mirror of https://github.com/gofiber/fiber.git
637 lines
16 KiB
Go
637 lines
16 KiB
Go
// Special thanks to @codemicro for moving this to fiber core
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// Original middleware: github.com/codemicro/fiber-cache
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package cache
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import (
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"bytes"
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"fmt"
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"io"
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"math"
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"net/http"
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"net/http/httptest"
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"os"
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"strconv"
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"testing"
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"time"
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"github.com/gofiber/fiber/v3"
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"github.com/gofiber/fiber/v3/internal/storage/memory"
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"github.com/gofiber/utils"
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"github.com/stretchr/testify/require"
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"github.com/valyala/fasthttp"
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)
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func Test_Cache_CacheControl(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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CacheControl: true,
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Expiration: 10 * time.Second,
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}))
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app.Get("/", func(c fiber.Ctx) error {
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return c.SendString("Hello, World!")
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})
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_, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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resp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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require.Equal(t, "public, max-age=10", resp.Header.Get(fiber.HeaderCacheControl))
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}
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func Test_Cache_Expired(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{Expiration: 2 * time.Second}))
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app.Get("/", func(c fiber.Ctx) error {
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return c.SendString(fmt.Sprintf("%d", time.Now().UnixNano()))
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})
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resp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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body, err := io.ReadAll(resp.Body)
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require.NoError(t, err)
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// Sleep until the cache is expired
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time.Sleep(3 * time.Second)
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respCached, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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bodyCached, err := io.ReadAll(respCached.Body)
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require.NoError(t, err)
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if bytes.Equal(body, bodyCached) {
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t.Errorf("Cache should have expired: %s, %s", body, bodyCached)
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}
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// Next response should be also cached
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respCachedNextRound, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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bodyCachedNextRound, err := io.ReadAll(respCachedNextRound.Body)
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require.NoError(t, err)
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if !bytes.Equal(bodyCachedNextRound, bodyCached) {
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t.Errorf("Cache should not have expired: %s, %s", bodyCached, bodyCachedNextRound)
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}
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}
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func Test_Cache(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New())
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app.Get("/", func(c fiber.Ctx) error {
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now := fmt.Sprintf("%d", time.Now().UnixNano())
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return c.SendString(now)
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})
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req := httptest.NewRequest("GET", "/", nil)
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resp, err := app.Test(req)
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require.NoError(t, err)
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cachedReq := httptest.NewRequest("GET", "/", nil)
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cachedResp, err := app.Test(cachedReq)
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require.NoError(t, err)
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body, err := io.ReadAll(resp.Body)
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require.NoError(t, err)
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cachedBody, err := io.ReadAll(cachedResp.Body)
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require.NoError(t, err)
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require.Equal(t, cachedBody, body)
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}
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func Test_Cache_WithSeveralRequests(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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CacheControl: true,
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Expiration: 10 * time.Second,
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}))
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app.Get("/:id", func(c fiber.Ctx) error {
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return c.SendString(c.Params("id"))
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})
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for runs := 0; runs < 10; runs++ {
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for i := 0; i < 10; i++ {
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func(id int) {
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rsp, err := app.Test(httptest.NewRequest(http.MethodGet, fmt.Sprintf("/%d", id), nil))
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require.NoError(t, err)
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defer func(Body io.ReadCloser) {
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err := Body.Close()
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require.NoError(t, err)
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}(rsp.Body)
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idFromServ, err := io.ReadAll(rsp.Body)
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require.NoError(t, err)
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a, err := strconv.Atoi(string(idFromServ))
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require.NoError(t, err)
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// SomeTimes,The id is not equal with a
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require.Equal(t, id, a)
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}(i)
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}
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}
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}
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func Test_Cache_Invalid_Expiration(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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cache := New(Config{Expiration: 0 * time.Second})
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app.Use(cache)
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app.Get("/", func(c fiber.Ctx) error {
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now := fmt.Sprintf("%d", time.Now().UnixNano())
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return c.SendString(now)
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})
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req := httptest.NewRequest("GET", "/", nil)
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resp, err := app.Test(req)
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require.NoError(t, err)
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cachedReq := httptest.NewRequest("GET", "/", nil)
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cachedResp, err := app.Test(cachedReq)
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require.NoError(t, err)
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body, err := io.ReadAll(resp.Body)
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require.NoError(t, err)
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cachedBody, err := io.ReadAll(cachedResp.Body)
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require.NoError(t, err)
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require.Equal(t, cachedBody, body)
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}
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func Test_Cache_Invalid_Method(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New())
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app.Post("/", func(c fiber.Ctx) error {
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return c.SendString(c.Query("cache"))
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})
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app.Get("/get", func(c fiber.Ctx) error {
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return c.SendString(c.Query("cache"))
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})
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resp, err := app.Test(httptest.NewRequest("POST", "/?cache=123", nil))
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require.NoError(t, err)
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body, err := io.ReadAll(resp.Body)
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require.NoError(t, err)
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require.Equal(t, "123", string(body))
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resp, err = app.Test(httptest.NewRequest("POST", "/?cache=12345", nil))
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require.NoError(t, err)
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body, err = io.ReadAll(resp.Body)
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require.NoError(t, err)
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require.Equal(t, "12345", string(body))
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resp, err = app.Test(httptest.NewRequest("GET", "/get?cache=123", nil))
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require.NoError(t, err)
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body, err = io.ReadAll(resp.Body)
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require.NoError(t, err)
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require.Equal(t, "123", string(body))
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resp, err = app.Test(httptest.NewRequest("GET", "/get?cache=12345", nil))
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require.NoError(t, err)
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body, err = io.ReadAll(resp.Body)
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require.NoError(t, err)
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require.Equal(t, "123", string(body))
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}
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func Test_Cache_NothingToCache(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{Expiration: -(time.Second * 1)}))
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app.Get("/", func(c fiber.Ctx) error {
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return c.SendString(time.Now().String())
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})
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resp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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body, err := io.ReadAll(resp.Body)
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require.NoError(t, err)
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time.Sleep(500 * time.Millisecond)
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respCached, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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bodyCached, err := io.ReadAll(respCached.Body)
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require.NoError(t, err)
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if bytes.Equal(body, bodyCached) {
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t.Errorf("Cache should have expired: %s, %s", body, bodyCached)
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}
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}
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func Test_Cache_CustomNext(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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Next: func(c fiber.Ctx) bool {
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return c.Response().StatusCode() != fiber.StatusOK
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},
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CacheControl: true,
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}))
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app.Get("/", func(c fiber.Ctx) error {
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return c.SendString(time.Now().String())
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})
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app.Get("/error", func(c fiber.Ctx) error {
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return c.Status(fiber.StatusInternalServerError).SendString(time.Now().String())
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})
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resp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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body, err := io.ReadAll(resp.Body)
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require.NoError(t, err)
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respCached, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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bodyCached, err := io.ReadAll(respCached.Body)
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require.NoError(t, err)
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require.True(t, bytes.Equal(body, bodyCached))
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require.True(t, respCached.Header.Get(fiber.HeaderCacheControl) != "")
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_, err = app.Test(httptest.NewRequest("GET", "/error", nil))
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require.NoError(t, err)
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errRespCached, err := app.Test(httptest.NewRequest("GET", "/error", nil))
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require.NoError(t, err)
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require.True(t, errRespCached.Header.Get(fiber.HeaderCacheControl) == "")
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}
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func Test_CustomKey(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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var called bool
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app.Use(New(Config{KeyGenerator: func(c fiber.Ctx) string {
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called = true
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return utils.CopyString(c.Path())
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}}))
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app.Get("/", func(c fiber.Ctx) error {
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return c.SendString("hi")
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})
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req := httptest.NewRequest("GET", "/", nil)
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_, err := app.Test(req)
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require.NoError(t, err)
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require.True(t, called)
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}
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func Test_CustomExpiration(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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var called bool
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var newCacheTime int
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app.Use(New(Config{ExpirationGenerator: func(c fiber.Ctx, cfg *Config) time.Duration {
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called = true
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newCacheTime, _ = strconv.Atoi(c.GetRespHeader("Cache-Time", "600"))
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return time.Second * time.Duration(newCacheTime)
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}}))
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app.Get("/", func(c fiber.Ctx) error {
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c.Response().Header.Add("Cache-Time", "1")
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now := fmt.Sprintf("%d", time.Now().UnixNano())
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return c.SendString(now)
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})
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resp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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require.True(t, called)
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require.Equal(t, 1, newCacheTime)
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// Sleep until the cache is expired
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time.Sleep(1 * time.Second)
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cachedResp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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body, err := io.ReadAll(resp.Body)
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require.NoError(t, err)
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cachedBody, err := io.ReadAll(cachedResp.Body)
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require.NoError(t, err)
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if bytes.Equal(body, cachedBody) {
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t.Errorf("Cache should have expired: %s, %s", body, cachedBody)
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}
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// Next response should be cached
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cachedRespNextRound, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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cachedBodyNextRound, err := io.ReadAll(cachedRespNextRound.Body)
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require.NoError(t, err)
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if !bytes.Equal(cachedBodyNextRound, cachedBody) {
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t.Errorf("Cache should not have expired: %s, %s", cachedBodyNextRound, cachedBody)
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}
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}
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func Test_AdditionalE2EResponseHeaders(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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StoreResponseHeaders: true,
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}))
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app.Get("/", func(c fiber.Ctx) error {
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c.Response().Header.Add("X-Foobar", "foobar")
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return c.SendString("hi")
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})
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req := httptest.NewRequest("GET", "/", nil)
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resp, err := app.Test(req)
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require.NoError(t, err)
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require.Equal(t, "foobar", resp.Header.Get("X-Foobar"))
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req = httptest.NewRequest("GET", "/", nil)
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resp, err = app.Test(req)
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require.NoError(t, err)
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require.Equal(t, "foobar", resp.Header.Get("X-Foobar"))
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}
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func Test_CacheHeader(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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Expiration: 10 * time.Second,
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Next: func(c fiber.Ctx) bool {
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return c.Response().StatusCode() != fiber.StatusOK
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},
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}))
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app.Get("/", func(c fiber.Ctx) error {
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return c.SendString("Hello, World!")
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})
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app.Post("/", func(c fiber.Ctx) error {
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return c.SendString(c.Query("cache"))
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})
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app.Get("/error", func(c fiber.Ctx) error {
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return c.Status(fiber.StatusInternalServerError).SendString(time.Now().String())
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})
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resp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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require.Equal(t, cacheMiss, resp.Header.Get("X-Cache"))
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resp, err = app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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require.Equal(t, cacheHit, resp.Header.Get("X-Cache"))
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resp, err = app.Test(httptest.NewRequest("POST", "/?cache=12345", nil))
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require.NoError(t, err)
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require.Equal(t, cacheUnreachable, resp.Header.Get("X-Cache"))
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errRespCached, err := app.Test(httptest.NewRequest("GET", "/error", nil))
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require.NoError(t, err)
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require.Equal(t, cacheUnreachable, errRespCached.Header.Get("X-Cache"))
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}
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func Test_CustomCacheHeader(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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CacheHeader: "Cache-Status",
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}))
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app.Get("/", func(c fiber.Ctx) error {
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return c.SendString("Hello, World!")
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})
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resp, err := app.Test(httptest.NewRequest("GET", "/", nil))
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require.NoError(t, err)
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require.Equal(t, cacheMiss, resp.Header.Get("Cache-Status"))
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}
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// Because time points are updated once every X milliseconds, entries in tests can often have
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// equal expiration times and thus be in an random order. This closure hands out increasing
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// time intervals to maintain strong ascending order of expiration
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func stableAscendingExpiration() func(c1 fiber.Ctx, c2 *Config) time.Duration {
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i := 0
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return func(c1 fiber.Ctx, c2 *Config) time.Duration {
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i += 1
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return time.Hour * time.Duration(i)
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}
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}
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func Test_Cache_MaxBytesOrder(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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MaxBytes: 2,
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ExpirationGenerator: stableAscendingExpiration(),
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}))
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app.Get("/*", func(c fiber.Ctx) error {
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return c.SendString("1")
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})
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cases := [][]string{
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// Insert a, b into cache of size 2 bytes (responses are 1 byte)
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{"/a", cacheMiss},
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{"/b", cacheMiss},
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{"/a", cacheHit},
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{"/b", cacheHit},
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// Add c -> a evicted
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{"/c", cacheMiss},
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{"/b", cacheHit},
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// Add a again -> b evicted
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{"/a", cacheMiss},
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{"/c", cacheHit},
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// Add b -> c evicted
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{"/b", cacheMiss},
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{"/c", cacheMiss},
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}
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for idx, tcase := range cases {
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rsp, err := app.Test(httptest.NewRequest("GET", tcase[0], nil))
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require.NoError(t, err)
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require.Equal(t, tcase[1], rsp.Header.Get("X-Cache"), fmt.Sprintf("Case %v", idx))
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}
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}
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func Test_Cache_MaxBytesSizes(t *testing.T) {
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t.Parallel()
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app := fiber.New()
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app.Use(New(Config{
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MaxBytes: 7,
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ExpirationGenerator: stableAscendingExpiration(),
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}))
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app.Get("/*", func(c fiber.Ctx) error {
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path := c.Context().URI().LastPathSegment()
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size, _ := strconv.Atoi(string(path))
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return c.Send(make([]byte, size))
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})
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cases := [][]string{
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{"/1", cacheMiss},
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{"/2", cacheMiss},
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{"/3", cacheMiss},
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{"/4", cacheMiss}, // 1+2+3+4 > 7 => 1,2 are evicted now
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{"/3", cacheHit},
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{"/1", cacheMiss},
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{"/2", cacheMiss},
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{"/8", cacheUnreachable}, // too big to cache -> unreachable
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}
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for idx, tcase := range cases {
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rsp, err := app.Test(httptest.NewRequest("GET", tcase[0], nil))
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require.NoError(t, err)
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require.Equal(t, tcase[1], rsp.Header.Get("X-Cache"), fmt.Sprintf("Case %v", idx))
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}
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}
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|
|
|
// go test -v -run=^$ -bench=Benchmark_Cache -benchmem -count=4
|
|
func Benchmark_Cache(b *testing.B) {
|
|
app := fiber.New()
|
|
|
|
app.Use(New())
|
|
|
|
app.Get("/demo", func(c fiber.Ctx) error {
|
|
data, _ := os.ReadFile("../../.github/README.md")
|
|
return c.Status(fiber.StatusTeapot).Send(data)
|
|
})
|
|
|
|
h := app.Handler()
|
|
|
|
fctx := &fasthttp.RequestCtx{}
|
|
fctx.Request.Header.SetMethod("GET")
|
|
fctx.Request.SetRequestURI("/demo")
|
|
|
|
b.ReportAllocs()
|
|
b.ResetTimer()
|
|
|
|
for n := 0; n < b.N; n++ {
|
|
h(fctx)
|
|
}
|
|
|
|
require.Equal(b, fiber.StatusTeapot, fctx.Response.Header.StatusCode())
|
|
require.True(b, len(fctx.Response.Body()) > 30000)
|
|
}
|
|
|
|
// go test -v -run=^$ -bench=Benchmark_Cache_Storage -benchmem -count=4
|
|
func Benchmark_Cache_Storage(b *testing.B) {
|
|
app := fiber.New()
|
|
|
|
app.Use(New(Config{
|
|
Storage: memory.New(),
|
|
}))
|
|
|
|
app.Get("/demo", func(c fiber.Ctx) error {
|
|
data, _ := os.ReadFile("../../.github/README.md")
|
|
return c.Status(fiber.StatusTeapot).Send(data)
|
|
})
|
|
|
|
h := app.Handler()
|
|
|
|
fctx := &fasthttp.RequestCtx{}
|
|
fctx.Request.Header.SetMethod("GET")
|
|
fctx.Request.SetRequestURI("/demo")
|
|
|
|
b.ReportAllocs()
|
|
b.ResetTimer()
|
|
|
|
for n := 0; n < b.N; n++ {
|
|
h(fctx)
|
|
}
|
|
|
|
require.Equal(b, fiber.StatusTeapot, fctx.Response.Header.StatusCode())
|
|
require.True(b, len(fctx.Response.Body()) > 30000)
|
|
}
|
|
|
|
func Benchmark_Cache_AdditionalHeaders(b *testing.B) {
|
|
app := fiber.New()
|
|
app.Use(New(Config{
|
|
StoreResponseHeaders: true,
|
|
}))
|
|
|
|
app.Get("/demo", func(c fiber.Ctx) error {
|
|
c.Response().Header.Add("X-Foobar", "foobar")
|
|
return c.SendStatus(418)
|
|
})
|
|
|
|
h := app.Handler()
|
|
|
|
fctx := &fasthttp.RequestCtx{}
|
|
fctx.Request.Header.SetMethod("GET")
|
|
fctx.Request.SetRequestURI("/demo")
|
|
|
|
b.ReportAllocs()
|
|
b.ResetTimer()
|
|
|
|
for n := 0; n < b.N; n++ {
|
|
h(fctx)
|
|
}
|
|
|
|
require.Equal(b, fiber.StatusTeapot, fctx.Response.Header.StatusCode())
|
|
require.Equal(b, []byte("foobar"), fctx.Response.Header.Peek("X-Foobar"))
|
|
}
|
|
|
|
func Benchmark_Cache_MaxSize(b *testing.B) {
|
|
// The benchmark is run with three different MaxSize parameters
|
|
// 1) 0: Tracking is disabled = no overhead
|
|
// 2) MaxInt32: Enough to store all entries = no removals
|
|
// 3) 100: Small size = constant insertions and removals
|
|
cases := []uint{0, math.MaxUint32, 100}
|
|
names := []string{"Disabled", "Unlim", "LowBounded"}
|
|
for i, size := range cases {
|
|
b.Run(names[i], func(b *testing.B) {
|
|
app := fiber.New()
|
|
app.Use(New(Config{MaxBytes: size}))
|
|
|
|
app.Get("/*", func(c fiber.Ctx) error {
|
|
return c.Status(fiber.StatusTeapot).SendString("1")
|
|
})
|
|
|
|
h := app.Handler()
|
|
fctx := &fasthttp.RequestCtx{}
|
|
fctx.Request.Header.SetMethod("GET")
|
|
|
|
b.ReportAllocs()
|
|
b.ResetTimer()
|
|
|
|
for n := 0; n < b.N; n++ {
|
|
fctx.Request.SetRequestURI(fmt.Sprintf("/%v", n))
|
|
h(fctx)
|
|
}
|
|
|
|
require.Equal(b, fiber.StatusTeapot, fctx.Response.Header.StatusCode())
|
|
})
|
|
}
|
|
}
|