func testRandString(tt testing2.TB, f func(int) (string, error), charset string) {
s, e := f(32)
tt.
Eq(e, nil).
Eq(32, len(s)).
True(strings2.IsAllCharsIn(s, charset))
}
func testRandBytes(tt testing2.TB, f func(int) ([]byte, error), charset string) {
s, e := f(32)
tt.
Eq(e, nil).
Eq(32, len(s)).
True(strings2.IsAllCharsIn(unsafe2.String(s), charset))
}
func (c Chars) Validate(s string) error {
if !strings2.IsAllCharsIn(s, c.Chars) {
return c.Err
}
return nil
}