Files
lingniu-vehicle-ingest/go/vehicle-gateway/internal/feichibridge/service_test.go

124 lines
3.5 KiB
Go

package feichibridge
import (
"context"
"errors"
"log/slog"
"path/filepath"
"sync"
"testing"
"time"
)
type fakeSource struct {
vehicles []Vehicle
record Record
}
func (f *fakeSource) Vehicles(context.Context) ([]Vehicle, error) {
return append([]Vehicle(nil), f.vehicles...), nil
}
func (f *fakeSource) Snapshot(context.Context, string) (Snapshot, error) {
return Snapshot{DataItems: map[string]string(f.record)}, nil
}
func (f *fakeSource) History(context.Context, string, time.Time, time.Time) ([]Record, error) {
return nil, nil
}
type fakeTarget struct {
mu sync.Mutex
frames [][]byte
sendErr error
lastACK time.Time
}
func (f *fakeTarget) Connect(context.Context) error { return nil }
func (f *fakeTarget) Close() error { return nil }
func (f *fakeTarget) LastACK() time.Time { return f.lastACK }
func (f *fakeTarget) Send(_ context.Context, frame []byte) error {
f.mu.Lock()
defer f.mu.Unlock()
if f.sendErr != nil {
return f.sendErr
}
f.frames = append(f.frames, append([]byte(nil), frame...))
f.lastACK = time.Now()
return nil
}
func TestRealtimeCommitsOnlyAfterACKAndDeduplicates(t *testing.T) {
now := time.Now().In(shanghai).Truncate(time.Second)
source := &fakeSource{
vehicles: []Vehicle{{
VehicleID: "id-1", VIN: "LTEST32960VIN0001", RuleTypeName: "GB_T32960",
}},
record: Record{"2000": now.Format("2006-01-02 15:04:05"), "2201": "10"},
}
target := &fakeTarget{}
store, err := OpenStateStore(filepath.Join(t.TempDir(), "state.json"))
if err != nil {
t.Fatal(err)
}
service, err := NewService(ServiceConfig{
SourceStaleAfter: time.Minute,
FetchConcurrency: 1,
}, source, target, store, slog.Default(), nil)
if err != nil {
t.Fatal(err)
}
if err := service.discover(context.Background()); err != nil {
t.Fatal(err)
}
service.pollRealtime(context.Background())
service.pollRealtime(context.Background())
if len(target.frames) != 1 {
t.Fatalf("frames = %d, want 1", len(target.frames))
}
if got := store.Vehicle("LTEST32960VIN0001"); !got.LastRealtimeTime.Equal(now) {
t.Fatalf("committed state = %#v", got)
}
source.record = Record{"2000": now.Add(time.Second).Format("2006-01-02 15:04:05"), "2201": "11"}
target.sendErr = errors.New("target down")
service.pollRealtime(context.Background())
if got := store.Vehicle("LTEST32960VIN0001"); !got.LastRealtimeTime.Equal(now) {
t.Fatalf("cursor advanced without ACK: %#v", got)
}
}
func TestStaleSnapshotIsReissuedOnlyOnce(t *testing.T) {
at := time.Now().In(shanghai).Add(-24 * time.Hour).Truncate(time.Second)
vin := "LTEST32960VIN0002"
source := &fakeSource{
vehicles: []Vehicle{{VehicleID: "id-2", VIN: vin, RuleTypeName: "GB_T32960"}},
record: Record{"2000": at.Format("2006-01-02 15:04:05"), "2201": "0"},
}
target := &fakeTarget{}
store, err := OpenStateStore(filepath.Join(t.TempDir(), "state.json"))
if err != nil {
t.Fatal(err)
}
service, err := NewService(ServiceConfig{
SourceStaleAfter: time.Minute,
FetchConcurrency: 1,
StaleReissueEnabled: true,
}, source, target, store, slog.Default(), nil)
if err != nil {
t.Fatal(err)
}
if err := service.discover(context.Background()); err != nil {
t.Fatal(err)
}
service.pollRealtime(context.Background())
service.pollRealtime(context.Background())
if len(target.frames) != 1 || target.frames[0][2] != CommandReissue {
t.Fatalf("frames = %d command = %#v", len(target.frames), target.frames)
}
state := store.Vehicle(vin)
if !state.LastSnapshotReissueTime.Equal(at) || state.LastSnapshotReissueACKAt.IsZero() {
t.Fatalf("reissue state = %#v", state)
}
}