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.assertArrayEquals;
import static org.junit.jupiter.api.Assertions.assertThrows;

public class OctetStringTest {
    @Test
    void testConstructor() {
        assertArrayEquals(new Byte[]{0x00, 0x01, 0x02, 0x03, 0x04, 0x05},
                new OctetString(OctetString.TAG, null, new Byte[]{0x00, 0x01, 0x02, 0x03, 0x04, 0x05})
                        .getBytes());
        assertArrayEquals(new Byte[]{0x00, 0x01, 0x02, 0x03, 0x04, 0x05},
                new OctetString(OctetString.TAG, null, new Byte[]{0x00, 0x01, 0x02, 0x03, 0x04, 0x05})
                        .encodeValueDER());
    }

    @Test
    void testEncode() throws ParseException {
        assertArrayEquals(new Byte[]{0x04, 0x06, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05},
                new OctetString(OctetString.TAG, null, new Byte[]{0x00, 0x01, 0x02, 0x03, 0x04, 0x05})
                        .encodeDER());
    }

    @Test
    void testParse() throws ParseException {
        assertArrayEquals(new Byte[]{0x0A, 0x0B, 0x0C},
                new OctetString(new BytesReader(new Byte[]{0x4, 3, 0x0A, 0x0B, 0x0C}), false)
                        .getBytes());
    }

    @Test
    void testParseFail() {
        // EOF
        assertThrows(ParseException.class, () ->
                new OctetString(new BytesReader(new Byte[]{0x4, 2, 0x0}), false));
    }
}