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// Copyright 2013 Martini Authors
// Copyright 2014 The Macaron Authors
//
// 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 macaron
import (
"bufio"
"io"
"net"
"net/http"
"net/http/httptest"
"testing"
"time"
. "github.com/smartystreets/goconvey/convey"
)
type closeNotifyingRecorder struct {
*httptest.ResponseRecorder
closed chan bool
}
func newCloseNotifyingRecorder() *closeNotifyingRecorder {
return &closeNotifyingRecorder{
httptest.NewRecorder(),
make(chan bool, 1),
}
}
func (c *closeNotifyingRecorder) close() {
c.closed <- true
}
func (c *closeNotifyingRecorder) CloseNotify() <-chan bool {
return c.closed
}
type hijackableResponse struct {
Hijacked bool
}
func newHijackableResponse() *hijackableResponse {
return &hijackableResponse{}
}
func (h *hijackableResponse) Header() http.Header { return nil }
func (h *hijackableResponse) Write(buf []byte) (int, error) { return 0, nil }
func (h *hijackableResponse) WriteHeader(code int) {}
func (h *hijackableResponse) Flush() {}
func (h *hijackableResponse) Hijack() (net.Conn, *bufio.ReadWriter, error) {
h.Hijacked = true
return nil, nil, nil
}
func Test_ResponseWriter(t *testing.T) {
Convey("Write string to response writer", t, func() {
resp := httptest.NewRecorder()
rw := NewResponseWriter(resp)
rw.Write([]byte("Hello world"))
So(resp.Code, ShouldEqual, rw.Status())
So(resp.Body.String(), ShouldEqual, "Hello world")
So(rw.Status(), ShouldEqual, http.StatusOK)
So(rw.Size(), ShouldEqual, 11)
So(rw.Written(), ShouldBeTrue)
})
Convey("Write strings to response writer", t, func() {
resp := httptest.NewRecorder()
rw := NewResponseWriter(resp)
rw.Write([]byte("Hello world"))
rw.Write([]byte("foo bar bat baz"))
So(resp.Code, ShouldEqual, rw.Status())
So(resp.Body.String(), ShouldEqual, "Hello worldfoo bar bat baz")
So(rw.Status(), ShouldEqual, http.StatusOK)
So(rw.Size(), ShouldEqual, 26)
So(rw.Written(), ShouldBeTrue)
})
Convey("Write header to response writer", t, func() {
resp := httptest.NewRecorder()
rw := NewResponseWriter(resp)
rw.WriteHeader(http.StatusNotFound)
So(resp.Code, ShouldEqual, rw.Status())
So(resp.Body.String(), ShouldBeBlank)
So(rw.Status(), ShouldEqual, http.StatusNotFound)
So(rw.Size(), ShouldEqual, 0)
})
Convey("Write before response write", t, func() {
result := ""
resp := httptest.NewRecorder()
rw := NewResponseWriter(resp)
rw.Before(func(ResponseWriter) {
result += "foo"
})
rw.Before(func(ResponseWriter) {
result += "bar"
})
rw.WriteHeader(http.StatusNotFound)
So(resp.Code, ShouldEqual, rw.Status())
So(resp.Body.String(), ShouldBeBlank)
So(rw.Status(), ShouldEqual, http.StatusNotFound)
So(rw.Size(), ShouldEqual, 0)
So(result, ShouldEqual, "barfoo")
})
Convey("Response writer with Hijack", t, func() {
hijackable := newHijackableResponse()
rw := NewResponseWriter(hijackable)
hijacker, ok := rw.(http.Hijacker)
So(ok, ShouldBeTrue)
_, _, err := hijacker.Hijack()
So(err, ShouldBeNil)
So(hijackable.Hijacked, ShouldBeTrue)
})
Convey("Response writer with bad Hijack", t, func() {
hijackable := new(http.ResponseWriter)
rw := NewResponseWriter(*hijackable)
hijacker, ok := rw.(http.Hijacker)
So(ok, ShouldBeTrue)
_, _, err := hijacker.Hijack()
So(err, ShouldNotBeNil)
})
Convey("Response writer with close notify", t, func() {
resp := newCloseNotifyingRecorder()
rw := NewResponseWriter(resp)
closed := false
notifier := rw.(http.CloseNotifier).CloseNotify()
resp.close()
select {
case <-notifier:
closed = true
case <-time.After(time.Second):
}
So(closed, ShouldBeTrue)
})
Convey("Response writer with flusher", t, func() {
resp := httptest.NewRecorder()
rw := NewResponseWriter(resp)
_, ok := rw.(http.Flusher)
So(ok, ShouldBeTrue)
})
Convey("Response writer with flusher handler", t, func() {
m := Classic()
m.Get("/events", func(w http.ResponseWriter, r *http.Request) {
f, ok := w.(http.Flusher)
So(ok, ShouldBeTrue)
w.Header().Set("Content-Type", "text/event-stream")
w.Header().Set("Cache-Control", "no-cache")
w.Header().Set("Connection", "keep-alive")
for i := 0; i < 2; i++ {
time.Sleep(10 * time.Millisecond)
io.WriteString(w, "data: Hello\n\n")
f.Flush()
}
})
resp := httptest.NewRecorder()
req, err := http.NewRequest("GET", "/events", nil)
So(err, ShouldBeNil)
m.ServeHTTP(resp, req)
So(resp.Code, ShouldEqual, http.StatusOK)
So(resp.Body.String(), ShouldEqual, "data: Hello\n\ndata: Hello\n\n")
})
}
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