fix test

Author: wxiaoguang

modules/typesniffer/typesniffer_test.go

@@ -4,7 +4,6 @@
 package typesniffer
 
 import (
-	"bytes"
 	"encoding/base64"
 	"encoding/hex"
 	"strings"
@@ -116,22 +115,13 @@ func TestIsAudio(t *testing.T) {
 	assert.True(t, DetectContentType([]byte("ID3Toy\n====\t* hi 🌞, ..."+"🌛"[0:2])).IsText()) // test ID3 tag with incomplete UTF8 char
 }
 
-func TestDetectContentTypeFromReader(t *testing.T) {
-	mp3, _ := base64.StdEncoding.DecodeString("SUQzBAAAAAABAFRYWFgAAAASAAADbWFqb3JfYnJhbmQAbXA0MgBUWFhYAAAAEQAAA21pbm9yX3Zl")
-	st, err := DetectContentTypeFromReader(bytes.NewReader(mp3))
-	assert.NoError(t, err)
-	assert.True(t, st.IsAudio())
-}
-
 func TestDetectContentTypeOgg(t *testing.T) {
 	oggAudio, _ := hex.DecodeString("4f67675300020000000000000000352f0000000000007dc39163011e01766f72626973000000000244ac0000000000000071020000000000b8014f6767530000")
-	st, err := DetectContentTypeFromReader(bytes.NewReader(oggAudio))
-	assert.NoError(t, err)
+	st := DetectContentType(oggAudio)
 	assert.True(t, st.IsAudio())
 
 	oggVideo, _ := hex.DecodeString("4f676753000200000000000000007d9747ef000000009b59daf3012a807468656f7261030201001e00110001e000010e00020000001e00000001000001000001")
-	st, err = DetectContentTypeFromReader(bytes.NewReader(oggVideo))
-	assert.NoError(t, err)
+	st = DetectContentType(oggVideo)
 	assert.True(t, st.IsVideo())
 }