示例#1
0
func TestSimpleHTTPClientDoCancelContextWaitForRoundTrip(t *testing.T) {
	tr := newFakeTransport()
	c := &simpleHTTPClient{transport: tr}

	donechan := make(chan struct{})
	ctx, cancel := context.WithCancel(context.Background())
	go func() {
		c.Do(ctx, &fakeAction{})
		close(donechan)
	}()

	// This should call CancelRequest and begin the cancellation process
	cancel()

	select {
	case <-donechan:
		t.Fatalf("simpleHTTPClient.Do should not have exited yet")
	default:
	}

	tr.finishCancel <- struct{}{}

	select {
	case <-donechan:
		//expected behavior
		return
	case <-time.After(time.Second):
		t.Fatalf("simpleHTTPClient.Do did not exit within 1s")
	}
}
示例#2
0
func TestSimpleHTTPClientDoCancelContextResponseBodyClosed(t *testing.T) {
	tr := newFakeTransport()
	c := &simpleHTTPClient{transport: tr}

	// create an already-cancelled context
	ctx, cancel := context.WithCancel(context.Background())
	cancel()

	body := &checkableReadCloser{ReadCloser: ioutil.NopCloser(strings.NewReader("foo"))}
	go func() {
		// wait that simpleHTTPClient knows the context is already timed out,
		// and calls CancelRequest
		testutil.WaitSchedule()

		// response is returned before cancel effects
		tr.respchan <- &http.Response{Body: body}
	}()

	_, _, err := c.Do(ctx, &fakeAction{})
	if err == nil {
		t.Fatalf("expected non-nil error, got nil")
	}

	if !body.closed {
		t.Fatalf("expected closed body")
	}
}
示例#3
0
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)
	}
}
示例#4
0
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)
	}
}
示例#5
0
func TestSimpleHTTPClientDoCancelContextResponseBodyClosedWithBlockingBody(t *testing.T) {
	tr := newFakeTransport()
	c := &simpleHTTPClient{transport: tr}

	ctx, cancel := context.WithCancel(context.Background())
	body := &checkableReadCloser{ReadCloser: &blockingBody{c: make(chan struct{})}}
	go func() {
		tr.respchan <- &http.Response{Body: body}
		time.Sleep(2 * time.Millisecond)
		// cancel after the body is received
		cancel()
	}()

	_, _, err := c.Do(ctx, &fakeAction{})
	if err != context.Canceled {
		t.Fatalf("expected %+v, got %+v", context.Canceled, err)
	}

	if !body.closed {
		t.Fatalf("expected closed body")
	}
}
示例#6
0
func TestHTTPClusterClientAutoSyncCancelContext(t *testing.T) {
	cf := newStaticHTTPClientFactory([]staticHTTPResponse{
		{
			resp: http.Response{StatusCode: http.StatusOK, Header: http.Header{"Content-Type": []string{"application/json"}}},
			body: []byte(`{"members":[{"id":"2745e2525fce8fe","peerURLs":["http://127.0.0.1:7003"],"name":"node3","clientURLs":["http://127.0.0.1:4003"]},{"id":"42134f434382925","peerURLs":["http://127.0.0.1:2380","http://127.0.0.1:7001"],"name":"node1","clientURLs":["http://127.0.0.1:2379","http://127.0.0.1:4001"]},{"id":"94088180e21eb87b","peerURLs":["http://127.0.0.1:7002"],"name":"node2","clientURLs":["http://127.0.0.1:4002"]}]}`),
		},
	})

	hc := &httpClusterClient{
		clientFactory: cf,
		rand:          rand.New(rand.NewSource(0)),
	}
	err := hc.reset([]string{"http://127.0.0.1:2379"})
	if err != nil {
		t.Fatalf("unexpected error during setup: %#v", err)
	}
	ctx, cancel := context.WithCancel(context.Background())
	cancel()

	err = hc.AutoSync(ctx, time.Hour)
	if err != context.Canceled {
		t.Fatalf("incorrect error value: want=%v got=%v", context.Canceled, err)
	}
}