| // 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. |
| |
| package http_test |
| |
| import ( |
| "bytes" |
| . "http" |
| "http/httptest" |
| "io/ioutil" |
| "log" |
| "strconv" |
| "testing" |
| ) |
| |
| var sniffTests = []struct { |
| desc string |
| data []byte |
| contentType string |
| }{ |
| // Some nonsense. |
| {"Empty", []byte{}, "text/plain; charset=utf-8"}, |
| {"Binary", []byte{1, 2, 3}, "application/octet-stream"}, |
| |
| {"HTML document #1", []byte(`<HtMl><bOdY>blah blah blah</body></html>`), "text/html; charset=utf-8"}, |
| {"HTML document #2", []byte(`<HTML></HTML>`), "text/html; charset=utf-8"}, |
| {"HTML document #3 (leading whitespace)", []byte(` <!DOCTYPE HTML>...`), "text/html; charset=utf-8"}, |
| |
| {"Plain text", []byte(`This is not HTML. It has ☃ though.`), "text/plain; charset=utf-8"}, |
| |
| {"XML", []byte("\n<?xml!"), "text/xml; charset=utf-8"}, |
| |
| // Image types. |
| {"GIF 87a", []byte(`GIF87a`), "image/gif"}, |
| {"GIF 89a", []byte(`GIF89a...`), "image/gif"}, |
| |
| // TODO(dsymonds): Re-enable this when the spec is sorted w.r.t. MP4. |
| //{"MP4 video", []byte("\x00\x00\x00\x18ftypmp42\x00\x00\x00\x00mp42isom<\x06t\xbfmdat"), "video/mp4"}, |
| //{"MP4 audio", []byte("\x00\x00\x00\x20ftypM4A \x00\x00\x00\x00M4A mp42isom\x00\x00\x00\x00"), "audio/mp4"}, |
| } |
| |
| func TestDetectContentType(t *testing.T) { |
| for _, tt := range sniffTests { |
| ct := DetectContentType(tt.data) |
| if ct != tt.contentType { |
| t.Errorf("%v: DetectContentType = %q, want %q", tt.desc, ct, tt.contentType) |
| } |
| } |
| } |
| |
| func TestServerContentType(t *testing.T) { |
| ts := httptest.NewServer(HandlerFunc(func(w ResponseWriter, r *Request) { |
| i, _ := strconv.Atoi(r.FormValue("i")) |
| tt := sniffTests[i] |
| n, err := w.Write(tt.data) |
| if n != len(tt.data) || err != nil { |
| log.Fatalf("%v: Write(%q) = %v, %v want %d, nil", tt.desc, tt.data, n, err, len(tt.data)) |
| } |
| })) |
| defer ts.Close() |
| |
| for i, tt := range sniffTests { |
| resp, err := Get(ts.URL + "/?i=" + strconv.Itoa(i)) |
| if err != nil { |
| t.Errorf("%v: %v", tt.desc, err) |
| continue |
| } |
| if ct := resp.Header.Get("Content-Type"); ct != tt.contentType { |
| t.Errorf("%v: Content-Type = %q, want %q", tt.desc, ct, tt.contentType) |
| } |
| data, err := ioutil.ReadAll(resp.Body) |
| if err != nil { |
| t.Errorf("%v: reading body: %v", tt.desc, err) |
| } else if !bytes.Equal(data, tt.data) { |
| t.Errorf("%v: data is %q, want %q", tt.desc, data, tt.data) |
| } |
| resp.Body.Close() |
| } |
| } |
