102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
package main
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import (
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"context"
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"encoding/json"
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"strings"
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"testing"
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"github.com/segmentio/kafka-go"
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"lingniu-vehicle-ingest/go/vehicle-gateway/internal/envelope"
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"lingniu-vehicle-ingest/go/vehicle-gateway/internal/metrics"
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)
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func TestProcessStatMessageUsesUncancelledContextForAppendAndCommit(t *testing.T) {
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parent, cancel := context.WithCancel(context.Background())
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cancel()
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env := envelope.FrameEnvelope{
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Protocol: envelope.ProtocolJT808,
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MessageID: "0x0200",
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Phone: "13307795425",
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EventTimeMS: 1782918600000,
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ReceivedAtMS: 1782918600000,
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ParseStatus: envelope.ParseOK,
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}
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payload, err := json.Marshal(env)
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if err != nil {
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t.Fatal(err)
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}
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appender := &contextCheckingStatAppender{}
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committer := &contextCheckingStatCommitter{}
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processStatMessage(parent, discardStatLogger{}, nil, appender, committer, kafka.Message{Value: payload})
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if appender.ctxErr != nil {
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t.Fatalf("appender saw cancelled context: %v", appender.ctxErr)
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}
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if committer.ctxErr != nil {
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t.Fatalf("committer saw cancelled context: %v", committer.ctxErr)
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}
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if appender.count != 1 || committer.count != 1 {
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t.Fatalf("appends=%d commits=%d", appender.count, committer.count)
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}
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}
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func TestProcessStatMessageRecordsMetrics(t *testing.T) {
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env := envelope.FrameEnvelope{Protocol: envelope.ProtocolJT808, Phone: "13307795425", MessageID: "0x0200"}
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payload, err := json.Marshal(env)
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if err != nil {
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t.Fatal(err)
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}
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registry := metrics.NewRegistry()
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processStatMessage(
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context.Background(),
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discardStatLogger{},
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registry,
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&contextCheckingStatAppender{},
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&contextCheckingStatCommitter{},
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kafka.Message{Topic: "vehicle.raw.jt808.v1", Value: payload},
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)
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text := registry.Render()
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for _, want := range []string{
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`vehicle_stat_kafka_messages_total{status="received",topic="vehicle.raw.jt808.v1"} 1`,
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`vehicle_stat_writes_total{status="ok",topic="vehicle.raw.jt808.v1"} 1`,
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`vehicle_stat_kafka_commits_total{status="ok",topic="vehicle.raw.jt808.v1"} 1`,
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} {
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if !strings.Contains(text, want) {
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t.Fatalf("metrics missing %s:\n%s", want, text)
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}
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}
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}
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type contextCheckingStatAppender struct {
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ctxErr error
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count int
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}
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func (a *contextCheckingStatAppender) Append(ctx context.Context, _ envelope.FrameEnvelope) error {
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a.ctxErr = ctx.Err()
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a.count++
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return a.ctxErr
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}
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type contextCheckingStatCommitter struct {
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ctxErr error
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count int
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}
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func (c *contextCheckingStatCommitter) CommitMessages(ctx context.Context, _ ...kafka.Message) error {
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c.ctxErr = ctx.Err()
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c.count++
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return c.ctxErr
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}
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type discardStatLogger struct{}
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func (discardStatLogger) Error(string, ...any) {}
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func (discardStatLogger) Warn(string, ...any) {}
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