85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
package eventbus
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import (
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"context"
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"errors"
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"testing"
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"time"
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"lingniu-vehicle-ingest/go/vehicle-gateway/internal/envelope"
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)
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func TestRetryingSinkRetriesRawUntilSuccess(t *testing.T) {
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delegate := &flakySink{rawFailures: 1}
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sink := NewRetryingSink(delegate, RetryConfig{Attempts: 3})
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err := sink.PublishRaw(context.Background(), envelope.FrameEnvelope{Protocol: envelope.ProtocolJT808})
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if err != nil {
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t.Fatalf("PublishRaw() error = %v", err)
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}
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if delegate.rawCalls != 2 {
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t.Fatalf("raw calls = %d, want 2", delegate.rawCalls)
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}
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}
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func TestRetryingSinkReturnsLastErrorAfterAttempts(t *testing.T) {
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delegate := &flakySink{rawFailures: 3}
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sink := NewRetryingSink(delegate, RetryConfig{Attempts: 2})
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err := sink.PublishRaw(context.Background(), envelope.FrameEnvelope{Protocol: envelope.ProtocolJT808})
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if !errors.Is(err, errFlakyPublish) {
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t.Fatalf("PublishRaw() error = %v, want %v", err, errFlakyPublish)
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}
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if delegate.rawCalls != 2 {
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t.Fatalf("raw calls = %d, want 2", delegate.rawCalls)
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}
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}
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func TestRetryingSinkStopsWhenContextCanceledDuringBackoff(t *testing.T) {
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delegate := &flakySink{rawFailures: 10}
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sink := NewRetryingSink(delegate, RetryConfig{Attempts: 5, Backoff: time.Minute})
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ctx, cancel := context.WithCancel(context.Background())
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cancel()
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err := sink.PublishRaw(ctx, envelope.FrameEnvelope{Protocol: envelope.ProtocolJT808})
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if !errors.Is(err, context.Canceled) {
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t.Fatalf("PublishRaw() error = %v, want context canceled", err)
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}
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if delegate.rawCalls != 1 {
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t.Fatalf("raw calls = %d, want 1", delegate.rawCalls)
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}
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}
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var errFlakyPublish = errors.New("publish failed")
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type flakySink struct {
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rawFailures int
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unifiedFailures int
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rawCalls int
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unifiedCalls int
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}
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func (s *flakySink) PublishRaw(context.Context, envelope.FrameEnvelope) error {
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s.rawCalls++
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if s.rawCalls <= s.rawFailures {
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return errFlakyPublish
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}
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return nil
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}
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func (s *flakySink) PublishUnified(context.Context, envelope.FrameEnvelope) error {
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s.unifiedCalls++
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if s.unifiedCalls <= s.unifiedFailures {
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return errFlakyPublish
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}
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return nil
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}
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func (s *flakySink) PublishFields(context.Context, envelope.FrameEnvelope) error {
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return nil
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}
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func (s *flakySink) Close() error {
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return nil
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}
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