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// Copyright 2011 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.
// The httptest package provides utilities for HTTP testing.
package httptest
import (
"bytes"
"http"
"os"
)
// 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
Header http.Header // if non-nil, the headers to populate
Body *bytes.Buffer // if non-nil, the bytes.Buffer to append written data to
Flushed bool
FakeRemoteAddr string // the fake RemoteAddr to return, or "" for DefaultRemoteAddr
FakeUsingTLS bool // whether to return true from the UsingTLS method
}
// NewRecorder returns an initialized ResponseRecorder.
func NewRecorder() *ResponseRecorder {
return &ResponseRecorder{
Header: http.Header(make(map[string][]string)),
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"
// RemoteAddr returns the value of rw.FakeRemoteAddr, if set, else
// returns DefaultRemoteAddr.
func (rw *ResponseRecorder) RemoteAddr() string {
if rw.FakeRemoteAddr != "" {
return rw.FakeRemoteAddr
}
return DefaultRemoteAddr
}
// UsingTLS returns the fake value in rw.FakeUsingTLS
func (rw *ResponseRecorder) UsingTLS() bool {
return rw.FakeUsingTLS
}
// SetHeader populates rw.Header, if non-nil.
func (rw *ResponseRecorder) SetHeader(k, v string) {
if rw.Header != nil {
if v == "" {
rw.Header.Del(k)
} else {
rw.Header.Set(k, v)
}
}
}
// Write always succeeds and writes to rw.Body, if not nil.
func (rw *ResponseRecorder) Write(buf []byte) (int, os.Error) {
if rw.Body != nil {
rw.Body.Write(buf)
}
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
}
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