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106 lines
2.3 KiB
Go
106 lines
2.3 KiB
Go
// Copyright 2015 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !plan9
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package ctxhttp
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import (
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"io"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"testing"
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"time"
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"golang.org/x/net/context"
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)
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const (
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requestDuration = 100 * time.Millisecond
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requestBody = "ok"
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)
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func okHandler(w http.ResponseWriter, r *http.Request) {
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time.Sleep(requestDuration)
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io.WriteString(w, requestBody)
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}
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func TestNoTimeout(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(okHandler))
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defer ts.Close()
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ctx := context.Background()
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res, err := Get(ctx, nil, ts.URL)
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if err != nil {
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t.Fatal(err)
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}
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defer res.Body.Close()
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slurp, err := ioutil.ReadAll(res.Body)
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if err != nil {
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t.Fatal(err)
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}
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if string(slurp) != requestBody {
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t.Errorf("body = %q; want %q", slurp, requestBody)
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}
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}
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func TestCancelBeforeHeaders(t *testing.T) {
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ctx, cancel := context.WithCancel(context.Background())
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blockServer := make(chan struct{})
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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cancel()
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<-blockServer
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io.WriteString(w, requestBody)
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}))
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defer ts.Close()
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defer close(blockServer)
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res, err := Get(ctx, nil, ts.URL)
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if err == nil {
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res.Body.Close()
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t.Fatal("Get returned unexpected nil error")
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}
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if err != context.Canceled {
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t.Errorf("err = %v; want %v", err, context.Canceled)
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}
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}
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func TestCancelAfterHangingRequest(t *testing.T) {
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ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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w.WriteHeader(http.StatusOK)
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w.(http.Flusher).Flush()
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<-w.(http.CloseNotifier).CloseNotify()
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}))
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defer ts.Close()
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ctx, cancel := context.WithCancel(context.Background())
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resp, err := Get(ctx, nil, ts.URL)
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if err != nil {
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t.Fatalf("unexpected error in Get: %v", err)
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}
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// Cancel befer reading the body.
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// Reading Request.Body should fail, since the request was
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// canceled before anything was written.
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cancel()
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done := make(chan struct{})
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go func() {
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b, err := ioutil.ReadAll(resp.Body)
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if len(b) != 0 || err == nil {
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t.Errorf(`Read got (%q, %v); want ("", error)`, b, err)
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}
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close(done)
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}()
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select {
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case <-time.After(1 * time.Second):
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t.Errorf("Test timed out")
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case <-done:
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}
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}
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