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Add unit test for device list update debouncing (#2220)
* Add unit test for device list update debouncing * bugfix: actually return stale device lists in the test... Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
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@ -48,13 +48,19 @@ type mockDeviceListUpdaterDatabase struct {
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staleUsers map[string]bool
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prevIDsExist func(string, []int) bool
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storedKeys []api.DeviceMessage
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mu sync.Mutex // protect staleUsers
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}
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// StaleDeviceLists returns a list of user IDs ending with the domains provided who have stale device lists.
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// If no domains are given, all user IDs with stale device lists are returned.
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func (d *mockDeviceListUpdaterDatabase) StaleDeviceLists(ctx context.Context, domains []gomatrixserverlib.ServerName) ([]string, error) {
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d.mu.Lock()
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defer d.mu.Unlock()
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var result []string
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for userID := range d.staleUsers {
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for userID, isStale := range d.staleUsers {
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if !isStale {
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continue
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}
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_, remoteServer, err := gomatrixserverlib.SplitID('@', userID)
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if err != nil {
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return nil, err
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@ -75,6 +81,8 @@ func (d *mockDeviceListUpdaterDatabase) StaleDeviceLists(ctx context.Context, do
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// MarkDeviceListStale sets the stale bit for this user to isStale.
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func (d *mockDeviceListUpdaterDatabase) MarkDeviceListStale(ctx context.Context, userID string, isStale bool) error {
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d.mu.Lock()
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defer d.mu.Unlock()
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d.staleUsers[userID] = isStale
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return nil
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}
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@ -247,3 +255,82 @@ func TestUpdateNoPrevID(t *testing.T) {
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}
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}
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// Test that if we make N calls to ManualUpdate for the same user, we only do it once, assuming the
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// update is still ongoing.
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func TestDebounce(t *testing.T) {
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db := &mockDeviceListUpdaterDatabase{
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staleUsers: make(map[string]bool),
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prevIDsExist: func(string, []int) bool {
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return true
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},
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}
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ap := &mockDeviceListUpdaterAPI{}
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producer := &mockKeyChangeProducer{}
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fedCh := make(chan *http.Response, 1)
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srv := gomatrixserverlib.ServerName("example.com")
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userID := "@alice:example.com"
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keyJSON := `{"user_id":"` + userID + `","device_id":"JLAFKJWSCS","algorithms":["m.olm.v1.curve25519-aes-sha2","m.megolm.v1.aes-sha2"],"keys":{"curve25519:JLAFKJWSCS":"3C5BFWi2Y8MaVvjM8M22DBmh24PmgR0nPvJOIArzgyI","ed25519:JLAFKJWSCS":"lEuiRJBit0IG6nUf5pUzWTUEsRVVe/HJkoKuEww9ULI"},"signatures":{"` + userID + `":{"ed25519:JLAFKJWSCS":"dSO80A01XiigH3uBiDVx/EjzaoycHcjq9lfQX0uWsqxl2giMIiSPR8a4d291W1ihKJL/a+myXS367WT6NAIcBA"}}}`
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incomingFedReq := make(chan struct{})
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fedClient := newFedClient(func(req *http.Request) (*http.Response, error) {
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if req.URL.Path != "/_matrix/federation/v1/user/devices/"+url.PathEscape(userID) {
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return nil, fmt.Errorf("test: invalid path: %s", req.URL.Path)
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}
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close(incomingFedReq)
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return <-fedCh, nil
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})
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updater := NewDeviceListUpdater(db, ap, producer, fedClient, 1)
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if err := updater.Start(); err != nil {
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t.Fatalf("failed to start updater: %s", err)
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}
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// hit this 5 times
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var wg sync.WaitGroup
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wg.Add(5)
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for i := 0; i < 5; i++ {
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go func() {
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defer wg.Done()
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if err := updater.ManualUpdate(context.Background(), srv, userID); err != nil {
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t.Errorf("ManualUpdate: %s", err)
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}
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}()
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}
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// wait until the updater hits federation
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select {
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case <-incomingFedReq:
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case <-time.After(time.Second):
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t.Fatalf("timed out waiting for updater to hit federation")
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}
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// user should be marked as stale
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if !db.staleUsers[userID] {
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t.Errorf("user %s not marked as stale", userID)
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}
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// now send the response over federation
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fedCh <- &http.Response{
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StatusCode: 200,
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Body: ioutil.NopCloser(strings.NewReader(`
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{
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"user_id": "` + userID + `",
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"stream_id": 5,
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"devices": [
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{
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"device_id": "JLAFKJWSCS",
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"keys": ` + keyJSON + `,
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"device_display_name": "Mobile Phone"
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}
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]
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}
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`)),
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}
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close(fedCh)
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// wait until all 5 ManualUpdates return. If we hit federation again we won't send a response
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// and should panic with read on a closed channel
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wg.Wait()
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// user is no longer stale now
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if db.staleUsers[userID] {
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t.Errorf("user %s is marked as stale", userID)
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}
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}
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