"encoding/base64"
"errors"
"fmt"
+ "internal/testenv"
"io"
- "io/ioutil"
"log"
"net"
. "net/http"
"net/http/httptest"
"net/url"
"reflect"
+ "runtime"
"strconv"
"strings"
"sync"
fmt.Fprintf(w, "User-agent: go\nDisallow: /something/")
})
-// pedanticReadAll works like ioutil.ReadAll but additionally
+// pedanticReadAll works like io.ReadAll but additionally
// verifies that r obeys the documented io.Reader contract.
func pedanticReadAll(r io.Reader) (b []byte, err error) {
var bufa [64]byte
}
}
-type chanWriter chan string
-
-func (w chanWriter) Write(p []byte) (n int, err error) {
- w <- string(p)
- return len(p), nil
-}
-
-func TestClient(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
- ts := httptest.NewServer(robotsTxtHandler)
- defer ts.Close()
+func TestClient(t *testing.T) { run(t, testClient) }
+func testClient(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, robotsTxtHandler).ts
c := ts.Client()
r, err := c.Get(ts.URL)
}
}
-func TestClientHead_h1(t *testing.T) { testClientHead(t, h1Mode) }
-func TestClientHead_h2(t *testing.T) { testClientHead(t, h2Mode) }
-
-func testClientHead(t *testing.T, h2 bool) {
- defer afterTest(t)
- cst := newClientServerTest(t, h2, robotsTxtHandler)
- defer cst.close()
-
+func TestClientHead(t *testing.T) { run(t, testClientHead) }
+func testClientHead(t *testing.T, mode testMode) {
+ cst := newClientServerTest(t, mode, robotsTxtHandler)
r, err := cst.c.Head(cst.ts.URL)
if err != nil {
t.Fatal(err)
if g, e := tr.req.ContentLength, int64(len(expectedBody)); g != e {
t.Errorf("got ContentLength %d, want %d", g, e)
}
- bodyb, err := ioutil.ReadAll(tr.req.Body)
+ bodyb, err := io.ReadAll(tr.req.Body)
if err != nil {
t.Fatalf("ReadAll on req.Body: %v", err)
}
}
}
-func TestClientRedirects(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
+func TestClientRedirects(t *testing.T) { run(t, testClientRedirects) }
+func testClientRedirects(t *testing.T, mode testMode) {
var ts *httptest.Server
- ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts = newClientServerTest(t, mode, 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 {
return
}
fmt.Fprintf(w, "n=%d", n)
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
_, err := c.Get(ts.URL)
- if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
+ 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 {
+ 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 {
+ 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)
}
// Requests with an empty Method should also redirect (Issue 12705)
greq.Method = ""
_, err = c.Do(greq)
- if e, g := "Get /?n=10: stopped after 10 redirects", fmt.Sprintf("%v", err); e != g {
+ if e, g := `Get "/?n=10": stopped after 10 redirects`, fmt.Sprintf("%v", err); e != g {
t.Errorf("with default client Do and empty Method, expected error %q, got %q", e, g)
}
t.Fatalf("Get error: %v", err)
}
res.Body.Close()
- finalUrl := res.Request.URL.String()
+ 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 !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)
}
// Tests that Client redirects' contexts are derived from the original request's context.
-func TestClientRedirectContext(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+func TestClientRedirectsContext(t *testing.T) { run(t, testClientRedirectsContext) }
+func testClientRedirectsContext(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
Redirect(w, r, "/", StatusTemporaryRedirect)
- }))
- defer ts.Close()
+ })).ts
ctx, cancel := context.WithCancel(context.Background())
c := ts.Client()
return errors.New("redirected request's context never expired after root request canceled")
}
}
- req, _ := NewRequest("GET", ts.URL, nil)
- req = req.WithContext(ctx)
+ req, _ := NewRequestWithContext(ctx, "GET", ts.URL, nil)
_, err := c.Do(req)
ue, ok := err.(*url.Error)
if !ok {
`POST /?code=404 "c404"`,
}
want := strings.Join(wantSegments, "\n")
- testRedirectsByMethod(t, "POST", postRedirectTests, want)
+ run(t, func(t *testing.T, mode testMode) {
+ testRedirectsByMethod(t, mode, "POST", postRedirectTests, want)
+ })
}
func TestDeleteRedirects(t *testing.T) {
`DELETE /?code=404 "c404"`,
}
want := strings.Join(wantSegments, "\n")
- testRedirectsByMethod(t, "DELETE", deleteRedirectTests, want)
+ run(t, func(t *testing.T, mode testMode) {
+ testRedirectsByMethod(t, mode, "DELETE", deleteRedirectTests, want)
+ })
}
-func testRedirectsByMethod(t *testing.T, method string, table []redirectTest, want string) {
- defer afterTest(t)
+func testRedirectsByMethod(t *testing.T, mode testMode, method string, table []redirectTest, want string) {
var log struct {
sync.Mutex
bytes.Buffer
}
var ts *httptest.Server
- ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts = newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
log.Lock()
- slurp, _ := ioutil.ReadAll(r.Body)
+ slurp, _ := io.ReadAll(r.Body)
fmt.Fprintf(&log.Buffer, "%s %s %q", r.Method, r.RequestURI, slurp)
if cl := r.Header.Get("Content-Length"); r.Method == "GET" && len(slurp) == 0 && (r.ContentLength != 0 || cl != "") {
fmt.Fprintf(&log.Buffer, " (but with body=%T, content-length = %v, %q)", r.Body, r.ContentLength, cl)
if v := urlQuery.Get("code"); v != "" {
location := ts.URL
if final := urlQuery.Get("next"); final != "" {
- splits := strings.Split(final, ",")
- first, rest := splits[0], splits[1:]
+ first, rest, _ := strings.Cut(final, ",")
location = fmt.Sprintf("%s?code=%s", location, first)
- if len(rest) > 0 {
- location = fmt.Sprintf("%s&next=%s", location, strings.Join(rest, ","))
+ if rest != "" {
+ location = fmt.Sprintf("%s&next=%s", location, rest)
}
}
code, _ := strconv.Atoi(v)
}
w.WriteHeader(code)
}
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
for _, tt := range table {
content := tt.redirectBody
req, _ := NewRequest(method, ts.URL+tt.suffix, strings.NewReader(content))
- req.GetBody = func() (io.ReadCloser, error) { return ioutil.NopCloser(strings.NewReader(content)), nil }
+ req.GetBody = func() (io.ReadCloser, error) { return io.NopCloser(strings.NewReader(content)), nil }
res, err := c.Do(req)
if err != nil {
}
}
-func TestClientRedirectUseResponse(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
+func TestClientRedirectUseResponse(t *testing.T) { run(t, testClientRedirectUseResponse) }
+func testClientRedirectUseResponse(t *testing.T, mode testMode) {
const body = "Hello, world."
var ts *httptest.Server
- ts = httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts = newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
if strings.Contains(r.URL.Path, "/other") {
io.WriteString(w, "wrong body")
} else {
w.WriteHeader(StatusFound)
io.WriteString(w, body)
}
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
c.CheckRedirect = func(req *Request, via []*Request) error {
t.Errorf("status = %d; want %d", res.StatusCode, StatusFound)
}
defer res.Body.Close()
- slurp, err := ioutil.ReadAll(res.Body)
+ slurp, err := io.ReadAll(res.Body)
if err != nil {
t.Fatal(err)
}
}
}
-// Issue 17773: don't follow a 308 (or 307) if the response doesn't
+// Issues 17773 and 49281: don't follow a 3xx if the response doesn't
// have a Location header.
-func TestClientRedirect308NoLocation(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- w.Header().Set("Foo", "Bar")
- w.WriteHeader(308)
- }))
- defer ts.Close()
- c := ts.Client()
- res, err := c.Get(ts.URL)
- if err != nil {
- t.Fatal(err)
- }
- res.Body.Close()
- if res.StatusCode != 308 {
- t.Errorf("status = %d; want %d", res.StatusCode, 308)
- }
- if got := res.Header.Get("Foo"); got != "Bar" {
- t.Errorf("Foo header = %q; want Bar", got)
+func TestClientRedirectNoLocation(t *testing.T) { run(t, testClientRedirectNoLocation) }
+func testClientRedirectNoLocation(t *testing.T, mode testMode) {
+ for _, code := range []int{301, 308} {
+ t.Run(fmt.Sprint(code), func(t *testing.T) {
+ setParallel(t)
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ w.Header().Set("Foo", "Bar")
+ w.WriteHeader(code)
+ }))
+ res, err := cst.c.Get(cst.ts.URL)
+ if err != nil {
+ t.Fatal(err)
+ }
+ res.Body.Close()
+ if res.StatusCode != code {
+ t.Errorf("status = %d; want %d", res.StatusCode, code)
+ }
+ if got := res.Header.Get("Foo"); got != "Bar" {
+ t.Errorf("Foo header = %q; want Bar", got)
+ }
+ })
}
}
// Don't follow a 307/308 if we can't resent the request body.
-func TestClientRedirect308NoGetBody(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
+func TestClientRedirect308NoGetBody(t *testing.T) { run(t, testClientRedirect308NoGetBody) }
+func testClientRedirect308NoGetBody(t *testing.T, mode testMode) {
const fakeURL = "https://localhost:1234/" // won't be hit
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
w.Header().Set("Location", fakeURL)
w.WriteHeader(308)
- }))
- defer ts.Close()
+ })).ts
req, err := NewRequest("POST", ts.URL, strings.NewReader("some body"))
if err != nil {
t.Fatal(err)
return j.perURL[u.Host]
}
-func TestRedirectCookiesJar(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
+func TestRedirectCookiesJar(t *testing.T) { run(t, testRedirectCookiesJar) }
+func testRedirectCookiesJar(t *testing.T, mode testMode) {
var ts *httptest.Server
- ts = httptest.NewServer(echoCookiesRedirectHandler)
- defer ts.Close()
+ ts = newClientServerTest(t, mode, echoCookiesRedirectHandler).ts
c := ts.Client()
c.Jar = new(TestJar)
u, _ := url.Parse(ts.URL)
}
}
-func TestJarCalls(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+func TestJarCalls(t *testing.T) { run(t, testJarCalls, []testMode{http1Mode}) }
+func testJarCalls(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
pathSuffix := r.RequestURI[1:]
if r.RequestURI == "/nosetcookie" {
return // don't set cookies for this path
if r.RequestURI == "/" {
Redirect(w, r, "http://secondhost.fake/secondpath", 302)
}
- }))
- defer ts.Close()
+ })).ts
jar := new(RecordingJar)
c := ts.Client()
c.Jar = jar
return nil
}
-func (j *RecordingJar) logf(format string, args ...interface{}) {
+func (j *RecordingJar) logf(format string, args ...any) {
j.mu.Lock()
defer j.mu.Unlock()
fmt.Fprintf(&j.log, format, args...)
}
-func TestStreamingGet_h1(t *testing.T) { testStreamingGet(t, h1Mode) }
-func TestStreamingGet_h2(t *testing.T) { testStreamingGet(t, h2Mode) }
-
-func testStreamingGet(t *testing.T, h2 bool) {
- defer afterTest(t)
+func TestStreamingGet(t *testing.T) { run(t, testStreamingGet) }
+func testStreamingGet(t *testing.T, mode testMode) {
say := make(chan string)
- cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
w.(Flusher).Flush()
for str := range say {
w.Write([]byte(str))
w.(Flusher).Flush()
}
}))
- defer cst.close()
c := cst.c
res, err := c.Get(cst.ts.URL)
// TestClientWrites verifies that client requests are buffered and we
// don't send a TCP packet per line of the http request + body.
-func TestClientWrites(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
- }))
- defer ts.Close()
+func TestClientWrites(t *testing.T) { run(t, testClientWrites, []testMode{http1Mode}) }
+func testClientWrites(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ })).ts
writes := 0
dialer := func(netz string, addr string) (net.Conn, error) {
}
func TestClientInsecureTransport(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
- ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ run(t, testClientInsecureTransport, []testMode{https1Mode, http2Mode})
+}
+func testClientInsecureTransport(t *testing.T, mode testMode) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
w.Write([]byte("Hello"))
}))
- errc := make(chanWriter, 10) // but only expecting 1
- ts.Config.ErrorLog = log.New(errc, "", 0)
- defer ts.Close()
+ ts := cst.ts
+ errLog := new(strings.Builder)
+ ts.Config.ErrorLog = log.New(errLog, "", 0)
// TODO(bradfitz): add tests for skipping hostname checks too?
// would require a new cert for testing, and probably
}
}
- select {
- case v := <-errc:
- if !strings.Contains(v, "TLS handshake error") {
- t.Errorf("expected an error log message containing 'TLS handshake error'; got %q", v)
- }
- case <-time.After(5 * time.Second):
- t.Errorf("timeout waiting for logged error")
+ cst.close()
+ if !strings.Contains(errLog.String(), "TLS handshake error") {
+ t.Errorf("expected an error log message containing 'TLS handshake error'; got %q", errLog)
}
-
}
func TestClientErrorWithRequestURI(t *testing.T) {
}
func TestClientWithCorrectTLSServerName(t *testing.T) {
- defer afterTest(t)
-
+ run(t, testClientWithCorrectTLSServerName, []testMode{https1Mode, http2Mode})
+}
+func testClientWithCorrectTLSServerName(t *testing.T, mode testMode) {
const serverName = "example.com"
- ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
if r.TLS.ServerName != serverName {
t.Errorf("expected client to set ServerName %q, got: %q", serverName, r.TLS.ServerName)
}
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
c.Transport.(*Transport).TLSClientConfig.ServerName = serverName
}
func TestClientWithIncorrectTLSServerName(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
- defer ts.Close()
- errc := make(chanWriter, 10) // but only expecting 1
- ts.Config.ErrorLog = log.New(errc, "", 0)
+ run(t, testClientWithIncorrectTLSServerName, []testMode{https1Mode, http2Mode})
+}
+func testClientWithIncorrectTLSServerName(t *testing.T, mode testMode) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {}))
+ ts := cst.ts
+ errLog := new(strings.Builder)
+ ts.Config.ErrorLog = log.New(errLog, "", 0)
c := ts.Client()
c.Transport.(*Transport).TLSClientConfig.ServerName = "badserver"
if !strings.Contains(err.Error(), "127.0.0.1") || !strings.Contains(err.Error(), "badserver") {
t.Errorf("wanted error mentioning 127.0.0.1 and badserver; got error: %v", err)
}
- select {
- case v := <-errc:
- if !strings.Contains(v, "TLS handshake error") {
- t.Errorf("expected an error log message containing 'TLS handshake error'; got %q", v)
- }
- case <-time.After(5 * time.Second):
- t.Errorf("timeout waiting for logged error")
+
+ cst.close()
+ if !strings.Contains(errLog.String(), "TLS handshake error") {
+ t.Errorf("expected an error log message containing 'TLS handshake error'; got %q", errLog)
}
}
//
// The httptest.Server has a cert with "example.com" as its name.
func TestTransportUsesTLSConfigServerName(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ run(t, testTransportUsesTLSConfigServerName, []testMode{https1Mode, http2Mode})
+}
+func testTransportUsesTLSConfigServerName(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
w.Write([]byte("Hello"))
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
tr := c.Transport.(*Transport)
}
func TestResponseSetsTLSConnectionState(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewTLSServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ run(t, testResponseSetsTLSConnectionState, []testMode{https1Mode})
+}
+func testResponseSetsTLSConnectionState(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
w.Write([]byte("Hello"))
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
tr := c.Transport.(*Transport)
- tr.TLSClientConfig.CipherSuites = []uint16{tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA}
+ tr.TLSClientConfig.CipherSuites = []uint16{tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA}
+ tr.TLSClientConfig.MaxVersion = tls.VersionTLS12 // to get to pick the cipher suite
tr.Dial = func(netw, addr string) (net.Conn, error) {
return net.Dial(netw, ts.Listener.Addr().String())
}
if res.TLS == nil {
t.Fatal("Response didn't set TLS Connection State.")
}
- if got, want := res.TLS.CipherSuite, tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA; got != want {
+ if got, want := res.TLS.CipherSuite, tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA; got != want {
t.Errorf("TLS Cipher Suite = %d; want %d", got, want)
}
}
// to determine that the server is speaking HTTP.
// See golang.org/issue/11111.
func TestHTTPSClientDetectsHTTPServer(t *testing.T) {
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {}))
+ run(t, testHTTPSClientDetectsHTTPServer, []testMode{http1Mode})
+}
+func testHTTPSClientDetectsHTTPServer(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {})).ts
ts.Config.ErrorLog = quietLog
- defer ts.Close()
_, err := Get(strings.Replace(ts.URL, "http", "https", 1))
if got := err.Error(); !strings.Contains(got, "HTTP response to HTTPS client") {
}
// Verify Response.ContentLength is populated. https://golang.org/issue/4126
-func TestClientHeadContentLength_h1(t *testing.T) {
- testClientHeadContentLength(t, h1Mode)
-}
-
-func TestClientHeadContentLength_h2(t *testing.T) {
- testClientHeadContentLength(t, h2Mode)
-}
-
-func testClientHeadContentLength(t *testing.T, h2 bool) {
- defer afterTest(t)
- cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
+func TestClientHeadContentLength(t *testing.T) { run(t, testClientHeadContentLength) }
+func testClientHeadContentLength(t *testing.T, mode testMode) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
if v := r.FormValue("cl"); v != "" {
w.Header().Set("Content-Length", v)
}
}))
- defer cst.close()
tests := []struct {
suffix string
want int64
if res.ContentLength != tt.want {
t.Errorf("Content-Length = %d; want %d", res.ContentLength, tt.want)
}
- bs, err := ioutil.ReadAll(res.Body)
+ bs, err := io.ReadAll(res.Body)
if err != nil {
t.Fatal(err)
}
}
}
-func TestEmptyPasswordAuth(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
+func TestEmptyPasswordAuth(t *testing.T) { run(t, testEmptyPasswordAuth) }
+func testEmptyPasswordAuth(t *testing.T, mode testMode) {
gopher := "gopher"
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
auth := r.Header.Get("Authorization")
if strings.HasPrefix(auth, "Basic ") {
encoded := auth[6:]
} else {
t.Errorf("Invalid auth %q", auth)
}
- }))
+ })).ts
defer ts.Close()
req, err := NewRequest("GET", ts.URL, nil)
if err != nil {
}
-func TestClientTimeout_h1(t *testing.T) { testClientTimeout(t, h1Mode) }
-func TestClientTimeout_h2(t *testing.T) { testClientTimeout(t, h2Mode) }
-
-func testClientTimeout(t *testing.T, h2 bool) {
- setParallel(t)
- defer afterTest(t)
- testDone := make(chan struct{}) // closed in defer below
+func TestStripPasswordFromError(t *testing.T) {
+ client := &Client{Transport: &recordingTransport{}}
+ testCases := []struct {
+ desc string
+ in string
+ out string
+ }{
+ {
+ desc: "Strip password from error message",
+ in: "http://user:password@dummy.faketld/",
+ out: `Get "http://user:***@dummy.faketld/": dummy impl`,
+ },
+ {
+ desc: "Don't Strip password from domain name",
+ in: "http://user:password@password.faketld/",
+ out: `Get "http://user:***@password.faketld/": dummy impl`,
+ },
+ {
+ desc: "Don't Strip password from path",
+ in: "http://user:password@dummy.faketld/password",
+ out: `Get "http://user:***@dummy.faketld/password": dummy impl`,
+ },
+ {
+ desc: "Strip escaped password",
+ in: "http://user:pa%2Fssword@dummy.faketld/",
+ out: `Get "http://user:***@dummy.faketld/": dummy impl`,
+ },
+ }
+ for _, tC := range testCases {
+ t.Run(tC.desc, func(t *testing.T) {
+ _, err := client.Get(tC.in)
+ if err.Error() != tC.out {
+ t.Errorf("Unexpected output for %q: expected %q, actual %q",
+ tC.in, tC.out, err.Error())
+ }
+ })
+ }
+}
- sawRoot := make(chan bool, 1)
- sawSlow := make(chan bool, 1)
- cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
+func TestClientTimeout(t *testing.T) { run(t, testClientTimeout) }
+func testClientTimeout(t *testing.T, mode testMode) {
+ var (
+ mu sync.Mutex
+ nonce string // a unique per-request string
+ sawSlowNonce bool // true if the handler saw /slow?nonce=<nonce>
+ )
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ _ = r.ParseForm()
if r.URL.Path == "/" {
- sawRoot <- true
- Redirect(w, r, "/slow", StatusFound)
+ Redirect(w, r, "/slow?nonce="+r.Form.Get("nonce"), StatusFound)
return
}
if r.URL.Path == "/slow" {
- sawSlow <- true
+ mu.Lock()
+ if r.Form.Get("nonce") == nonce {
+ sawSlowNonce = true
+ } else {
+ t.Logf("mismatched nonce: received %s, want %s", r.Form.Get("nonce"), nonce)
+ }
+ mu.Unlock()
+
w.Write([]byte("Hello"))
w.(Flusher).Flush()
- <-testDone
+ <-r.Context().Done()
return
}
}))
- defer cst.close()
- defer close(testDone) // before cst.close, to unblock /slow handler
-
- // 200ms should be long enough to get a normal request (the /
- // handler), but not so long that it makes the test slow.
- const timeout = 200 * time.Millisecond
- cst.c.Timeout = timeout
- res, err := cst.c.Get(cst.ts.URL)
- if err != nil {
- if strings.Contains(err.Error(), "Client.Timeout") {
- t.Skipf("host too slow to get fast resource in %v", timeout)
+ // Try to trigger a timeout after reading part of the response body.
+ // The initial timeout is empirically usually long enough on a decently fast
+ // machine, but if we undershoot we'll retry with exponentially longer
+ // timeouts until the test either passes or times out completely.
+ // This keeps the test reasonably fast in the typical case but allows it to
+ // also eventually succeed on arbitrarily slow machines.
+ timeout := 10 * time.Millisecond
+ nextNonce := 0
+ for ; ; timeout *= 2 {
+ if timeout <= 0 {
+ // The only way we can feasibly hit this while the test is running is if
+ // the request fails without actually waiting for the timeout to occur.
+ t.Fatalf("timeout overflow")
+ }
+ if deadline, ok := t.Deadline(); ok && !time.Now().Add(timeout).Before(deadline) {
+ t.Fatalf("failed to produce expected timeout before test deadline")
+ }
+ t.Logf("attempting test with timeout %v", timeout)
+ cst.c.Timeout = timeout
+
+ mu.Lock()
+ nonce = fmt.Sprint(nextNonce)
+ nextNonce++
+ sawSlowNonce = false
+ mu.Unlock()
+ res, err := cst.c.Get(cst.ts.URL + "/?nonce=" + nonce)
+ if err != nil {
+ if strings.Contains(err.Error(), "Client.Timeout") {
+ // Timed out before handler could respond.
+ t.Logf("timeout before response received")
+ continue
+ }
+ if runtime.GOOS == "windows" && strings.HasPrefix(runtime.GOARCH, "arm") {
+ testenv.SkipFlaky(t, 43120)
+ }
+ t.Fatal(err)
}
- t.Fatal(err)
- }
- select {
- case <-sawRoot:
- // good.
- default:
- t.Fatal("handler never got / request")
- }
-
- select {
- case <-sawSlow:
- // good.
- default:
- t.Fatal("handler never got /slow request")
- }
+ mu.Lock()
+ ok := sawSlowNonce
+ mu.Unlock()
+ if !ok {
+ t.Fatal("handler never got /slow request, but client returned response")
+ }
- errc := make(chan error, 1)
- go func() {
- _, err := ioutil.ReadAll(res.Body)
- errc <- err
+ _, err = io.ReadAll(res.Body)
res.Body.Close()
- }()
- const failTime = 5 * time.Second
- select {
- case err := <-errc:
if err == nil {
t.Fatal("expected error from ReadAll")
}
} else if !ne.Timeout() {
t.Errorf("net.Error.Timeout = false; want true")
}
- if got := ne.Error(); !strings.Contains(got, "Client.Timeout exceeded") {
+ if got := ne.Error(); !strings.Contains(got, "(Client.Timeout") {
+ if runtime.GOOS == "windows" && strings.HasPrefix(runtime.GOARCH, "arm") {
+ testenv.SkipFlaky(t, 43120)
+ }
t.Errorf("error string = %q; missing timeout substring", got)
}
- case <-time.After(failTime):
- t.Errorf("timeout after %v waiting for timeout of %v", failTime, timeout)
+
+ break
}
}
-func TestClientTimeout_Headers_h1(t *testing.T) { testClientTimeout_Headers(t, h1Mode) }
-func TestClientTimeout_Headers_h2(t *testing.T) { testClientTimeout_Headers(t, h2Mode) }
-
// Client.Timeout firing before getting to the body
-func testClientTimeout_Headers(t *testing.T, h2 bool) {
- setParallel(t)
- defer afterTest(t)
+func TestClientTimeout_Headers(t *testing.T) { run(t, testClientTimeout_Headers) }
+func testClientTimeout_Headers(t *testing.T, mode testMode) {
donec := make(chan bool, 1)
- cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
<-donec
- }))
- defer cst.close()
+ }), optQuietLog)
// Note that we use a channel send here and not a close.
// The race detector doesn't know that we're waiting for a timeout
// and thinks that the waitgroup inside httptest.Server is added to concurrently
t.Error("net.Error.Timeout = false; want true")
}
if got := ne.Error(); !strings.Contains(got, "Client.Timeout exceeded") {
+ if runtime.GOOS == "windows" && strings.HasPrefix(runtime.GOARCH, "arm") {
+ testenv.SkipFlaky(t, 43120)
+ }
t.Errorf("error string = %q; missing timeout substring", got)
}
}
// Issue 16094: if Client.Timeout is set but not hit, a Timeout error shouldn't be
// returned.
-func TestClientTimeoutCancel(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
-
+func TestClientTimeoutCancel(t *testing.T) { run(t, testClientTimeoutCancel) }
+func testClientTimeoutCancel(t *testing.T, mode testMode) {
testDone := make(chan struct{})
ctx, cancel := context.WithCancel(context.Background())
- cst := newClientServerTest(t, h1Mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
w.(Flusher).Flush()
<-testDone
}))
- defer cst.close()
defer close(testDone)
cst.c.Timeout = 1 * time.Hour
t.Fatal(err)
}
cancel()
- _, err = io.Copy(ioutil.Discard, res.Body)
+ _, err = io.Copy(io.Discard, res.Body)
if err != ExportErrRequestCanceled {
t.Fatalf("error = %v; want errRequestCanceled", err)
}
}
-func TestClientRedirectEatsBody_h1(t *testing.T) { testClientRedirectEatsBody(t, h1Mode) }
-func TestClientRedirectEatsBody_h2(t *testing.T) { testClientRedirectEatsBody(t, h2Mode) }
-func testClientRedirectEatsBody(t *testing.T, h2 bool) {
- setParallel(t)
- defer afterTest(t)
+// Issue 49366: if Client.Timeout is set but not hit, no error should be returned.
+func TestClientTimeoutDoesNotExpire(t *testing.T) { run(t, testClientTimeoutDoesNotExpire) }
+func testClientTimeoutDoesNotExpire(t *testing.T, mode testMode) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ w.Write([]byte("body"))
+ }))
+
+ cst.c.Timeout = 1 * time.Hour
+ req, _ := NewRequest("GET", cst.ts.URL, nil)
+ res, err := cst.c.Do(req)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if _, err = io.Copy(io.Discard, res.Body); err != nil {
+ t.Fatalf("io.Copy(io.Discard, res.Body) = %v, want nil", err)
+ }
+ if err = res.Body.Close(); err != nil {
+ t.Fatalf("res.Body.Close() = %v, want nil", err)
+ }
+}
+
+func TestClientRedirectEatsBody_h1(t *testing.T) { run(t, testClientRedirectEatsBody) }
+func testClientRedirectEatsBody(t *testing.T, mode testMode) {
saw := make(chan string, 2)
- cst := newClientServerTest(t, h2, HandlerFunc(func(w ResponseWriter, r *Request) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
saw <- r.RemoteAddr
if r.URL.Path == "/" {
Redirect(w, r, "/foo", StatusFound) // which includes a body
}
}))
- defer cst.close()
res, err := cst.c.Get(cst.ts.URL)
if err != nil {
t.Fatal(err)
}
- _, err = ioutil.ReadAll(res.Body)
+ _, err = io.ReadAll(res.Body)
res.Body.Close()
if err != nil {
t.Fatal(err)
func TestReferer(t *testing.T) {
tests := []struct {
- lastReq, newReq string // from -> to URLs
- want string
+ lastReq, newReq, explicitRef string // from -> to URLs, explicitly set Referer value
+ want string
}{
// don't send user:
- {"http://gopher@test.com", "http://link.com", "http://test.com"},
- {"https://gopher@test.com", "https://link.com", "https://test.com"},
+ {lastReq: "http://gopher@test.com", newReq: "http://link.com", want: "http://test.com"},
+ {lastReq: "https://gopher@test.com", newReq: "https://link.com", want: "https://test.com"},
// don't send a user and password:
- {"http://gopher:go@test.com", "http://link.com", "http://test.com"},
- {"https://gopher:go@test.com", "https://link.com", "https://test.com"},
+ {lastReq: "http://gopher:go@test.com", newReq: "http://link.com", want: "http://test.com"},
+ {lastReq: "https://gopher:go@test.com", newReq: "https://link.com", want: "https://test.com"},
// nothing to do:
- {"http://test.com", "http://link.com", "http://test.com"},
- {"https://test.com", "https://link.com", "https://test.com"},
+ {lastReq: "http://test.com", newReq: "http://link.com", want: "http://test.com"},
+ {lastReq: "https://test.com", newReq: "https://link.com", want: "https://test.com"},
// https to http doesn't send a referer:
- {"https://test.com", "http://link.com", ""},
- {"https://gopher:go@test.com", "http://link.com", ""},
+ {lastReq: "https://test.com", newReq: "http://link.com", want: ""},
+ {lastReq: "https://gopher:go@test.com", newReq: "http://link.com", want: ""},
+
+ // https to http should remove an existing referer:
+ {lastReq: "https://test.com", newReq: "http://link.com", explicitRef: "https://foo.com", want: ""},
+ {lastReq: "https://gopher:go@test.com", newReq: "http://link.com", explicitRef: "https://foo.com", want: ""},
+
+ // don't override an existing referer:
+ {lastReq: "https://test.com", newReq: "https://link.com", explicitRef: "https://foo.com", want: "https://foo.com"},
+ {lastReq: "https://gopher:go@test.com", newReq: "https://link.com", explicitRef: "https://foo.com", want: "https://foo.com"},
}
for _, tt := range tests {
l, err := url.Parse(tt.lastReq)
if err != nil {
t.Fatal(err)
}
- r := ExportRefererForURL(l, n)
+ r := ExportRefererForURL(l, n, tt.explicitRef)
if r != tt.want {
t.Errorf("refererForURL(%q, %q) = %q; want %q", tt.lastReq, tt.newReq, r, tt.want)
}
resp := &Response{
StatusCode: 303,
Header: map[string][]string{"Location": {"http://www.example.com/"}},
- Body: ioutil.NopCloser(strings.NewReader("")),
+ Body: io.NopCloser(strings.NewReader("")),
}
return resp, nil
}
}
// Issue 4800: copy (some) headers when Client follows a redirect.
-func TestClientCopyHeadersOnRedirect(t *testing.T) {
+// Issue 35104: Since both URLs have the same host (localhost)
+// but different ports, sensitive headers like Cookie and Authorization
+// are preserved.
+func TestClientCopyHeadersOnRedirect(t *testing.T) { run(t, testClientCopyHeadersOnRedirect) }
+func testClientCopyHeadersOnRedirect(t *testing.T, mode testMode) {
const (
ua = "some-agent/1.2"
xfoo = "foo-val"
)
var ts2URL string
- ts1 := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts1 := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
want := Header{
"User-Agent": []string{ua},
"X-Foo": []string{xfoo},
"Referer": []string{ts2URL},
"Accept-Encoding": []string{"gzip"},
+ "Cookie": []string{"foo=bar"},
+ "Authorization": []string{"secretpassword"},
}
if !reflect.DeepEqual(r.Header, want) {
t.Errorf("Request.Header = %#v; want %#v", r.Header, want)
} else {
w.Header().Set("Result", "ok")
}
- }))
- defer ts1.Close()
- ts2 := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ })).ts
+ ts2 := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
Redirect(w, r, ts1.URL, StatusFound)
- }))
- defer ts2.Close()
+ })).ts
ts2URL = ts2.URL
c := ts1.Client()
c.CheckRedirect = func(r *Request, via []*Request) error {
want := Header{
- "User-Agent": []string{ua},
- "X-Foo": []string{xfoo},
- "Referer": []string{ts2URL},
+ "User-Agent": []string{ua},
+ "X-Foo": []string{xfoo},
+ "Referer": []string{ts2URL},
+ "Cookie": []string{"foo=bar"},
+ "Authorization": []string{"secretpassword"},
}
if !reflect.DeepEqual(r.Header, want) {
t.Errorf("CheckRedirect Request.Header = %#v; want %#v", r.Header, want)
}
// Issue 22233: copy host when Client follows a relative redirect.
-func TestClientCopyHostOnRedirect(t *testing.T) {
+func TestClientCopyHostOnRedirect(t *testing.T) { run(t, testClientCopyHostOnRedirect) }
+func testClientCopyHostOnRedirect(t *testing.T, mode testMode) {
// Virtual hostname: should not receive any request.
- virtual := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ virtual := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
t.Errorf("Virtual host received request %v", r.URL)
w.WriteHeader(403)
io.WriteString(w, "should not see this response")
- }))
+ })).ts
defer virtual.Close()
virtualHost := strings.TrimPrefix(virtual.URL, "http://")
+ virtualHost = strings.TrimPrefix(virtualHost, "https://")
t.Logf("Virtual host is %v", virtualHost)
// Actual hostname: should not receive any request.
const wantBody = "response body"
var tsURL string
var tsHost string
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
switch r.URL.Path {
case "/":
// Relative redirect.
t.Errorf("Serving unexpected path %q", r.URL.Path)
w.WriteHeader(404)
}
- }))
- defer ts.Close()
+ })).ts
tsURL = ts.URL
tsHost = strings.TrimPrefix(ts.URL, "http://")
+ tsHost = strings.TrimPrefix(tsHost, "https://")
t.Logf("Server host is %v", tsHost)
c := ts.Client()
if resp.StatusCode != 200 {
t.Fatal(resp.Status)
}
- if got, err := ioutil.ReadAll(resp.Body); err != nil || string(got) != wantBody {
+ if got, err := io.ReadAll(resp.Body); err != nil || string(got) != wantBody {
t.Errorf("body = %q; want %q", got, wantBody)
}
}
// Issue 17494: cookies should be altered when Client follows redirects.
-func TestClientAltersCookiesOnRedirect(t *testing.T) {
+func TestClientAltersCookiesOnRedirect(t *testing.T) { run(t, testClientAltersCookiesOnRedirect) }
+func testClientAltersCookiesOnRedirect(t *testing.T, mode testMode) {
cookieMap := func(cs []*Cookie) map[string][]string {
m := make(map[string][]string)
for _, c := range cs {
return m
}
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
var want map[string][]string
got := cookieMap(r.Cookies())
if !reflect.DeepEqual(got, want) {
t.Errorf("redirect %s, Cookie = %v, want %v", c.Value, got, want)
}
- }))
- defer ts.Close()
+ })).ts
jar, _ := cookiejar.New(nil)
c := ts.Client()
{"cookie", "http://foo.com/", "http://bar.com/", false},
{"cookie2", "http://foo.com/", "http://bar.com/", false},
{"authorization", "http://foo.com/", "http://bar.com/", false},
+ {"authorization", "http://foo.com/", "https://foo.com/", true},
+ {"authorization", "http://foo.com:1234/", "http://foo.com:4321/", true},
{"www-authenticate", "http://foo.com/", "http://bar.com/", false},
// But subdomains should work:
{"www-authenticate", "http://foo.com/", "http://foo.com/", true},
{"www-authenticate", "http://foo.com/", "http://sub.foo.com/", true},
{"www-authenticate", "http://foo.com/", "http://notfoo.com/", false},
- {"www-authenticate", "http://foo.com/", "https://foo.com/", false},
+ {"www-authenticate", "http://foo.com/", "https://foo.com/", true},
{"www-authenticate", "http://foo.com:80/", "http://foo.com/", true},
{"www-authenticate", "http://foo.com:80/", "http://sub.foo.com/", true},
{"www-authenticate", "http://foo.com:443/", "https://foo.com/", true},
{"www-authenticate", "http://foo.com:443/", "https://sub.foo.com/", true},
- {"www-authenticate", "http://foo.com:1234/", "http://foo.com/", false},
+ {"www-authenticate", "http://foo.com:1234/", "http://foo.com/", true},
+
+ {"authorization", "http://foo.com/", "http://foo.com/", true},
+ {"authorization", "http://foo.com/", "http://sub.foo.com/", true},
+ {"authorization", "http://foo.com/", "http://notfoo.com/", false},
+ {"authorization", "http://foo.com/", "https://foo.com/", true},
+ {"authorization", "http://foo.com:80/", "http://foo.com/", true},
+ {"authorization", "http://foo.com:80/", "http://sub.foo.com/", true},
+ {"authorization", "http://foo.com:443/", "https://foo.com/", true},
+ {"authorization", "http://foo.com:443/", "https://sub.foo.com/", true},
+ {"authorization", "http://foo.com:1234/", "http://foo.com/", true},
}
for i, tt := range tests {
u0, err := url.Parse(tt.initialURL)
}
}
-func TestClientRedirectTypes(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
-
+func TestClientRedirectTypes(t *testing.T) { run(t, testClientRedirectTypes) }
+func testClientRedirectTypes(t *testing.T, mode testMode) {
tests := [...]struct {
method string
serverStatus int
handlerc := make(chan HandlerFunc, 1)
- ts := httptest.NewServer(HandlerFunc(func(rw ResponseWriter, req *Request) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(rw ResponseWriter, req *Request) {
h := <-handlerc
h(rw, req)
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
for i, tt := range tests {
// Issue 18239: make sure the Transport doesn't retry requests with bodies
// if Request.GetBody is not defined.
-func TestTransportBodyReadError(t *testing.T) {
- setParallel(t)
- defer afterTest(t)
- ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
+func TestTransportBodyReadError(t *testing.T) { run(t, testTransportBodyReadError) }
+func testTransportBodyReadError(t *testing.T, mode testMode) {
+ ts := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
if r.URL.Path == "/ping" {
return
}
buf := make([]byte, 1)
n, err := r.Body.Read(buf)
w.Header().Set("X-Body-Read", fmt.Sprintf("%v, %v", n, err))
- }))
- defer ts.Close()
+ })).ts
c := ts.Client()
tr := c.Transport.(*Transport)
t.Errorf("close calls = %d; want 1", closeCalls)
}
}
+
+type roundTripperWithoutCloseIdle struct{}
+
+func (roundTripperWithoutCloseIdle) RoundTrip(*Request) (*Response, error) { panic("unused") }
+
+type roundTripperWithCloseIdle func() // underlying func is CloseIdleConnections func
+
+func (roundTripperWithCloseIdle) RoundTrip(*Request) (*Response, error) { panic("unused") }
+func (f roundTripperWithCloseIdle) CloseIdleConnections() { f() }
+
+func TestClientCloseIdleConnections(t *testing.T) {
+ c := &Client{Transport: roundTripperWithoutCloseIdle{}}
+ c.CloseIdleConnections() // verify we don't crash at least
+
+ closed := false
+ var tr RoundTripper = roundTripperWithCloseIdle(func() {
+ closed = true
+ })
+ c = &Client{Transport: tr}
+ c.CloseIdleConnections()
+ if !closed {
+ t.Error("not closed")
+ }
+}
+
+func TestClientPropagatesTimeoutToContext(t *testing.T) {
+ errDial := errors.New("not actually dialing")
+ c := &Client{
+ Timeout: 5 * time.Second,
+ Transport: &Transport{
+ DialContext: func(ctx context.Context, netw, addr string) (net.Conn, error) {
+ deadline, ok := ctx.Deadline()
+ if !ok {
+ t.Error("no deadline")
+ } else {
+ t.Logf("deadline in %v", deadline.Sub(time.Now()).Round(time.Second/10))
+ }
+ return nil, errDial
+ },
+ },
+ }
+ c.Get("https://example.tld/")
+}
+
+// Issue 33545: lock-in the behavior promised by Client.Do's
+// docs about request cancellation vs timing out.
+func TestClientDoCanceledVsTimeout(t *testing.T) { run(t, testClientDoCanceledVsTimeout) }
+func testClientDoCanceledVsTimeout(t *testing.T, mode testMode) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ w.Write([]byte("Hello, World!"))
+ }))
+
+ cases := []string{"timeout", "canceled"}
+
+ for _, name := range cases {
+ t.Run(name, func(t *testing.T) {
+ var ctx context.Context
+ var cancel func()
+ if name == "timeout" {
+ ctx, cancel = context.WithTimeout(context.Background(), -time.Nanosecond)
+ } else {
+ ctx, cancel = context.WithCancel(context.Background())
+ cancel()
+ }
+ defer cancel()
+
+ req, _ := NewRequestWithContext(ctx, "GET", cst.ts.URL, nil)
+ _, err := cst.c.Do(req)
+ if err == nil {
+ t.Fatal("Unexpectedly got a nil error")
+ }
+
+ ue := err.(*url.Error)
+
+ var wantIsTimeout bool
+ var wantErr error = context.Canceled
+ if name == "timeout" {
+ wantErr = context.DeadlineExceeded
+ wantIsTimeout = true
+ }
+ if g, w := ue.Timeout(), wantIsTimeout; g != w {
+ t.Fatalf("url.Timeout() = %t, want %t", g, w)
+ }
+ if g, w := ue.Err, wantErr; g != w {
+ t.Errorf("url.Error.Err = %v; want %v", g, w)
+ }
+ })
+ }
+}
+
+type nilBodyRoundTripper struct{}
+
+func (nilBodyRoundTripper) RoundTrip(req *Request) (*Response, error) {
+ return &Response{
+ StatusCode: StatusOK,
+ Status: StatusText(StatusOK),
+ Body: nil,
+ Request: req,
+ }, nil
+}
+
+func TestClientPopulatesNilResponseBody(t *testing.T) {
+ c := &Client{Transport: nilBodyRoundTripper{}}
+
+ resp, err := c.Get("http://localhost/anything")
+ if err != nil {
+ t.Fatalf("Client.Get rejected Response with nil Body: %v", err)
+ }
+
+ if resp.Body == nil {
+ t.Fatalf("Client failed to provide a non-nil Body as documented")
+ }
+ defer func() {
+ if err := resp.Body.Close(); err != nil {
+ t.Fatalf("error from Close on substitute Response.Body: %v", err)
+ }
+ }()
+
+ if b, err := io.ReadAll(resp.Body); err != nil {
+ t.Errorf("read error from substitute Response.Body: %v", err)
+ } else if len(b) != 0 {
+ t.Errorf("substitute Response.Body was unexpectedly non-empty: %q", b)
+ }
+}
+
+// Issue 40382: Client calls Close multiple times on Request.Body.
+func TestClientCallsCloseOnlyOnce(t *testing.T) { run(t, testClientCallsCloseOnlyOnce) }
+func testClientCallsCloseOnlyOnce(t *testing.T, mode testMode) {
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ w.WriteHeader(StatusNoContent)
+ }))
+
+ // Issue occurred non-deterministically: needed to occur after a successful
+ // write (into TCP buffer) but before end of body.
+ for i := 0; i < 50 && !t.Failed(); i++ {
+ body := &issue40382Body{t: t, n: 300000}
+ req, err := NewRequest(MethodPost, cst.ts.URL, body)
+ if err != nil {
+ t.Fatal(err)
+ }
+ resp, err := cst.tr.RoundTrip(req)
+ if err != nil {
+ t.Fatal(err)
+ }
+ resp.Body.Close()
+ }
+}
+
+// issue40382Body is an io.ReadCloser for TestClientCallsCloseOnlyOnce.
+// Its Read reads n bytes before returning io.EOF.
+// Its Close returns nil but fails the test if called more than once.
+type issue40382Body struct {
+ t *testing.T
+ n int
+ closeCallsAtomic int32
+}
+
+func (b *issue40382Body) Read(p []byte) (int, error) {
+ switch {
+ case b.n == 0:
+ return 0, io.EOF
+ case b.n < len(p):
+ p = p[:b.n]
+ fallthrough
+ default:
+ for i := range p {
+ p[i] = 'x'
+ }
+ b.n -= len(p)
+ return len(p), nil
+ }
+}
+
+func (b *issue40382Body) Close() error {
+ if atomic.AddInt32(&b.closeCallsAtomic, 1) == 2 {
+ b.t.Error("Body closed more than once")
+ }
+ return nil
+}
+
+func TestProbeZeroLengthBody(t *testing.T) { run(t, testProbeZeroLengthBody) }
+func testProbeZeroLengthBody(t *testing.T, mode testMode) {
+ reqc := make(chan struct{})
+ cst := newClientServerTest(t, mode, HandlerFunc(func(w ResponseWriter, r *Request) {
+ close(reqc)
+ if _, err := io.Copy(w, r.Body); err != nil {
+ t.Errorf("error copying request body: %v", err)
+ }
+ }))
+
+ bodyr, bodyw := io.Pipe()
+ var gotBody string
+ var wg sync.WaitGroup
+ wg.Add(1)
+ go func() {
+ defer wg.Done()
+ req, _ := NewRequest("GET", cst.ts.URL, bodyr)
+ res, err := cst.c.Do(req)
+ b, err := io.ReadAll(res.Body)
+ if err != nil {
+ t.Error(err)
+ }
+ gotBody = string(b)
+ }()
+
+ select {
+ case <-reqc:
+ // Request should be sent after trying to probe the request body for 200ms.
+ case <-time.After(60 * time.Second):
+ t.Errorf("request not sent after 60s")
+ }
+
+ // Write the request body and wait for the request to complete.
+ const content = "body"
+ bodyw.Write([]byte(content))
+ bodyw.Close()
+ wg.Wait()
+ if gotBody != content {
+ t.Fatalf("server got body %q, want %q", gotBody, content)
+ }
+}