479 lines
18 KiB
Go
479 lines
18 KiB
Go
package phone
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import (
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"context"
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"crypto/sha256"
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"errors"
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"sync"
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"testing"
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"time"
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"github.com/iamxvbaba/td/clock"
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"telesrv/internal/domain"
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)
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type testClock struct {
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mu sync.Mutex
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now time.Time
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}
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func newTestClock() *testClock {
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return &testClock{now: time.Unix(1_700_000_000, 0)}
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}
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func (c *testClock) Now() time.Time {
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c.mu.Lock()
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defer c.mu.Unlock()
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return c.now
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}
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func (c *testClock) Advance(d time.Duration) {
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c.mu.Lock()
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defer c.mu.Unlock()
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c.now = c.now.Add(d)
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}
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func (c *testClock) Timer(d time.Duration) clock.Timer { return clock.System.Timer(d) }
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func (c *testClock) Ticker(d time.Duration) clock.Ticker { return clock.System.Ticker(d) }
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func testProtocol(versions ...string) domain.PhoneCallProtocol {
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if len(versions) == 0 {
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versions = []string{"11.0.0", "10.0.0"}
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}
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return domain.PhoneCallProtocol{
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UDPP2P: true,
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UDPReflector: true,
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MinLayer: 65,
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MaxLayer: 92,
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LibraryVersions: versions,
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}
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}
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func testGA() ([]byte, []byte) {
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ga := make([]byte, 256)
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for i := range ga {
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ga[i] = byte(i + 1)
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}
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hash := sha256.Sum256(ga)
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return ga, hash[:]
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}
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func testGB() []byte {
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gb := make([]byte, 256)
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for i := range gb {
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gb[i] = byte(255 - i%200)
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}
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return gb
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}
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func newTestService(clk clock.Clock, mutate ...func(*Config)) *Service {
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cfg := Config{
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RingTimeout: 90 * time.Second,
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TombstoneTTL: 60 * time.Second,
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MaxActivePerUser: 4,
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SignalingRatePerSecond: 50,
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}
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for _, fn := range mutate {
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fn(&cfg)
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}
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return NewService(cfg, WithClock(clk))
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}
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func mustRequest(t *testing.T, s *Service, caller, callee int64, gaHash []byte) domain.PhoneCall {
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t.Helper()
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call, err := s.RequestCall(context.Background(), caller, domain.PhoneCallRequest{
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CalleeID: callee,
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RandomID: caller*1000 + callee,
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GAHash: gaHash,
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Protocol: testProtocol(),
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PrivacyP2P: true, // rpc 层算定的 phone_p2p 双向放行（P3 起参与 p2p_allowed AND）
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})
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if err != nil {
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t.Fatalf("RequestCall: %v", err)
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}
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return call
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}
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func TestPhoneCallHappyPath(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk)
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ctx := context.Background()
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ga, gaHash := testGA()
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gb := testGB()
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call := mustRequest(t, s, 1, 2, gaHash)
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if call.State != domain.PhoneCallStateRequested || call.AdminID != 1 || call.ParticipantID != 2 {
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t.Fatalf("requested call = %+v", call)
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}
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clk.Advance(2 * time.Second)
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ringing, transitioned, err := s.ReceivedCall(ctx, 2, call.ID, call.AccessHash)
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if err != nil || !transitioned || ringing.State != domain.PhoneCallStateRinging || ringing.ReceiveDate == 0 {
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t.Fatalf("ReceivedCall = %+v transitioned=%v err=%v", ringing, transitioned, err)
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}
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if _, again, err := s.ReceivedCall(ctx, 2, call.ID, call.AccessHash); err != nil || again {
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t.Fatalf("second ReceivedCall transitioned=%v err=%v, want idempotent", again, err)
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}
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accepted, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash, gb, testProtocol(), domain.SessionRef{SessionID: 22})
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if err != nil || accepted.State != domain.PhoneCallStateAccepted {
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t.Fatalf("AcceptCall = %+v err=%v", accepted, err)
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}
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if string(accepted.GB) != string(gb) {
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t.Fatalf("accepted.GB mismatch")
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}
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confirmed, forced, err := s.ConfirmCall(ctx, 1, call.ID, call.AccessHash, ga, 0x1234, testProtocol())
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if err != nil || forced || confirmed.State != domain.PhoneCallStateConfirmed {
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t.Fatalf("ConfirmCall = %+v forced=%v err=%v", confirmed, forced, err)
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}
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if !confirmed.P2PAllowed || confirmed.KeyFingerprint != 0x1234 || confirmed.StartDate == 0 {
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t.Fatalf("confirmed snapshot = %+v", confirmed)
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}
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clk.Advance(30 * time.Second)
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discarded, already, err := s.DiscardCall(ctx, 2, call.ID, call.AccessHash, domain.PhoneCallDiscardReasonHangup, 30)
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if err != nil || already || discarded.State != domain.PhoneCallStateDiscarded || discarded.Duration != 30 {
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t.Fatalf("DiscardCall = %+v already=%v err=%v", discarded, already, err)
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}
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// 双方同时挂断：后到者幂等拿快照，reason 由先到者决定。
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again, already, err := s.DiscardCall(ctx, 1, call.ID, call.AccessHash, domain.PhoneCallDiscardReasonBusy, 0)
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if err != nil || !already || again.DiscardReason != domain.PhoneCallDiscardReasonHangup {
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t.Fatalf("second DiscardCall = %+v already=%v err=%v", again, already, err)
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}
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}
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func TestPhoneCallStateErrors(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk)
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ctx := context.Background()
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ga, gaHash := testGA()
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gb := testGB()
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call := mustRequest(t, s, 1, 2, gaHash)
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// confirm 前置必须 Accepted。
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if _, _, err := s.ConfirmCall(ctx, 1, call.ID, call.AccessHash, ga, 1, testProtocol()); !errors.Is(err, ErrPeerInvalid) {
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t.Fatalf("confirm before accept err = %v, want ErrPeerInvalid", err)
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}
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// 非被叫不能 accept / receivedCall。
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if _, err := s.AcceptCall(ctx, 1, call.ID, call.AccessHash, gb, testProtocol(), domain.SessionRef{}); !errors.Is(err, ErrPeerInvalid) {
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t.Fatalf("accept by caller err = %v, want ErrPeerInvalid", err)
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}
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if _, _, err := s.ReceivedCall(ctx, 1, call.ID, call.AccessHash); !errors.Is(err, ErrPeerInvalid) {
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t.Fatalf("receivedCall by caller err = %v, want ErrPeerInvalid", err)
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}
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// access_hash 不符。
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if _, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash+1, gb, testProtocol(), domain.SessionRef{}); !errors.Is(err, ErrPeerInvalid) {
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t.Fatalf("wrong access hash err = %v, want ErrPeerInvalid", err)
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}
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if _, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash, gb, testProtocol(), domain.SessionRef{}); err != nil {
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t.Fatalf("accept: %v", err)
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}
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if _, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash, gb, testProtocol(), domain.SessionRef{}); !errors.Is(err, ErrAlreadyAccepted) {
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t.Fatalf("double accept err = %v, want ErrAlreadyAccepted", err)
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}
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if _, _, err := s.DiscardCall(ctx, 1, call.ID, call.AccessHash, domain.PhoneCallDiscardReasonHangup, 0); err != nil {
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t.Fatalf("discard: %v", err)
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}
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if _, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash, gb, testProtocol(), domain.SessionRef{}); !errors.Is(err, ErrAlreadyDeclined) {
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t.Fatalf("accept after discard err = %v, want ErrAlreadyDeclined", err)
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}
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}
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func TestPhoneCallGAHashMismatchForcesDiscard(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk)
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ctx := context.Background()
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_, gaHash := testGA()
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call := mustRequest(t, s, 1, 2, gaHash)
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if _, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash, testGB(), testProtocol(), domain.SessionRef{}); err != nil {
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t.Fatalf("accept: %v", err)
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}
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wrong := make([]byte, 256)
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wrong[0] = 0x7
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snap, forced, err := s.ConfirmCall(ctx, 1, call.ID, call.AccessHash, wrong, 1, testProtocol())
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if !errors.Is(err, ErrGAHashMismatch) || !forced {
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t.Fatalf("confirm with wrong ga: forced=%v err=%v", forced, err)
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}
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if snap.State != domain.PhoneCallStateDiscarded || snap.DiscardReason != domain.PhoneCallDiscardReasonDisconnect {
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t.Fatalf("forced discard snapshot = %+v", snap)
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}
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}
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func TestPhoneCallConcurrentAcceptSingleWinner(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk)
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ctx := context.Background()
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_, gaHash := testGA()
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call := mustRequest(t, s, 1, 2, gaHash)
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const devices = 8
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var wg sync.WaitGroup
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wins := make(chan int64, devices)
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losses := make(chan error, devices)
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for i := 0; i < devices; i++ {
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wg.Add(1)
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go func(sessionID int64) {
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defer wg.Done()
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_, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash, testGB(), testProtocol(), domain.SessionRef{SessionID: sessionID})
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if err == nil {
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wins <- sessionID
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} else {
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losses <- err
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}
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}(int64(100 + i))
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}
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wg.Wait()
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close(wins)
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close(losses)
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if len(wins) != 1 {
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t.Fatalf("winners = %d, want exactly 1", len(wins))
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}
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for err := range losses {
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if !errors.Is(err, ErrAlreadyAccepted) {
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t.Fatalf("loser err = %v, want ErrAlreadyAccepted", err)
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}
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}
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winner := <-wins
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snap, ok := s.Lookup(ctx, call.ID, call.AccessHash)
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if !ok || snap.CalleeDevice.SessionID != winner {
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t.Fatalf("callee device = %+v, want session %d", snap.CalleeDevice, winner)
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}
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}
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func TestPhoneCallRandomIDIdempotent(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk)
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ctx := context.Background()
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_, gaHash := testGA()
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req := domain.PhoneCallRequest{CalleeID: 2, RandomID: 777, GAHash: gaHash, Protocol: testProtocol()}
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first, err := s.RequestCall(ctx, 1, req)
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if err != nil {
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t.Fatalf("request: %v", err)
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}
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second, err := s.RequestCall(ctx, 1, req)
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if err != nil || second.ID != first.ID {
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t.Fatalf("retry id = %d err=%v, want %d", second.ID, err, first.ID)
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}
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// 终结后同 random_id 重新可用（新通话）。
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if _, _, err := s.DiscardCall(ctx, 1, first.ID, first.AccessHash, domain.PhoneCallDiscardReasonHangup, 0); err != nil {
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t.Fatalf("discard: %v", err)
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}
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third, err := s.RequestCall(ctx, 1, req)
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if err != nil || third.ID == first.ID {
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t.Fatalf("post-discard request id = %d err=%v, want fresh call", third.ID, err)
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}
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}
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func TestPhoneCallQuotaAndSweep(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk, func(c *Config) { c.MaxActivePerUser = 2 })
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ctx := context.Background()
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_, gaHash := testGA()
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for i := int64(0); i < 2; i++ {
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if _, err := s.RequestCall(ctx, 1, domain.PhoneCallRequest{CalleeID: 10 + i, RandomID: i, GAHash: gaHash, Protocol: testProtocol()}); err != nil {
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t.Fatalf("request %d: %v", i, err)
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}
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}
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if _, err := s.RequestCall(ctx, 1, domain.PhoneCallRequest{CalleeID: 99, RandomID: 99, GAHash: gaHash, Protocol: testProtocol()}); !errors.Is(err, ErrOccupyFailed) {
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t.Fatalf("over quota err = %v, want ErrOccupyFailed", err)
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}
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// 双端崩溃兜底：超过 2×RingTimeout 的僵尸通话被纯年龄 GC 回收，配额释放。
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clk.Advance(181 * time.Second)
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if _, err := s.RequestCall(ctx, 1, domain.PhoneCallRequest{CalleeID: 99, RandomID: 99, GAHash: gaHash, Protocol: testProtocol()}); err != nil {
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t.Fatalf("request after sweep: %v", err)
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}
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}
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func TestPhoneCallTombstoneGC(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk)
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ctx := context.Background()
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_, gaHash := testGA()
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call := mustRequest(t, s, 1, 2, gaHash)
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if _, _, err := s.DiscardCall(ctx, 1, call.ID, call.AccessHash, domain.PhoneCallDiscardReasonHangup, 0); err != nil {
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t.Fatalf("discard: %v", err)
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}
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if _, ok := s.Lookup(ctx, call.ID, call.AccessHash); !ok {
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t.Fatalf("tombstone should be visible before TTL")
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}
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clk.Advance(61 * time.Second)
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mustRequest(t, s, 3, 4, gaHash) // 触发 sweep
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if _, ok := s.Lookup(ctx, call.ID, call.AccessHash); ok {
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t.Fatalf("tombstone should be collected after TTL")
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}
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}
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func TestPhoneCallDurationOnlyWhenConfirmed(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk)
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ctx := context.Background()
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_, gaHash := testGA()
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call := mustRequest(t, s, 1, 2, gaHash)
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snap, _, err := s.DiscardCall(ctx, 2, call.ID, call.AccessHash, domain.PhoneCallDiscardReasonBusy, 55)
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if err != nil || snap.Duration != 0 {
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t.Fatalf("unconfirmed discard duration = %d err=%v, want 0", snap.Duration, err)
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}
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}
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func TestPhoneCallSignal(t *testing.T) {
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clk := newTestClock()
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s := newTestService(clk, func(c *Config) { c.SignalingRatePerSecond = 2 })
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ctx := context.Background()
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_, gaHash := testGA()
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call := mustRequest(t, s, 1, 2, gaHash)
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// Accepted 前不可转发。
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if _, err := s.Signal(ctx, 1, call.ID, call.AccessHash, func(int64, domain.SessionRef) {}); !errors.Is(err, ErrPeerInvalid) {
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t.Fatalf("signal before accept err = %v, want ErrPeerInvalid", err)
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}
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if _, err := s.AcceptCall(ctx, 2, call.ID, call.AccessHash, testGB(), testProtocol(), domain.SessionRef{}); err != nil {
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t.Fatalf("accept: %v", err)
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}
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var forwarded []int64
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forward := func(peer int64, _ domain.SessionRef) { forwarded = append(forwarded, peer) }
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for i := 0; i < 3; i++ {
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if _, err := s.Signal(ctx, 1, call.ID, call.AccessHash, forward); err != nil {
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t.Fatalf("signal %d: %v", i, err)
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}
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}
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// 限速 2/s：第三条被静默丢弃。
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if len(forwarded) != 2 || forwarded[0] != 2 || forwarded[1] != 2 {
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t.Fatalf("forwarded = %v, want [2 2]", forwarded)
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}
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clk.Advance(time.Second)
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if drop, err := s.Signal(ctx, 2, call.ID, call.AccessHash, forward); err != nil || drop {
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t.Fatalf("signal new window drop=%v err=%v", drop, err)
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}
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if forwarded[len(forwarded)-1] != 1 {
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t.Fatalf("callee→caller forward peer = %d, want 1", forwarded[len(forwarded)-1])
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}
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// 终态尾包静默吞掉。
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if _, _, err := s.DiscardCall(ctx, 1, call.ID, call.AccessHash, domain.PhoneCallDiscardReasonHangup, 0); err != nil {
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t.Fatalf("discard: %v", err)
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}
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if drop, err := s.Signal(ctx, 1, call.ID, call.AccessHash, forward); err != nil || !drop {
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t.Fatalf("signal after discard drop=%v err=%v, want drop", drop, err)
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}
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}
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func TestNegotiateProtocol(t *testing.T) {
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base := func(min, max int, versions ...string) domain.PhoneCallProtocol {
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return domain.PhoneCallProtocol{UDPP2P: true, UDPReflector: true, MinLayer: min, MaxLayer: max, LibraryVersions: versions}
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}
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t.Run("layer intersection", func(t *testing.T) {
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out, err := negotiateProtocol(base(65, 92, "9.0.0"), base(70, 110, "9.0.0"))
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if err != nil || out.MinLayer != 70 || out.MaxLayer != 92 {
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t.Fatalf("negotiated = %+v err=%v", out, err)
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}
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})
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t.Run("layer disjoint", func(t *testing.T) {
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if _, err := negotiateProtocol(base(65, 70, "9.0.0"), base(80, 92, "9.0.0")); !errors.Is(err, ErrProtocolCompatLayerInvalid) {
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t.Fatalf("err = %v, want ErrProtocolCompatLayerInvalid", err)
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}
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})
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t.Run("best common version is semver max", func(t *testing.T) {
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out, err := negotiateProtocol(base(65, 92, "11.0.0", "9.0.0", "2.4.4"), base(65, 92, "2.4.4", "9.0.0"))
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if err != nil || len(out.LibraryVersions) != 1 || out.LibraryVersions[0] != "9.0.0" {
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t.Fatalf("versions = %v err=%v, want [9.0.0]", out.LibraryVersions, err)
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}
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})
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t.Run("preferred version beats semver max", func(t *testing.T) {
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// ⚠ "9.0.0" 优先于更高版本：DrKLO 视频 gate 是字符串字典序比较
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//（"1x.0.0" < "2.7.7" 会判不支持视频），且 12/13 走 V3 SCTP 信令。
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out, err := negotiateProtocol(base(65, 92, "13.0.0", "10.0.0", "9.0.0"), base(65, 92, "9.0.0", "10.0.0", "13.0.0"))
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if err != nil || out.LibraryVersions[0] != "9.0.0" {
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t.Fatalf("versions = %v err=%v, want preferred [9.0.0]", out.LibraryVersions, err)
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}
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})
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t.Run("numeric compare fallback not lexicographic", func(t *testing.T) {
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// 交集无 preferred 版本时退化为语义化最高（数值比较，非字典序）。
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out, err := negotiateProtocol(base(65, 92, "10.0.0", "11.0.0"), base(65, 92, "11.0.0", "10.0.0"))
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if err != nil || out.LibraryVersions[0] != "11.0.0" {
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t.Fatalf("versions = %v err=%v, want [11.0.0]", out.LibraryVersions, err)
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}
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})
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t.Run("no common versions passes callee list through", func(t *testing.T) {
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// ⚠ P1-3：版本无交集绝不拒绝通话，透传被叫列表。
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out, err := negotiateProtocol(base(65, 92, "11.0.0"), base(65, 92, "2.4.4", "3.0.0"))
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if err != nil || len(out.LibraryVersions) != 2 || out.LibraryVersions[0] != "2.4.4" {
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t.Fatalf("versions = %v err=%v, want callee passthrough", out.LibraryVersions, err)
|
||
}
|
||
})
|
||
}
|
||
|
||
func TestValidateProtocol(t *testing.T) {
|
||
cases := []struct {
|
||
name string
|
||
p domain.PhoneCallProtocol
|
||
want error
|
||
}{
|
||
{"min over max", domain.PhoneCallProtocol{UDPP2P: true, MinLayer: 93, MaxLayer: 92, LibraryVersions: []string{"9.0.0"}}, ErrProtocolLayerInvalid},
|
||
{"max below 65", domain.PhoneCallProtocol{UDPP2P: true, MinLayer: 60, MaxLayer: 64, LibraryVersions: []string{"9.0.0"}}, ErrProtocolCompatLayerInvalid},
|
||
{"no transport flags", domain.PhoneCallProtocol{MinLayer: 65, MaxLayer: 92, LibraryVersions: []string{"9.0.0"}}, ErrProtocolFlagsInvalid},
|
||
{"no versions", domain.PhoneCallProtocol{UDPP2P: true, MinLayer: 65, MaxLayer: 92}, ErrProtocolFlagsInvalid},
|
||
{"ok", testProtocol(), nil},
|
||
}
|
||
for _, tc := range cases {
|
||
if err := validateProtocol(tc.p); !errors.Is(err, tc.want) {
|
||
t.Fatalf("%s: err = %v, want %v", tc.name, err, tc.want)
|
||
}
|
||
}
|
||
}
|
||
|
||
func TestPhoneCallExpireDue(t *testing.T) {
|
||
clk := newTestClock()
|
||
s := newTestService(clk)
|
||
ctx := context.Background()
|
||
ga, gaHash := testGA()
|
||
|
||
// 三通通话：振铃中（→missed）、Accepted 悬挂（→disconnect）、Confirmed（不回收）。
|
||
ringingCall := mustRequest(t, s, 1, 2, gaHash)
|
||
acceptedCall, err := s.RequestCall(ctx, 3, domain.PhoneCallRequest{CalleeID: 4, RandomID: 1, GAHash: gaHash, Protocol: testProtocol()})
|
||
if err != nil {
|
||
t.Fatalf("request accepted call: %v", err)
|
||
}
|
||
if _, err := s.AcceptCall(ctx, 4, acceptedCall.ID, acceptedCall.AccessHash, testGB(), testProtocol(), domain.SessionRef{}); err != nil {
|
||
t.Fatalf("accept: %v", err)
|
||
}
|
||
confirmedCall, err := s.RequestCall(ctx, 5, domain.PhoneCallRequest{CalleeID: 6, RandomID: 2, GAHash: gaHash, Protocol: testProtocol()})
|
||
if err != nil {
|
||
t.Fatalf("request confirmed call: %v", err)
|
||
}
|
||
if _, err := s.AcceptCall(ctx, 6, confirmedCall.ID, confirmedCall.AccessHash, testGB(), testProtocol(), domain.SessionRef{}); err != nil {
|
||
t.Fatalf("accept confirmed: %v", err)
|
||
}
|
||
if _, _, err := s.ConfirmCall(ctx, 5, confirmedCall.ID, confirmedCall.AccessHash, ga, 1, testProtocol()); err != nil {
|
||
t.Fatalf("confirm: %v", err)
|
||
}
|
||
|
||
if got := s.ExpireDue(ctx, clk.Now()); len(got) != 0 {
|
||
t.Fatalf("nothing should expire yet, got %d", len(got))
|
||
}
|
||
clk.Advance(91 * time.Second)
|
||
expired := s.ExpireDue(ctx, clk.Now())
|
||
if len(expired) != 2 {
|
||
t.Fatalf("expired = %d, want 2 (ringing+accepted)", len(expired))
|
||
}
|
||
reasons := map[int64]domain.PhoneCallDiscardReason{}
|
||
for _, c := range expired {
|
||
reasons[c.ID] = c.DiscardReason
|
||
}
|
||
if reasons[ringingCall.ID] != domain.PhoneCallDiscardReasonMissed {
|
||
t.Fatalf("ringing call reason = %s, want missed", reasons[ringingCall.ID])
|
||
}
|
||
if reasons[acceptedCall.ID] != domain.PhoneCallDiscardReasonDisconnect {
|
||
t.Fatalf("accepted call reason = %s, want disconnect", reasons[acceptedCall.ID])
|
||
}
|
||
// Confirmed 通话不受服务端时长限制。
|
||
if snap, ok := s.Lookup(ctx, confirmedCall.ID, confirmedCall.AccessHash); !ok || snap.State != domain.PhoneCallStateConfirmed {
|
||
t.Fatalf("confirmed call = %+v ok=%v, want untouched", snap, ok)
|
||
}
|
||
// 幂等：再跑一轮无新增。
|
||
if got := s.ExpireDue(ctx, clk.Now()); len(got) != 0 {
|
||
t.Fatalf("second ExpireDue = %d, want 0", len(got))
|
||
}
|
||
}
|