feat: 实现发送质量监控与报备状态消息通知

gateway/internal/upstream/wire_timing_test.go

@@ -0,0 +1,36 @@
+package upstream
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func TestUnavailableConnectionNeverClaimsWireSubmitTime(t *testing.T) {
+	conn := &connection{closed: true}
+	cmd := submitCommandForPacketTest("3.0")
+	parts, err := splitSubmitContent(cmd.CMPP.MsgFmt, cmd.Content)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_, _, result, err := conn.submitPart(context.Background(), cmd, parts[0])
+	if err == nil || result.FirstWireSubmitAt != nil || result.WireTimeSource != "not_written" {
+		t.Fatalf("invalid pre-write timing: %+v / %v", result, err)
+	}
+}
+
+func TestSegmentCarriesActualWireTimeAndReceiptRequest(t *testing.T) {
+	cmd := submitCommandForPacketTest("3.0")
+	cmd.CMPP.RegisteredDelivery = 1
+	result := submitResult(cmd, 1, "upstream-1", "timeout", "SUBMIT_TIMEOUT", "no response")
+	at := time.Now().UTC().Add(-5 * time.Second)
+	result.FirstWireSubmitAt = &at
+	result.WireTimeSource = "gateway_write_complete"
+	segment := submitSegmentResult(submitPart{PkTotal: 2, PkNumber: 1}, 1, "upstream-1", result)
+	if segment.FirstWireSubmitAt == nil || !segment.FirstWireSubmitAt.Equal(at) || segment.WireTimeSource != "gateway_write_complete" || !segment.ReceiptRequested {
+		t.Fatalf("wire timing was lost: %+v", segment)
+	}
+	if !segment.SubmittedAt.After(*segment.FirstWireSubmitAt) {
+		t.Fatal("response timestamp must not replace earlier wire timestamp")
+	}
+}