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cache_test.go
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cache_test.go
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package cache
import (
"fmt"
"io"
"net/http"
"net/http/httptest"
"strings"
"testing"
"time"
"github.com/coocood/freecache"
"github.com/labstack/echo/v4"
"github.com/stretchr/testify/assert"
)
func TestCache(t *testing.T) {
client := getCachedServer(t, nil)
defer client.Close()
resp, err := http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL + "/foo")
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
resp, err = http.Get(client.URL + "/?foo=42&bar=84")
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_3")
}
func TestCache_ConfigTTL(t *testing.T) {
client := getCachedServer(t, &Config{TTL: time.Second})
defer client.Close()
resp, err := http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
time.Sleep(time.Millisecond * 1001)
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
}
func TestCache_ConfigRefresh(t *testing.T) {
var i int
client := getCachedServer(t, &Config{Refresh: func(r *http.Request) bool {
i++
return i == 2
}})
defer client.Close()
resp, err := http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
}
func TestCache_ConfigCache(t *testing.T) {
var i int
client := getCachedServer(t, &Config{Cache: func(r *http.Request) bool {
i++
return i != 1
}})
defer client.Close()
resp, err := http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
}
func TestCache_ConfigIgnoreQuery(t *testing.T) {
client := getCachedServer(t, &Config{IgnoreQuery: true})
defer client.Close()
resp, err := http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL + "/?foo=42&bar=84")
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
}
func TestCache_Methods(t *testing.T) {
client := getCachedServer(t, &Config{Methods: []string{"GET", "POST"}})
defer client.Close()
resp, err := http.Post(client.URL, "", strings.NewReader("foo"))
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
r, _ := http.NewRequest("PUT", client.URL, nil)
resp, err = http.DefaultClient.Do(r)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_3")
resp, err = http.DefaultClient.Do(r)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_4")
}
func TestCache_StatusCode(t *testing.T) {
client := getCachedServerWithCode(t, &Config{StatusCode: []int{200, 404}}, http.StatusInternalServerError)
defer client.Close()
resp, err := http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_1")
resp, err = http.Get(client.URL)
assert.NoError(t, err)
assertRequest(t, resp, http.StatusOK, "test_2")
}
func getCachedServer(t *testing.T, cfg *Config) *httptest.Server {
return getCachedServerWithCode(t, cfg, http.StatusOK)
}
func getCachedServerWithCode(t *testing.T, cfg *Config, status int) *httptest.Server {
e := echo.New()
var i int
h := New(cfg, freecache.NewCache(42*1024*1024))(func(c echo.Context) error {
i++
return c.String(status, fmt.Sprintf("test_%d", i))
})
return httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
c := e.NewContext(r, w)
assert.NoError(t, h(c))
}))
}
func assertRequest(t *testing.T, resp *http.Response, status int, content string) {
if status != http.StatusOK {
return
}
b, err := io.ReadAll(resp.Body)
assert.NoError(t, err)
assert.Equal(t, content, string(b))
resp.Body.Close()
}