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// Copyright 2010 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.
package http_test
import (
"fmt"
. "http"
"http/httptest"
"io/ioutil"
"os"
"testing"
)
const (
testFile = "testdata/file"
testFileLength = 11
)
var ServeFileRangeTests = []struct {
start, end int
r string
code int
}{
{0, testFileLength, "", StatusOK},
{0, 5, "0-4", StatusPartialContent},
{2, testFileLength, "2-", StatusPartialContent},
{testFileLength - 5, testFileLength, "-5", StatusPartialContent},
{3, 8, "3-7", StatusPartialContent},
{0, 0, "20-", StatusRequestedRangeNotSatisfiable},
}
func TestServeFile(t *testing.T) {
ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) {
ServeFile(w, r, "testdata/file")
}))
defer ts.Close()
var err os.Error
file, err := ioutil.ReadFile(testFile)
if err != nil {
t.Fatal("reading file:", err)
}
// set up the Request (re-used for all tests)
var req Request
req.Header = make(Header)
if req.URL, err = ParseURL(ts.URL); err != nil {
t.Fatal("ParseURL:", err)
}
req.Method = "GET"
// straight GET
_, body := getBody(t, req)
if !equal(body, file) {
t.Fatalf("body mismatch: got %q, want %q", body, file)
}
// Range tests
for _, rt := range ServeFileRangeTests {
req.Header.Set("Range", "bytes="+rt.r)
if rt.r == "" {
req.Header["Range"] = nil
}
r, body := getBody(t, req)
if r.StatusCode != rt.code {
t.Errorf("range=%q: StatusCode=%d, want %d", rt.r, r.StatusCode, rt.code)
}
if rt.code == StatusRequestedRangeNotSatisfiable {
continue
}
h := fmt.Sprintf("bytes %d-%d/%d", rt.start, rt.end-1, testFileLength)
if rt.r == "" {
h = ""
}
cr := r.Header.Get("Content-Range")
if cr != h {
t.Errorf("header mismatch: range=%q: got %q, want %q", rt.r, cr, h)
}
if !equal(body, file[rt.start:rt.end]) {
t.Errorf("body mismatch: range=%q: got %q, want %q", rt.r, body, file[rt.start:rt.end])
}
}
}
func getBody(t *testing.T, req Request) (*Response, []byte) {
r, err := DefaultClient.Do(&req)
if err != nil {
t.Fatal(req.URL.String(), "send:", err)
}
b, err := ioutil.ReadAll(r.Body)
if err != nil {
t.Fatal("reading Body:", err)
}
return r, b
}
func equal(a, b []byte) bool {
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
return false
}
}
return true
}
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