chore: directory migration - gateway→server, web→client/electron

server/internal/sse/manager_test.go

@@ -0,0 +1,100 @@
+package sse
+
+import (
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+)
+
+func TestEventRingPushReplay(t *testing.T) {
+	ring := newEventRing(5)
+
+	// 推 3 条
+	for i := 1; i <= 3; i++ {
+		ring.push(StoredEvent{
+			ID:        string(rune('0' + i)),
+			EventType: "test",
+			Data:      []byte(`{"n":` + string(rune('0'+i)) + `}`),
+			Timestamp: time.Now(),
+		})
+	}
+
+	// 空 afterID → 首次连接，不回放（缓冲区未满）
+	rec := httptest.NewRecorder()
+	ring.replay("", rec, rec)
+	if rec.Body.Len() > 0 {
+		t.Error("首次连接不应回放事件，实际:", rec.Body.String())
+	}
+
+	// 有 afterID → 从下一条开始回放
+	rec2 := httptest.NewRecorder()
+	ring.replay("1", rec2, rec2)
+	body := rec2.Body.String()
+	if !strings.Contains(body, "id: 2") {
+		t.Error("afterID=1 应该回放 id:2，实际:", body)
+	}
+	if !strings.Contains(body, "id: 3") {
+		t.Error("afterID=1 应该回放 id:3，实际:", body)
+	}
+	if strings.Contains(body, "id: 1") {
+		t.Error("afterID=1 不应回放 id:1，实际:", body)
+	}
+
+	// 不存在的 afterID → 从头回放全部
+	rec3 := httptest.NewRecorder()
+	ring.replay("999", rec3, rec3)
+	body3 := rec3.Body.String()
+	if !strings.Contains(body3, "id: 1") {
+		t.Error("不存在的 afterID 应从头回放，实际:", body3)
+	}
+}
+
+func TestEventRingOverflow(t *testing.T) {
+	ring := newEventRing(3)
+
+	// 推 5 条（超过容量 3，最旧的 2 条被覆盖）
+	for i := 1; i <= 5; i++ {
+		ring.push(StoredEvent{
+			ID:        string(rune('0' + i)),
+			EventType: "test",
+			Data:      []byte(`{}`),
+			Timestamp: time.Now(),
+		})
+	}
+
+	if !ring.full {
+		t.Fatal("推了 5 条进容量 3 的缓冲区，应该已满")
+	}
+
+	// afterID=2 已被覆盖 → 找不到位置，从头回放全部
+	rec := httptest.NewRecorder()
+	ring.replay("2", rec, rec)
+	body := rec.Body.String()
+	if !strings.Contains(body, "id: 3") || !strings.Contains(body, "id: 5") {
+		t.Error("缓冲区溢出后应能回放可用范围，实际:", body)
+	}
+}
+
+func TestEventRingConcurrent(t *testing.T) {
+	ring := newEventRing(100)
+
+	done := make(chan bool, 10)
+	for i := 0; i < 10; i++ {
+		go func() {
+			for j := 0; j < 200; j++ {
+				ring.push(StoredEvent{
+					ID:        "evt",
+					EventType: "test",
+					Data:      []byte(`{}`),
+					Timestamp: time.Now(),
+				})
+			}
+			done <- true
+		}()
+	}
+	for i := 0; i < 10; i++ {
+		<-done
+	}
+	// 只验证不 panic，不验证内容（并发下顺序无意义）
+}