/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @author Stepan M. Mishura
* @version $Revision$
*/
package org.apache.harmony.security.tests.asn1.der;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Arrays;
import junit.framework.TestCase;
import org.apache.harmony.security.asn1.ASN1BitString;
import org.apache.harmony.security.asn1.ASN1Exception;
import org.apache.harmony.security.asn1.BitString;
import org.apache.harmony.security.asn1.DerInputStream;
import org.apache.harmony.security.asn1.DerOutputStream;
import org.apache.harmony.security.asn1.ASN1BitString.ASN1NamedBitList;
/**
* ASN.1 DER test for Bitstring type
*
* @see http://asn1.elibel.tm.fr/en/standards/index.htm
*/
public class BitStringTest extends TestCase {
public static void main(String[] args) {
junit.textui.TestRunner.run(BitStringTest.class);
}
private static Object[][] validBitstring = new Object[][] {
//bitstring array format: bitstring object/ byte array
//
{ new BitString(new byte[] {}, 0), // object
new byte[] { 0x03, 0x01, 0x00 } },
//
{ new BitString(new byte[] { 0x05 }, 0), // object
new byte[] { 0x03, 0x02, 0x00, 0x05 } },
//
{ new BitString(new byte[] { (byte) 0x80 }, 7), // object
new byte[] { 0x03, 0x02, 0x07, (byte) 0x80 } } };
public void testDecode_Encode() throws IOException {
// decoder/encoder for testing
ASN1BitString asn1 = ASN1BitString.getInstance();
// decode from byte array
for (int i = 0; i < validBitstring.length; i++) {
DerInputStream in = new DerInputStream(
(byte[]) validBitstring[i][1]);
BitString expected = (BitString) validBitstring[i][0];
BitString decoded = (BitString) asn1.decode(in);
assertEquals("Testcase: " + i, expected.unusedBits,
decoded.unusedBits);
assertTrue("Testcase: " + i, Arrays.equals(expected.bytes,
decoded.bytes));
}
// decode from input stream
for (int i = 0; i < validBitstring.length; i++) {
DerInputStream in = new DerInputStream(new ByteArrayInputStream(
(byte[]) validBitstring[i][1]));
BitString expected = (BitString) validBitstring[i][0];
BitString decoded = (BitString) asn1.decode(in);
assertEquals("Testcase: " + i, expected.unusedBits,
decoded.unusedBits);
assertTrue("Testcase: " + i, Arrays.equals(expected.bytes,
decoded.bytes));
}
// encoding
for (int i = 0; i < validBitstring.length; i++) {
DerOutputStream out = new DerOutputStream(asn1,
validBitstring[i][0]);
assertTrue("Testcase: " + i, Arrays.equals(
(byte[]) validBitstring[i][1], out.encoded));
}
}
public void testDecode_Invalid() throws IOException {
byte[][] invalid = new byte[][] {
// wrong tag: tag is not 0x03
new byte[] { 0x02, 0x01, 0x00 },
// wrong length: length is 0
new byte[] { 0x03, 0x00 },
// wrong content: unused bits value > 7
new byte[] { 0x03, 0x03, 0x09, 0x0F, 0x0F },
// wrong content: not 0 unused bits for empty string
new byte[] { 0x03, 0x01, 0x01 },
// wrong content: unused bits in final octet are not 0
new byte[] { 0x03, 0x02, 0x01, 0x01 },
// wrong content: constructed encoding
new byte[] { 0x23, 0x03, 0x03, 0x01, 0x00 } };
for (int i = 0; i < invalid.length; i++) {
try {
DerInputStream in = new DerInputStream(invalid[i]);
ASN1BitString.getInstance().decode(in);
fail("No expected ASN1Exception for: " + i);
} catch (ASN1Exception e) {
}
}
}
//
//
// Named Bit List
//
//
public void testDecodeNamedBitList() throws IOException {
Object[][] testcaseBoolean = new Object[][] {
// bitstring array format: bitstring object/ byte array
//
{ new boolean[] {}, // object
new byte[] { 0x03, 0x01, 0x00 } },
//
{ new boolean[] { true }, // object
new byte[] { 0x03, 0x02, 0x07, (byte) 0x80 } },
//
{ new boolean[] { true, false, true }, // object
new byte[] { 0x03, 0x02, 0x05, (byte) 0xA0 } },
//
{
new boolean[] { true, true, true, true, true, true,
true, true }, // object
new byte[] { 0x03, 0x02, 0x00, (byte) 0xFF } },
//
{
new boolean[] { false, false, false, false, false,
false, false, false, true }, // object
new byte[] { 0x03, 0x03, 0x07, 0x00, (byte) 0x80 } } };
ASN1NamedBitList decoder = new ASN1NamedBitList();
for (int i = 0; i < testcaseBoolean.length; i++) {
DerInputStream in = new DerInputStream(
(byte[]) testcaseBoolean[i][1]);
assertTrue("Testcase: " + i, Arrays.equals(
(boolean[]) testcaseBoolean[i][0], (boolean[]) decoder
.decode(in)));
}
}
public void testDecodeNamedBitList_SizeConstraints() throws IOException {
Object[][] testcaseBoolean = new Object[][] {
//bitstring array format: bitstring object/ byte array
//
{
new boolean[] { false, false, false, false, false,
false, false, false }, // object
new byte[] { 0x03, 0x01, 0x00 } },
//
{
new boolean[] { true, false, false, false, false,
false, false, false }, // object
new byte[] { 0x03, 0x02, 0x07, (byte) 0x80 } },
//
{
new boolean[] { true, false, true, false, false, false,
false, false }, // object
new byte[] { 0x03, 0x02, 0x05, (byte) 0xA0 } },
//
{
new boolean[] { true, true, true, true, true, true,
true, true }, // object
new byte[] { 0x03, 0x02, 0x00, (byte) 0xFF } },
//
{
new boolean[] { false, false, false, false, false,
false, false, false, true }, // object
new byte[] { 0x03, 0x03, 0x07, 0x00, (byte) 0x80 } } };
ASN1NamedBitList decoder = new ASN1NamedBitList(8);
for (int i = 0; i < testcaseBoolean.length; i++) {
DerInputStream in = new DerInputStream(
(byte[]) testcaseBoolean[i][1]);
assertTrue("Testcase: " + i, Arrays.equals(
(boolean[]) testcaseBoolean[i][0], (boolean[]) decoder
.decode(in)));
}
}
public void testEncodeNamedBitList() throws IOException {
Object[][] testcaseBoolean = new Object[][] {
//bitstring array format: bitstring object/ byte array
//
{ new boolean[] {}, // object
new byte[] { 0x03, 0x01, 0x00 } },
//
{ new boolean[] { false }, // object
new byte[] { 0x03, 0x01, 0x00 } },
//
{ new boolean[] { true }, // object
new byte[] { 0x03, 0x02, 0x07, (byte) 0x80 } },
//
{ new boolean[] { true, false, true }, // object
new byte[] { 0x03, 0x02, 0x05, (byte) 0xA0 } },
//
{
new boolean[] { true, true, true, true, true, true,
true, true }, // object
new byte[] { 0x03, 0x02, 0x00, (byte) 0xFF } },
//
{
new boolean[] { false, false, false, false, false,
false, false, false, true }, // object
new byte[] { 0x03, 0x03, 0x07, 0x00, (byte) 0x80 } } };
ASN1NamedBitList encoder = new ASN1NamedBitList();
for (int i = 0; i < testcaseBoolean.length; i++) {
DerOutputStream out = new DerOutputStream(encoder,
testcaseBoolean[i][0]);
assertTrue("Testcase: " + i, Arrays.equals(
(byte[]) testcaseBoolean[i][1], out.encoded));
}
}
}