lolly/internal/cache/cache_test.go
xfy fc71cf4835 refactor(test): 统一测试文件错误处理风格
使用空白标识符忽略测试辅助函数中 Close、ReadFrom、Set 等返回值,
与主代码风格保持一致。

Co-Authored-By: Claude <noreply@anthropic.com>
2026-04-03 17:37:05 +08:00

348 lines
7.8 KiB
Go

package cache
import (
"testing"
"time"
)
func TestNewFileCache(t *testing.T) {
fc := NewFileCache(100, 1024*1024, 30*time.Second)
if fc == nil {
t.Error("Expected non-nil FileCache")
}
}
func TestFileCacheSetGet(t *testing.T) {
fc := NewFileCache(10, 1024, 1*time.Hour)
path := "/test/file.txt"
data := []byte("Hello, World!")
err := fc.Set(path, data, int64(len(data)), time.Now())
if err != nil {
t.Errorf("Set() error: %v", err)
}
entry, ok := fc.Get(path)
if !ok {
t.Error("Expected to find cached entry")
}
if string(entry.Data) != "Hello, World!" {
t.Errorf("Expected data 'Hello, World!', got %s", entry.Data)
}
}
func TestFileCacheDelete(t *testing.T) {
fc := NewFileCache(10, 1024, 1*time.Hour)
_ = fc.Set("/test.txt", []byte("data"), 4, time.Now())
fc.Delete("/test.txt")
_, ok := fc.Get("/test.txt")
if ok {
t.Error("Expected entry to be deleted")
}
}
func TestFileCacheLRUEviction(t *testing.T) {
// 最大 3 个条目
fc := NewFileCache(3, 0, 1*time.Hour)
_ = fc.Set("/a", []byte("a"), 1, time.Now())
_ = fc.Set("/b", []byte("b"), 1, time.Now())
_ = fc.Set("/c", []byte("c"), 1, time.Now())
// 再添加一个,应该淘汰 /a
_ = fc.Set("/d", []byte("d"), 1, time.Now())
_, ok := fc.Get("/a")
if ok {
t.Error("Expected /a to be evicted")
}
// b, c, d 应该还在
for _, path := range []string{"b", "c", "d"} {
_, ok := fc.Get("/" + path)
if !ok {
t.Errorf("Expected /%s to exist", path)
}
}
}
func TestFileCacheSizeEviction(t *testing.T) {
// 最大 10 字节
fc := NewFileCache(0, 10, 1*time.Hour)
_ = fc.Set("/a", []byte("12345"), 5, time.Now())
_ = fc.Set("/b", []byte("12345"), 5, time.Now())
// 再添加 6 字节,应该淘汰一个
_ = fc.Set("/c", []byte("123456"), 6, time.Now())
stats := fc.Stats()
if stats.Size > 10 {
t.Errorf("Expected size <= 10, got %d", stats.Size)
}
}
func TestFileCacheInactiveEviction(t *testing.T) {
fc := NewFileCache(10, 1024, 100*time.Millisecond)
_ = fc.Set("/test", []byte("data"), 4, time.Now())
// 立即获取应该成功
_, ok := fc.Get("/test")
if !ok {
t.Error("Expected entry to exist")
}
// 等待过期
time.Sleep(150 * time.Millisecond)
// 再次获取应该失败(因过期被删除)
_, ok = fc.Get("/test")
if ok {
t.Error("Expected entry to be expired")
}
}
func TestFileCacheClear(t *testing.T) {
fc := NewFileCache(10, 1024, 1*time.Hour)
_ = fc.Set("/a", []byte("a"), 1, time.Now())
_ = fc.Set("/b", []byte("b"), 1, time.Now())
fc.Clear()
stats := fc.Stats()
if stats.Entries != 0 {
t.Errorf("Expected 0 entries after clear, got %d", stats.Entries)
}
}
func TestFileCacheStats(t *testing.T) {
fc := NewFileCache(100, 1024, 1*time.Hour)
_ = fc.Set("/a", []byte("12345"), 5, time.Now())
_ = fc.Set("/b", []byte("12345"), 5, time.Now())
stats := fc.Stats()
if stats.Entries != 2 {
t.Errorf("Expected 2 entries, got %d", stats.Entries)
}
if stats.Size != 10 {
t.Errorf("Expected size 10, got %d", stats.Size)
}
}
func TestNewProxyCache(t *testing.T) {
rules := []ProxyCacheRule{
{Path: "/api/", Methods: []string{"GET"}, MaxAge: 10 * time.Minute},
}
pc := NewProxyCache(rules, true, 60*time.Second)
if pc == nil {
t.Error("Expected non-nil ProxyCache")
}
}
func TestProxyCacheSetGet(t *testing.T) {
pc := NewProxyCache(nil, false, 0)
key := "test-key"
data := []byte("response body")
headers := map[string]string{"Content-Type": "application/json"}
pc.Set(key, data, headers, 200, 10*time.Minute)
entry, ok, stale := pc.Get(key)
if !ok {
t.Error("Expected to find cached entry")
}
if stale {
t.Error("Expected entry to be fresh")
}
if string(entry.Data) != "response body" {
t.Errorf("Expected data 'response body', got %s", entry.Data)
}
if entry.Status != 200 {
t.Errorf("Expected status 200, got %d", entry.Status)
}
}
func TestProxyCacheExpiration(t *testing.T) {
pc := NewProxyCache(nil, false, 0)
key := "expire-test"
pc.Set(key, []byte("data"), nil, 200, 100*time.Millisecond)
// 立即获取应该成功
_, ok, _ := pc.Get(key)
if !ok {
t.Error("Expected entry to exist")
}
// 等待过期
time.Sleep(150 * time.Millisecond)
_, ok, _ = pc.Get(key)
if ok {
t.Error("Expected entry to be expired")
}
}
func TestProxyCacheStaleWhileRevalidate(t *testing.T) {
pc := NewProxyCache(nil, false, 200*time.Millisecond)
key := "stale-test"
pc.Set(key, []byte("data"), nil, 200, 100*time.Millisecond)
// 等待过期但仍在 stale 时间内
time.Sleep(150 * time.Millisecond)
entry, ok, stale := pc.Get(key)
if !ok {
t.Error("Expected stale entry to be usable")
}
if !stale {
t.Error("Expected entry to be marked as stale")
}
if entry == nil {
t.Error("Expected stale entry data")
}
}
func TestProxyCacheLock(t *testing.T) {
pc := NewProxyCache(nil, true, 0)
key := "lock-test"
// 获取锁
ch := pc.AcquireLock(key)
if ch != nil {
t.Error("Expected to acquire lock (nil chan)")
}
// 第二次获取应该返回等待 chan
ch2 := pc.AcquireLock(key)
if ch2 == nil {
t.Error("Expected waiting chan when lock is held")
}
// 设置缓存并释放锁
pc.Set(key, []byte("data"), nil, 200, 10*time.Minute)
// 现在应该能获取缓存
_, ok, _ := pc.Get(key)
if !ok {
t.Error("Expected cache entry after lock release")
}
}
func TestProxyCacheMatchRule(t *testing.T) {
rules := []ProxyCacheRule{
{Path: "/api/", Methods: []string{"GET"}, Statuses: []int{200}, MaxAge: 10 * time.Minute},
{Path: "/static/*", Methods: []string{"GET"}, MaxAge: 1 * time.Hour},
}
pc := NewProxyCache(rules, false, 0)
tests := []struct {
path string
method string
status int
want bool
}{
{"api/users", "GET", 200, true},
{"api/users", "POST", 200, false}, // POST 不在 Methods
{"api/users", "GET", 404, false}, // 404 不在 Statuses
{"static/css/style.css", "GET", 200, true},
{"other/path", "GET", 200, false}, // 不匹配任何规则
}
for _, tt := range tests {
t.Run(tt.path, func(t *testing.T) {
// 添加前缀 / 到 path
fullPath := "/" + tt.path
rule := pc.MatchRule(fullPath, tt.method, tt.status)
if (rule != nil) != tt.want {
t.Errorf("MatchRule(%s, %s, %d) want %v", fullPath, tt.method, tt.status, tt.want)
}
})
}
}
func TestProxyCacheDelete(t *testing.T) {
pc := NewProxyCache(nil, false, 0)
pc.Set("key1", []byte("data"), nil, 200, 10*time.Minute)
pc.Delete("key1")
_, ok, _ := pc.Get("key1")
if ok {
t.Error("Expected entry to be deleted")
}
}
func TestProxyCacheClear(t *testing.T) {
pc := NewProxyCache(nil, false, 0)
pc.Set("a", []byte("a"), nil, 200, 10*time.Minute)
pc.Set("b", []byte("b"), nil, 200, 10*time.Minute)
pc.Clear()
stats := pc.Stats()
if stats.Entries != 0 {
t.Errorf("Expected 0 entries, got %d", stats.Entries)
}
}
func TestPathMatch(t *testing.T) {
tests := []struct {
pattern string
path string
want bool
}{
{"*", "/anything", true},
{"api/*", "/api/users", true},
{"api/*", "/api/", true},
{"api/*", "/other", false},
{"/exact", "/exact", true},
{"/exact", "/exact/other", false},
}
for _, tt := range tests {
t.Run(tt.pattern+"_"+tt.path, func(t *testing.T) {
// 添加前缀 / 如果 pattern 没有
pattern := tt.pattern
if pattern[0] != '/' && pattern != "*" {
pattern = "/" + pattern
}
result := pathMatch(pattern, tt.path)
if result != tt.want {
t.Errorf("pathMatch(%s, %s) = %v, want %v", pattern, tt.path, result, tt.want)
}
})
}
}
func TestContains(t *testing.T) {
if !contains([]string{"GET", "POST"}, "GET") {
t.Error("Expected to find GET")
}
if contains([]string{"GET", "POST"}, "DELETE") {
t.Error("Expected not to find DELETE")
}
}
func TestContainsInt(t *testing.T) {
if !containsInt([]int{200, 301, 302}, 200) {
t.Error("Expected to find 200")
}
if containsInt([]int{200, 301, 302}, 404) {
t.Error("Expected not to find 404")
}
}