func TestNoTimeout(t *testing.T) {
ctx := context.Background()
resp, err := doRequest(ctx)
if resp == nil || err != nil {
t.Fatalf("error received from client: %v %v", err, resp)
}
}
func ExampleWithTimeout() {
// Pass a context with a timeout to tell a blocking function that it
// should abandon its work after the timeout elapses.
ctx, _ := context.WithTimeout(context.Background(), 100*time.Millisecond)
select {
case <-time.After(200 * time.Millisecond):
fmt.Println("overslept")
case <-ctx.Done():
fmt.Println(ctx.Err()) // prints "context deadline exceeded"
}
// Output:
// context deadline exceeded
}
func TestCancelAfterRequest(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
resp, err := doRequest(ctx)
// Cancel before reading the body.
// Request.Body should still be readable after the context is canceled.
cancel()
b, err := ioutil.ReadAll(resp.Body)
if err != nil || string(b) != requestBody {
t.Fatalf("could not read body: %q %v", b, err)
}
}
// golang.org/issue/14065
func TestClosesResponseBodyOnCancel(t *testing.T) {
defer func() { testHookContextDoneBeforeHeaders = nop }()
defer func() { testHookDoReturned = nop }()
defer func() { testHookDidBodyClose = nop }()
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {}))
defer ts.Close()
ctx, cancel := context.WithCancel(context.Background())
// closed when Do enters select case <-ctx.Done()
enteredDonePath := make(chan struct{})
testHookContextDoneBeforeHeaders = func() {
close(enteredDonePath)
}
testHookDoReturned = func() {
// We now have the result (the Flush'd headers) at least,
// so we can cancel the request.
cancel()
// But block the client.Do goroutine from sending
// until Do enters into the <-ctx.Done() path, since
// otherwise if both channels are readable, select
// picks a random one.
<-enteredDonePath
}
sawBodyClose := make(chan struct{})
testHookDidBodyClose = func() { close(sawBodyClose) }
tr := &http.Transport{}
defer tr.CloseIdleConnections()
c := &http.Client{Transport: tr}
req, _ := http.NewRequest("GET", ts.URL, nil)
_, doErr := Do(ctx, c, req)
select {
case <-sawBodyClose:
case <-time.After(5 * time.Second):
t.Fatal("timeout waiting for body to close")
}
if doErr != ctx.Err() {
t.Errorf("Do error = %v; want %v", doErr, ctx.Err())
}
}
func TestCancel(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
go func() {
time.Sleep(requestDuration / 2)
cancel()
}()
resp, err := doRequest(ctx)
if resp != nil || err == nil {
t.Fatalf("expected error, didn't get one. resp: %v", resp)
}
if err != ctx.Err() {
t.Fatalf("expected error from context but got: %v", err)
}
}
func TestExchangeRequest_NonBasicAuth(t *testing.T) {
tr := &mockTransport{
rt: func(r *http.Request) (w *http.Response, err error) {
headerAuth := r.Header.Get("Authorization")
if headerAuth != "" {
t.Errorf("Unexpected authorization header, %v is found.", headerAuth)
}
return nil, errors.New("no response")
},
}
c := &http.Client{Transport: tr}
conf := &Config{
ClientID: "CLIENT_ID",
Endpoint: Endpoint{
AuthURL: "https://accounts.google.com/auth",
TokenURL: "https://accounts.google.com/token",
},
}
ctx := context.WithValue(context.Background(), HTTPClient, c)
conf.Exchange(ctx, "code")
}
func TestCancelAfterHangingRequest(t *testing.T) {
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
w.(http.Flusher).Flush()
<-w.(http.CloseNotifier).CloseNotify()
})
serv := httptest.NewServer(handler)
defer serv.Close()
ctx, cancel := context.WithCancel(context.Background())
resp, err := Get(ctx, nil, serv.URL)
if err != nil {
t.Fatalf("unexpected error in Get: %v", err)
}
// Cancel befer reading the body.
// Reading Request.Body should fail, since the request was
// canceled before anything was written.
cancel()
done := make(chan struct{})
go func() {
b, err := ioutil.ReadAll(resp.Body)
if len(b) != 0 || err == nil {
t.Errorf(`Read got (%q, %v); want ("", error)`, b, err)
}
close(done)
}()
select {
case <-time.After(1 * time.Second):
t.Errorf("Test timed out")
case <-done:
}
}