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package model.asn1;
import model.asn1.exceptions.ParseException;
import model.asn1.parsing.BytesReader;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;
public class PrintableStringTest {
private final String ILLEGAL_CHARS_TO_TEST =
"<>\\[]{}@!*&^%$#_|`~";
@Test
void testAcceptedString() throws ParseException {
final PrintableString string =
new PrintableString(PrintableString.TAG, null, "0123456789abCdExYz '()+,-./:=?");
assertEquals("0123456789abCdExYz '()+,-./:=?", string.getString());
}
@Test
void testIllegalStrings() {
ILLEGAL_CHARS_TO_TEST.chars()
.forEach(c ->
assertThrows(ParseException.class,
() -> new PrintableString(PrintableString.TAG, null, Character.toString(c)),
String.format("Expected failing validation by char '%c'.", c))
);
}
@Test
void testEncode() throws ParseException {
assertArrayEquals(
new Byte[] { 0x68, 0x68, 0x68 },
new PrintableString(PrintableString.TAG, null, "hhh").encodeValueDER());
assertArrayEquals(
new Byte[] {
0x13, 0x02, // Tag - Length
0x68, 0x69 // Value
}, new PrintableString(PrintableString.TAG, null, "hi").encodeDER());
assertArrayEquals(
new Byte[] {
-86, 0x05, // Parent Tag - Length
0x13, 0x03, // Inner Tag - Length
0x68, 0x69, 0x69 // Value
}, new PrintableString(PrintableString.TAG,
new Tag(TagClass.CONTEXT_SPECIFIC, true, 10),
"hii").encodeDER());
}
@Test
void testParse() throws ParseException {
assertEquals("123",
new PrintableString(new BytesReader(new Byte[]{ 0x13, 3, '1', '2', '3' }), false)
.getString());
assertEquals("",
new PrintableString(new BytesReader(new Byte[]{ 0x13, 0, '1', '2', '3' }), false)
.getString());
}
@Test
void testParseFail() {
// EOF
assertThrows(ParseException.class, () ->
new PrintableString(new BytesReader(new Byte[]{ 0x13, 1 }), false));
// Illegal chars
assertThrows(ParseException.class, () ->
new PrintableString(new BytesReader(new Byte[]{ 0x13, 2, '1', '*' }), false));
assertThrows(ParseException.class, () ->
new PrintableString(new BytesReader(new Byte[]{ 0x13, 2, '1', '@' }), false));
}
}
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