Files
agentic-coding-workflow/internal/infra/notify/dispatcher_test.go
T

100 lines
2.6 KiB
Go

package notify
import (
"context"
"errors"
"io"
"log/slog"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/google/uuid"
"github.com/stretchr/testify/require"
)
type fakeRepo struct {
mu sync.Mutex
inserted []Message
failNext bool
}
func (f *fakeRepo) Insert(_ context.Context, msg Message) error {
f.mu.Lock()
defer f.mu.Unlock()
if f.failNext {
f.failNext = false
return errors.New("db down")
}
f.inserted = append(f.inserted, msg)
return nil
}
func (f *fakeRepo) List(context.Context, uuid.UUID, bool, int) ([]Message, error) { return nil, nil }
func (f *fakeRepo) CountUnread(context.Context, uuid.UUID) (int, error) { return 0, nil }
func (f *fakeRepo) MarkRead(context.Context, uuid.UUID, uuid.UUID) error { return nil }
func (f *fakeRepo) MarkAllRead(context.Context, uuid.UUID) error { return nil }
type spyNotifier struct {
name Channel
count atomic.Int32
fail bool
}
func (s *spyNotifier) Name() Channel { return s.name }
func (s *spyNotifier) Send(context.Context, Message) error {
s.count.Add(1)
if s.fail {
return errors.New("send failed")
}
return nil
}
func newTestLogger() *slog.Logger {
return slog.New(slog.NewJSONHandler(io.Discard, nil))
}
func TestDispatch_PersistsThenFansOut(t *testing.T) {
repo := &fakeRepo{}
spy := &spyNotifier{name: ChannelDummy}
d := NewDispatcher(repo, newTestLogger())
d.Register(spy)
require.NoError(t, d.Dispatch(context.Background(), Message{
UserID: uuid.New(), Topic: "x", Severity: SeverityInfo,
Title: "t", Body: "b",
}))
require.Len(t, repo.inserted, 1)
require.NotEqual(t, uuid.Nil, repo.inserted[0].ID, "ID 应被 dispatcher 填充")
require.Eventually(t, func() bool { return spy.count.Load() == 1 }, time.Second, 10*time.Millisecond)
}
func TestDispatch_PersistFailureReturnsError_DoesNotFanout(t *testing.T) {
repo := &fakeRepo{failNext: true}
spy := &spyNotifier{name: ChannelDummy}
d := NewDispatcher(repo, newTestLogger())
d.Register(spy)
err := d.Dispatch(context.Background(), Message{UserID: uuid.New(), Topic: "x"})
require.Error(t, err)
time.Sleep(50 * time.Millisecond)
require.Equal(t, int32(0), spy.count.Load())
}
func TestDispatch_NotifierFailureDoesNotBlockOthers(t *testing.T) {
repo := &fakeRepo{}
bad := &spyNotifier{name: "bad", fail: true}
good := &spyNotifier{name: "good"}
d := NewDispatcher(repo, newTestLogger())
d.Register(bad)
d.Register(good)
require.NoError(t, d.Dispatch(context.Background(), Message{UserID: uuid.New()}))
require.Eventually(t, func() bool {
return bad.count.Load() == 1 && good.count.Load() == 1
}, time.Second, 10*time.Millisecond)
}