feat: build vehicle data platform and production pipeline

go/vehicle-gateway/internal/eventbus/kafka_retry_test.go

@@ -0,0 +1,34 @@
+package eventbus
+
+import (
+	"testing"
+
+	"github.com/segmentio/kafka-go"
+)
+
+func TestMessagesAfterCommittedPrefixesKeepsPartitionGaps(t *testing.T) {
+	messages := []kafka.Message{
+		{Topic: "raw", Partition: 0, Offset: 10},
+		{Topic: "raw", Partition: 1, Offset: 20},
+		{Topic: "raw", Partition: 0, Offset: 11},
+		{Topic: "raw", Partition: 1, Offset: 21},
+		{Topic: "raw", Partition: 0, Offset: 12},
+	}
+	committed := []kafka.Message{
+		{Topic: "raw", Partition: 0, Offset: 10},
+		{Topic: "raw", Partition: 1, Offset: 21},
+	}
+
+	remaining := MessagesAfterCommittedPrefixes(messages, committed)
+	if len(remaining) != 2 || remaining[0].Partition != 0 || remaining[0].Offset != 11 || remaining[1].Offset != 12 {
+		t.Fatalf("remaining = %#v", remaining)
+	}
+}
+
+func TestMessagesAfterCommittedPrefixesWithoutCommitKeepsWholeBatch(t *testing.T) {
+	messages := []kafka.Message{{Topic: "raw", Partition: 0, Offset: 10}}
+	remaining := MessagesAfterCommittedPrefixes(messages, nil)
+	if len(remaining) != 1 || remaining[0].Offset != 10 {
+		t.Fatalf("remaining = %#v", remaining)
+	}
+}