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sessions_test.go
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sessions_test.go
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// Copyright 2012 The Gorilla Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sessions
import (
"bytes"
"encoding/gob"
"net/http"
"testing"
)
// ----------------------------------------------------------------------------
// ResponseRecorder
// ----------------------------------------------------------------------------
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// ResponseRecorder is an implementation of http.ResponseWriter that
// records its mutations for later inspection in tests.
type ResponseRecorder struct {
Code int // the HTTP response code from WriteHeader
HeaderMap http.Header // the HTTP response headers
Body *bytes.Buffer // if non-nil, the bytes.Buffer to append written data to
Flushed bool
}
// NewRecorder returns an initialized ResponseRecorder.
func NewRecorder() *ResponseRecorder {
return &ResponseRecorder{
HeaderMap: make(http.Header),
Body: new(bytes.Buffer),
}
}
// DefaultRemoteAddr is the default remote address to return in RemoteAddr if
// an explicit DefaultRemoteAddr isn't set on ResponseRecorder.
const DefaultRemoteAddr = "1.2.3.4"
// Header returns the response headers.
func (rw *ResponseRecorder) Header() http.Header {
return rw.HeaderMap
}
// Write always succeeds and writes to rw.Body, if not nil.
func (rw *ResponseRecorder) Write(buf []byte) (int, error) {
if rw.Body != nil {
rw.Body.Write(buf)
}
if rw.Code == 0 {
rw.Code = http.StatusOK
}
return len(buf), nil
}
// WriteHeader sets rw.Code.
func (rw *ResponseRecorder) WriteHeader(code int) {
rw.Code = code
}
// Flush sets rw.Flushed to true.
func (rw *ResponseRecorder) Flush() {
rw.Flushed = true
}
// ----------------------------------------------------------------------------
type FlashMessage struct {
Type int
Message string
}
func TestFlashes(t *testing.T) {
var req *http.Request
var rsp *ResponseRecorder
var hdr http.Header
var err error
var ok bool
var cookies []string
var session *Session
var flashes []interface{}
store := NewCookieStore([]byte("secret-key"))
// Round 1 ----------------------------------------------------------------
req, _ = http.NewRequest("GET", "http://localhost:8080/", nil)
rsp = NewRecorder()
// Get a session.
if session, err = store.Get(req, "session-key"); err != nil {
t.Fatalf("Error getting session: %v", err)
}
// Get a flash.
flashes = session.Flashes()
if len(flashes) != 0 {
t.Errorf("Expected empty flashes; Got %v", flashes)
}
// Add some flashes.
session.AddFlash("foo")
session.AddFlash("bar")
// Custom key.
session.AddFlash("baz", "custom_key")
// Save.
if err = Save(req, rsp); err != nil {
t.Fatalf("Error saving session: %v", err)
}
hdr = rsp.Header()
cookies, ok = hdr["Set-Cookie"]
if !ok || len(cookies) != 1 {
t.Fatal("No cookies. Header:", hdr)
}
// Round 2 ----------------------------------------------------------------
req, _ = http.NewRequest("GET", "http://localhost:8080/", nil)
req.Header.Add("Cookie", cookies[0])
rsp = NewRecorder()
// Get a session.
if session, err = store.Get(req, "session-key"); err != nil {
t.Fatalf("Error getting session: %v", err)
}
// Check all saved values.
flashes = session.Flashes()
if len(flashes) != 2 {
t.Fatalf("Expected flashes; Got %v", flashes)
}
if flashes[0] != "foo" || flashes[1] != "bar" {
t.Errorf("Expected foo,bar; Got %v", flashes)
}
flashes = session.Flashes()
if len(flashes) != 0 {
t.Errorf("Expected dumped flashes; Got %v", flashes)
}
// Custom key.
flashes = session.Flashes("custom_key")
if len(flashes) != 1 {
t.Errorf("Expected flashes; Got %v", flashes)
} else if flashes[0] != "baz" {
t.Errorf("Expected baz; Got %v", flashes)
}
flashes = session.Flashes("custom_key")
if len(flashes) != 0 {
t.Errorf("Expected dumped flashes; Got %v", flashes)
}
// Round 3 ----------------------------------------------------------------
// Custom type
req, _ = http.NewRequest("GET", "http://localhost:8080/", nil)
rsp = NewRecorder()
// Get a session.
if session, err = store.Get(req, "session-key"); err != nil {
t.Fatalf("Error getting session: %v", err)
}
// Get a flash.
flashes = session.Flashes()
if len(flashes) != 0 {
t.Errorf("Expected empty flashes; Got %v", flashes)
}
// Add some flashes.
session.AddFlash(&FlashMessage{42, "foo"})
// Save.
if err = Save(req, rsp); err != nil {
t.Fatalf("Error saving session: %v", err)
}
hdr = rsp.Header()
cookies, ok = hdr["Set-Cookie"]
if !ok || len(cookies) != 1 {
t.Fatal("No cookies. Header:", hdr)
}
// Round 4 ----------------------------------------------------------------
// Custom type
req, _ = http.NewRequest("GET", "http://localhost:8080/", nil)
req.Header.Add("Cookie", cookies[0])
rsp = NewRecorder()
// Get a session.
if session, err = store.Get(req, "session-key"); err != nil {
t.Fatalf("Error getting session: %v", err)
}
// Check all saved values.
flashes = session.Flashes()
if len(flashes) != 1 {
t.Fatalf("Expected flashes; Got %v", flashes)
}
custom := flashes[0].(FlashMessage)
if custom.Type != 42 || custom.Message != "foo" {
t.Errorf("Expected %#v, got %#v", FlashMessage{42, "foo"}, custom)
}
}
func init() {
gob.Register(FlashMessage{})
}