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package iconv_test
import (
"bytes"
"io"
"strings"
"testing"
"unicode/utf8"
"github.com/paulrosania/go-charset/charset"
_ "github.com/paulrosania/go-charset/charset/iconv"
)
// TODO(rog) better than this
func TestNames(t *testing.T) {
charset.Names()
}
type translateTest struct {
canRoundTrip bool
charset string
in string
out string
}
var tests = []translateTest{
{true, "iso-8859-15", "\xa41 is cheap", "€1 is cheap"},
// {true, "ms-kanji", "\x82\xb1\x82\xea\x82\xcd\x8a\xbf\x8e\x9a\x82\xc5\x82\xb7\x81B", "これは漢字です。"},
{true, "utf-16le", "S0\x8c0o0\"oW[g0Y0\x020", "これは漢字です。"},
{true, "utf-16be", "0S0\x8c0oo\"[W0g0Y0\x02", "これは漢字です。"},
{true, "utf-8", "♔", "♔"},
{false, "utf-8", "a♔é\x80", "a♔é" + string(utf8.RuneError)},
{true, "latin1", "\xa35 for Pepp\xe9", "£5 for Peppé"},
}
func TestCharsets(t *testing.T) {
for i, test := range tests {
t.Logf("test %d", i)
test.run(t)
}
}
func translate(tr charset.Translator, in string) (string, error) {
var buf bytes.Buffer
r := charset.NewTranslatingReader(strings.NewReader(in), tr)
_, err := io.Copy(&buf, r)
if err != nil {
return "", err
}
return string(buf.Bytes()), nil
}
func (test translateTest) run(t *testing.T) {
cs := charset.Info(test.charset)
if cs == nil {
t.Fatalf("no info found for %q", test.charset)
}
fromtr, err := charset.TranslatorFrom(test.charset)
if err != nil {
t.Fatalf("error making translator from %q: %v", test.charset, err)
}
out, err := translate(fromtr, test.in)
if err != nil {
t.Fatalf("error translating from %q: %v", test.charset, err)
}
if out != test.out {
t.Fatalf("error translating from %q: expected %x got %x", test.charset, test.out, out)
}
if cs.NoTo || !test.canRoundTrip {
return
}
totr, err := charset.TranslatorTo(test.charset)
if err != nil {
t.Fatalf("error making translator to %q: %v", test.charset, err)
}
in, err := translate(totr, out)
if err != nil {
t.Fatalf("error translating to %q: %v", test.charset, err)
}
if in != test.in {
t.Fatalf("%q round trip conversion failed; expected %x got %x", test.charset, test.in, in)
}
}
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