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package httputils
import (
"bufio"
"bytes"
"errors"
"io"
"net"
"net/http"
"net/http/httptest"
"testing"
)
// CustomResponseWriter for testing http.Hijacker and http.Pusher.
type CustomResponseWriter struct {
*httptest.ResponseRecorder
}
func (c *CustomResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
return nil, nil, errors.New("hijack not supported in tests")
}
func (c *CustomResponseWriter) Push(string, *http.PushOptions) error {
return nil
}
func (c *CustomResponseWriter) Flush() {
c.ResponseRecorder.Flush()
}
func (c *CustomResponseWriter) ReadFrom(r io.Reader) (n int64, err error) {
buf := new(bytes.Buffer)
n, err = buf.ReadFrom(r)
if err == nil {
_, err = buf.WriteTo(c.ResponseRecorder)
}
return
}
func TestHttpFancyWriterRemembersWroteHeaderWhenFlushed(t *testing.T) {
f := &httpFancyWriter{basicWriter: basicWriter{ResponseWriter: httptest.NewRecorder()}}
f.Flush()
if !f.wroteHeader {
t.Fatal("want Flush to have set wroteHeader=true")
}
}
func TestHttp2FancyWriterRemembersWroteHeaderWhenFlushed(t *testing.T) {
f := &http2FancyWriter{basicWriter{ResponseWriter: httptest.NewRecorder()}}
f.Flush()
if !f.wroteHeader {
t.Fatal("want Flush to have set wroteHeader=true")
}
}
func TestBytesWritten(t *testing.T) {
rec := httptest.NewRecorder()
bw := &basicWriter{ResponseWriter: rec}
body := []byte("Hello, BytesWritten!")
_, err := bw.Write(body)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if bw.BytesWritten() != len(body) {
t.Fatalf("expected %v bytes written, got %v", len(body), bw.BytesWritten())
}
}
func TestUnwrap(t *testing.T) {
rec := httptest.NewRecorder()
bw := &basicWriter{ResponseWriter: rec}
if bw.Unwrap() != rec {
t.Fatal("expected Unwrap to return the original ResponseWriter")
}
}
func TestNewWrapResponseWriter(t *testing.T) {
rec := httptest.NewRecorder()
// HTTP/1.1 request
w1 := NewWrapResponseWriter(rec, 1)
if _, ok := w1.(*flushWriter); !ok {
t.Fatalf("expected flushWriter, got %T", w1)
}
// HTTP/2 request
customRec := &CustomResponseWriter{httptest.NewRecorder()}
w2 := NewWrapResponseWriter(customRec, 2)
if _, ok := w2.(*http2FancyWriter); !ok {
t.Fatalf("expected http2FancyWriter, got %T", w2)
}
}
func TestBasicWriterWriteHeader(t *testing.T) {
rec := httptest.NewRecorder()
bw := &basicWriter{ResponseWriter: rec}
bw.WriteHeader(http.StatusCreated)
if rec.Code != http.StatusCreated {
t.Fatalf("expected status code %v, got %v", http.StatusCreated, rec.Code)
}
}
func TestBasicWriterWrite(t *testing.T) {
rec := httptest.NewRecorder()
bw := &basicWriter{ResponseWriter: rec}
body := []byte("Hello, World!")
n, err := bw.Write(body)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if n != len(body) {
t.Fatalf("expected %v bytes written, got %v", len(body), n)
}
if rec.Body.String() != string(body) {
t.Fatalf("expected body %v, got %v", string(body), rec.Body.String())
}
if bw.bytes != len(body) {
t.Fatalf("expected %v bytes written in struct, got %v", len(body), bw.bytes)
}
}
func TestBasicWriterTee(t *testing.T) {
rec := httptest.NewRecorder()
var buf bytes.Buffer
bw := &basicWriter{ResponseWriter: rec}
bw.Tee(&buf)
body := []byte("Hello, Tee!")
_, err := bw.Write(body)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if buf.String() != string(body) {
t.Fatalf("expected tee body %v, got %v", string(body), buf.String())
}
}
func TestFlushWriterFlush(t *testing.T) {
rec := httptest.NewRecorder()
fw := &flushWriter{basicWriter{ResponseWriter: rec}}
fw.Flush()
if !fw.wroteHeader {
t.Fatal("want Flush to have set wroteHeader=true")
}
}
func TestHttpFancyWriterHijack(t *testing.T) {
rec := &CustomResponseWriter{httptest.NewRecorder()}
f := &httpFancyWriter{basicWriter: basicWriter{ResponseWriter: rec}}
_, _, err := f.Hijack()
if err == nil {
t.Fatal("expected error, got nil")
}
}
func TestHttpFancyWriterReadFrom(t *testing.T) {
rec := &CustomResponseWriter{httptest.NewRecorder()}
f := &httpFancyWriter{basicWriter: basicWriter{ResponseWriter: rec}}
body := []byte("Hello, ReadFrom!")
r := bytes.NewReader(body)
n, err := f.ReadFrom(r)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
if int(n) != len(body) {
t.Fatalf("expected %v bytes read, got %v", len(body), n)
}
if rec.Body.String() != string(body) {
t.Fatalf("expected body %v, got %v", string(body), rec.Body.String())
}
}
func TestHttp2FancyWriterPush(t *testing.T) {
rec := &CustomResponseWriter{httptest.NewRecorder()}
f := &http2FancyWriter{basicWriter: basicWriter{ResponseWriter: rec}}
err := f.Push("/some-path", nil)
if err != nil {
t.Fatalf("expected no error, got %v", err)
}
}
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