Update deps, include cachecontrol

vendor/github.com/pquerna/cachecontrol/api_test.go

@@ -0,0 +1,111 @@
+/**
+ *  Copyright 2015 Paul Querna
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ */
+
+package cachecontrol
+
+import (
+	"github.com/pquerna/cachecontrol/cacheobject"
+	"github.com/stretchr/testify/require"
+
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+)
+
+func roundTrip(t *testing.T, fnc func(w http.ResponseWriter, r *http.Request)) (*http.Request, *http.Response) {
+	ts := httptest.NewServer(http.HandlerFunc(fnc))
+	defer ts.Close()
+
+	req, err := http.NewRequest("GET", ts.URL, nil)
+	require.NoError(t, err)
+
+	res, err := http.DefaultClient.Do(req)
+	require.NoError(t, err)
+
+	_, err = ioutil.ReadAll(res.Body)
+	res.Body.Close()
+	require.NoError(t, err)
+	return req, res
+}
+
+func TestCachableResponsePublic(t *testing.T) {
+	req, res := roundTrip(t, func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.Header().Set("Cache-Control", "public")
+		w.Header().Set("Last-Modified",
+			time.Now().UTC().Add(time.Duration(time.Hour*-5)).Format(http.TimeFormat))
+		fmt.Fprintln(w, `{}`)
+	})
+
+	opts := Options{}
+	reasons, expires, err := CachableResponse(req, res, opts)
+	require.NoError(t, err)
+	require.Len(t, reasons, 0)
+	require.WithinDuration(t,
+		time.Now().UTC().Add(time.Duration(float64(time.Hour)*0.5)),
+		expires,
+		10*time.Second)
+}
+
+func TestCachableResponsePrivate(t *testing.T) {
+	req, res := roundTrip(t, func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.Header().Set("Cache-Control", "private")
+		fmt.Fprintln(w, `{}`)
+	})
+
+	opts := Options{}
+	reasons, expires, err := CachableResponse(req, res, opts)
+	require.NoError(t, err)
+	require.Len(t, reasons, 1)
+	require.Equal(t, reasons[0], cacheobject.ReasonResponsePrivate)
+	require.Equal(t, time.Time{}, expires)
+
+	opts.PrivateCache = true
+	reasons, expires, err = CachableResponse(req, res, opts)
+	require.NoError(t, err)
+	require.Len(t, reasons, 0)
+	require.Equal(t, time.Time{}, expires)
+}
+
+func TestResponseWriter(t *testing.T) {
+	var resp http.ResponseWriter
+	var req *http.Request
+	_, _ = roundTrip(t, func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		w.Header().Set("Cache-Control", "private")
+		fmt.Fprintln(w, `{}`)
+		resp = w
+		req = r
+	})
+
+	opts := Options{}
+	reasons, expires, err := CachableResponseWriter(req, 200, resp, opts)
+	require.NoError(t, err)
+	require.Len(t, reasons, 1)
+	require.Equal(t, reasons[0], cacheobject.ReasonResponsePrivate)
+	require.Equal(t, time.Time{}, expires)
+
+	opts.PrivateCache = true
+	reasons, expires, err = CachableResponseWriter(req, 200, resp, opts)
+	require.NoError(t, err)
+	require.Len(t, reasons, 0)
+	require.Equal(t, time.Time{}, expires)
+}