Files
sub2api/backend/internal/repository/billing_cache_jitter_test.go
yangjianbo bb5a5dd65e test: 完善自动化测试体系(7个模块,73个任务)
系统性地修复、补充和强化项目的自动化测试能力:

1. 测试基础设施修复
   - 修复 stubConcurrencyCache 缺失方法和构造函数参数不匹配
   - 创建 testutil 共享包(stubs.go, fixtures.go, httptest.go)
   - 为所有 Stub 添加编译期接口断言

2. 中间件测试补充
   - 新增 JWT 认证中间件测试(有效/过期/篡改/缺失 Token)
   - 补充 rate_limiter 和 recovery 中间件测试场景

3. 网关核心路径测试
   - 新增账户选择、等待队列、流式响应、并发控制、计费、Claude Code 检测测试
   - 覆盖负载均衡、粘性会话、SSE 转发、槽位管理等关键逻辑

4. 前端测试体系(11个新测试文件,163个测试用例)
   - Pinia stores: auth, app, subscriptions
   - API client: 请求拦截器、响应拦截器、401 刷新
   - Router guards: 认证重定向、管理员权限、简易模式限制
   - Composables: useForm, useTableLoader, useClipboard
   - Components: LoginForm, ApiKeyCreate, Dashboard

5. CI/CD 流水线重构
   - 重构 backend-ci.yml 为统一的 ci.yml
   - 前后端 4 个并行 Job + Postgres/Redis services
   - Race 检测、覆盖率收集与门禁、Docker 构建验证

6. E2E 自动化测试
   - e2e-test.sh 自动化脚本(Docker 启动→健康检查→测试→清理)
   - 用户注册→登录→API Key→网关调用完整链路测试
   - Mock 模式和 API Key 脱敏支持

7. 修复预存问题
   - tlsfingerprint dialer_test.go 缺失 build tag 导致集成测试编译冲突

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-08 12:05:39 +08:00

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package repository
import (
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// --- Task 6.1 验证: math/rand/v2 迁移后 jitteredTTL 行为正确 ---
func TestJitteredTTL_WithinExpectedRange(t *testing.T) {
// jitteredTTL 使用减法抖动: billingCacheTTL - [0, billingCacheJitter)
// 所以结果应在 [billingCacheTTL - billingCacheJitter, billingCacheTTL] 范围内
lowerBound := billingCacheTTL - billingCacheJitter // 5min - 30s = 4min30s
upperBound := billingCacheTTL // 5min
for i := 0; i < 200; i++ {
ttl := jitteredTTL()
assert.GreaterOrEqual(t, int64(ttl), int64(lowerBound),
"TTL 不应低于 %v实际得到 %v", lowerBound, ttl)
assert.LessOrEqual(t, int64(ttl), int64(upperBound),
"TTL 不应超过 %v上界不变保证实际得到 %v", upperBound, ttl)
}
}
func TestJitteredTTL_NeverExceedsBase(t *testing.T) {
// 关键安全性测试jitteredTTL 使用减法抖动,确保永远不超过 billingCacheTTL
for i := 0; i < 500; i++ {
ttl := jitteredTTL()
assert.LessOrEqual(t, int64(ttl), int64(billingCacheTTL),
"jitteredTTL 不应超过基础 TTL上界预期不被打破")
}
}
func TestJitteredTTL_HasVariance(t *testing.T) {
// 验证抖动确实产生了不同的值
results := make(map[time.Duration]bool)
for i := 0; i < 100; i++ {
ttl := jitteredTTL()
results[ttl] = true
}
require.Greater(t, len(results), 1,
"jitteredTTL 应产生不同的值(抖动生效),但 100 次调用结果全部相同")
}
func TestJitteredTTL_AverageNearCenter(t *testing.T) {
// 验证平均值大约在抖动范围中间
var sum time.Duration
runs := 1000
for i := 0; i < runs; i++ {
sum += jitteredTTL()
}
avg := sum / time.Duration(runs)
expectedCenter := billingCacheTTL - billingCacheJitter/2 // 4min45s
// 允许 ±5s 的误差
tolerance := 5 * time.Second
assert.InDelta(t, float64(expectedCenter), float64(avg), float64(tolerance),
"平均 TTL 应接近抖动范围中心 %v", expectedCenter)
}
func TestBillingKeyGeneration(t *testing.T) {
t.Run("balance_key", func(t *testing.T) {
key := billingBalanceKey(12345)
assert.Equal(t, "billing:balance:12345", key)
})
t.Run("sub_key", func(t *testing.T) {
key := billingSubKey(100, 200)
assert.Equal(t, "billing:sub:100:200", key)
})
}
func BenchmarkJitteredTTL(b *testing.B) {
for i := 0; i < b.N; i++ {
_ = jitteredTTL()
}
}