metainfo tests: Fix some naming conventions

metainfo/metainfo_test.go

@@ -13,7 +13,7 @@ import (
 	"github.com/anacrolix/torrent/bencode"
 )
 
-func test_file(t *testing.T, filename string) {
+func testFile(t *testing.T, filename string) {
 	mi, err := LoadFromFile(filename)
 	if err != nil {
 		t.Fatal(err)
@@ -45,10 +45,10 @@ func test_file(t *testing.T, filename string) {
 }
 
 func TestFile(t *testing.T) {
-	test_file(t, "_testdata/archlinux-2011.08.19-netinstall-i686.iso.torrent")
-	test_file(t, "_testdata/continuum.torrent")
-	test_file(t, "_testdata/23516C72685E8DB0C8F15553382A927F185C4F01.torrent")
-	test_file(t, "_testdata/trackerless.torrent")
+	testFile(t, "testdata/archlinux-2011.08.19-netinstall-i686.iso.torrent")
+	testFile(t, "testdata/continuum.torrent")
+	testFile(t, "testdata/23516C72685E8DB0C8F15553382A927F185C4F01.torrent")
+	testFile(t, "testdata/trackerless.torrent")
 }
 
 // Ensure that the correct number of pieces are generated when hashing files.