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package util
import "testing"
func TestToCharsNil(t *testing.T) {
bs := Chars{bytes: []byte{}}
if bs.bytes == nil || bs.runes != nil {
t.Error()
}
rs := RunesToChars([]rune{})
if rs.bytes != nil || rs.runes == nil {
t.Error()
}
}
func TestToCharsAscii(t *testing.T) {
chars := ToChars([]byte("foobar"))
if chars.ToString() != "foobar" || chars.runes != nil {
t.Error()
}
}
func TestCharsLength(t *testing.T) {
chars := ToChars([]byte("\tabc한글 "))
if chars.Length() != 8 || chars.TrimLength() != 5 {
t.Error()
}
}
func TestCharsToString(t *testing.T) {
text := "\tabc한글 "
chars := ToChars([]byte(text))
if chars.ToString() != text {
t.Error()
}
}
func TestTrimLength(t *testing.T) {
check := func(str string, exp int) {
chars := ToChars([]byte(str))
trimmed := chars.TrimLength()
if trimmed != exp {
t.Errorf("Invalid TrimLength result for '%s': %d (expected %d)",
str, trimmed, exp)
}
}
check("hello", 5)
check("hello ", 5)
check("hello ", 5)
check(" hello", 5)
check(" hello", 5)
check(" hello ", 5)
check(" hello ", 5)
check("h o", 5)
check(" h o ", 5)
check(" ", 0)
}
func TestSplit(t *testing.T) {
check := func(str string, delim string, tokens ...string) {
input := ToChars([]byte(str))
result := input.Split(delim)
if len(result) != len(tokens) {
t.Errorf("Invalid Split result for '%s': %d tokens found (expected %d): %s",
str, len(result), len(tokens), result)
}
for idx, token := range tokens {
if result[idx].ToString() != token {
t.Errorf("Invalid Split result for '%s': %s (expected %s)",
str, result[idx].ToString(), token)
}
}
}
check("abc:def::", ":", "abc:", "def:", ":")
check("abc:def::", "-", "abc:def::")
check("abc", "", "a", "b", "c")
check("abc", "a", "a", "bc")
check("abc", "ab", "ab", "c")
check("abc", "abc", "abc")
check("abc", "abcd", "abc")
check("", "abcd", "")
}
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