "/cookies", resp.Header.Get("Location"))
var cs []string
for _, c := range cj.Cookies(u) {
cs = append(cs, c.String())
}
if runtime.Version() >= "go1.8" {
require.NotContains(t, cs, "k1=")
require.NotContains(t, cs, "k2=")
require.NotContains(t, cs, "k1=v1")
require.NotContains(t, cs, "k2=v2")
require.Contains(t, cs, "k3=v3")
require.Equal(t, 1, len(cs))
} else {
require.Contains(t, cs, "k1=")
require.Contains(t, cs, "k2=")
require.Contains(t, cs, "k3=v3")
require.Equal(t, 3, len(cs))
}
}
func TestDrip_code(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/drip?numbytes=10&duration=0.1&code=500")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusInternalServerError, resp.StatusCode)
b, err := ioutil.ReadAll(resp.Body)
require.Nil(t, err)
require.Equal(t, bytes.Repeat([]byte{'*'}, 10), b)
}
func TestCache_ifModifiedSince(t *testing.T) {
srv := testServer()
defer srv.Close()
req, _ := http.NewRequest("GET", srv.URL+"/cache", nil)
req.Header.Set("If-Modified-Since", "Sat, 29 Oct 1994 19:43:31 GMT")
resp, err := http.DefaultClient.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusNotModified, resp.StatusCode)
require.EqualValues(t, 0, resp.ContentLength)
}
func TestCache_ifNoneMatch(t *testing.T) {
srv := testServer()
defer srv.Close()
req, _ := http.NewRequest("GET", srv.URL+"/cache", nil)
req.Header.Set("If-None-Match", "some-etag")
resp, err := http.DefaultClient.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusNotModified, resp.StatusCode)
require.EqualValues(t, 0, resp.ContentLength)
}
func TestCache_none(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/cache")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusOK, resp.StatusCode)
require.NotEqual(t, int64(0), resp.ContentLength)
}
func TestSetCache_none(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/cache/5")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusOK, resp.StatusCode)
require.Equal(t, "public, max-age=5", resp.Header.Get("Cache-Control"), "Cache-Control header")
require.NotEqual(t, int64(0), resp.ContentLength)
}
func TestGZIP(t *testing.T) {
srv := testServer()
defer srv.Close()
client := new(http.Client)
req, err := http.NewRequest("GET", srv.URL+"/gzip", nil)
require.Nil(t, err)
req.Header.Add("Accept-Encoding", "gzip")
resp, err := client.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, "gzip", resp.Header.Get("Content-Encoding"))
require.EqualValues(t, "application/json", resp.Header.Get("Content-Type"))
zr, err := gzip.NewReader(resp.Body)
require.Nil(t, err)
var v struct {
Gzipped bool `json:"gzipped"`
}
require.Nil(t, json.NewDecoder(zr).Decode(&v))
require.True(t, v.Gzipped)
}
func TestDeflate(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/deflate")
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, "deflate", resp.Header.Get("Content-Encoding"))
var v struct {
Deflated bool `json:"deflated"`
}
rr := flate.NewReader(resp.Body)
defer rr.Close()
require.Nil(t, json.NewDecoder(rr).Decode(&v))
require.True(t, v.Deflated)
}
func TestBrotli(t *testing.T) {
srv := testServer()
defer srv.Close()
client := new(http.Client)
req, err := http.NewRequest("GET", srv.URL+"/brotli", nil)
require.Nil(t, err)
req.Header.Add("Accept-Encoding", "br")
resp, err := client.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, "br", resp.Header.Get("Content-Encoding"))
require.EqualValues(t, "application/json", resp.Header.Get("Content-Type"))
zr := brotli.NewReader(resp.Body)
var v struct {
Compressed bool `json:"compressed"`
}
require.Nil(t, json.NewDecoder(zr).Decode(&v))
require.True(t, v.Compressed)
}
func TestRobotsTXT(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/robots.txt")
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, "text/plain", resp.Header.Get("Content-Type"))
b, err := ioutil.ReadAll(resp.Body)
require.Nil(t, err)
require.EqualValues(t, "User-agent: *\nDisallow: /deny\n", string(b))
}
func TestDeny(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/deny")
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, "text/plain", resp.Header.Get("Content-Type"))
}
func TestBasicAuthHandler_noAuth(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/basic-auth/foouser/foopass")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusUnauthorized, resp.StatusCode)
}
func TestBasicAuthHandler_badCreds(t *testing.T) {
srv := testServer()
defer srv.Close()
req, err := http.NewRequest("GET", srv.URL+"/basic-auth/foouser/foopass", nil)
req.SetBasicAuth("wronguser", "wrongpass")
resp, err := http.DefaultClient.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusUnauthorized, resp.StatusCode)
}
func TestBasicAuthHandler_correctCreds(t *testing.T) {
srv := testServer()
defer srv.Close()
req, err := http.NewRequest("GET", srv.URL+"/basic-auth/foouser/foopass", nil)
req.SetBasicAuth("foouser", "foopass")
resp, err := http.DefaultClient.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusOK, resp.StatusCode)
type tt struct {
Authenticated bool `json:"authenticated"`
User string `json:"user"`
}
var v tt
require.Nil(t, json.NewDecoder(resp.Body).Decode(&v))
require.Equal(t, tt{Authenticated: true, User: "foouser"}, v)
}
func TestHiddenBasicAuthHandler_noAuth(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/hidden-basic-auth/foouser/foopass")
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusNotFound, resp.StatusCode)
}
func TestHiddenBasicAuthHandler_badCreds(t *testing.T) {
srv := testServer()
defer srv.Close()
req, err := http.NewRequest("GET", srv.URL+"/hidden-basic-auth/foouser/foopass", nil)
req.SetBasicAuth("wronguser", "wrongpass")
resp, err := http.DefaultClient.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusNotFound, resp.StatusCode)
}
func TestHiddenBasicAuthHandler_correctCreds(t *testing.T) {
srv := testServer()
defer srv.Close()
req, err := http.NewRequest("GET", srv.URL+"/hidden-basic-auth/foouser/foopass", nil)
req.SetBasicAuth("foouser", "foopass")
resp, err := http.DefaultClient.Do(req)
require.Nil(t, err)
defer resp.Body.Close()
require.Equal(t, http.StatusOK, resp.StatusCode)
type tt struct {
Authenticated bool `json:"authenticated"`
User string `json:"user"`
}
var v tt
require.Nil(t, json.NewDecoder(resp.Body).Decode(&v))
require.Equal(t, tt{Authenticated: true, User: "foouser"}, v)
}
func TestHTML(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/html")
require.Nil(t, err)
defer resp.Body.Close()
doc, err := ioutil.ReadAll(resp.Body)
require.Nil(t, err)
require.Contains(t, string(doc), "Moby-Dick")
}
func TestXML(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/xml")
require.Nil(t, err)
defer resp.Body.Close()
type slide struct {
Type string `xml:"type,attr"`
Title string `xml:"title"`
}
type val struct {
XMLName xml.Name `xml:"slideshow"`
Title string `xml:"title,attr"`
Date string `xml:"date,attr"`
Author string `xml:"author,attr"`
Slides []slide `xml:"slide"`
}
var v val
decoder := xml.NewDecoder(resp.Body)
decoder.CharsetReader = charset.NewReaderLabel
require.Nil(t, decoder.Decode(&v))
require.Equal(t, val{
XMLName: xml.Name{Local: "slideshow"},
Title: "Sample Slide Show",
Date: "Date of publication",
Author: "Yours Truly",
Slides: []slide{
{Type: "all", Title: "Wake up to WonderWidgets!"},
{Type: "all", Title: "Overview"},
}}, v)
}
func TestJPEG(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/image/jpeg")
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, http.StatusOK, resp.StatusCode)
require.EqualValues(t, "image/jpeg", resp.Header.Get("Content-Type"))
}
func TestGIF(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/image/gif")
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, http.StatusOK, resp.StatusCode)
require.EqualValues(t, "image/gif", resp.Header.Get("Content-Type"))
}
func TestPNG(t *testing.T) {
srv := testServer()
defer srv.Close()
resp, err := http.Get(srv.URL + "/image/png")
require.Nil(t, err)
defer resp.Body.Close()
require.EqualValues(t, http.StatusOK, resp.StatusCode)
require.EqualValues(t, "image/png", resp.Header.Get("Content-Type"))
}