/**
* Copyright 2011 Google Inc.
*
* Licensed 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.
*/
package com.google.feathercoin.core;
import junit.framework.TestCase;
import java.math.BigInteger;
import java.util.Arrays;
public class Base58Test extends TestCase {
public void testEncode() throws Exception {
byte[] testbytes = "Hello World".getBytes();
assertEquals("JxF12TrwUP45BMd", Base58.encode(testbytes));
BigInteger bi = BigInteger.valueOf(3471844090L);
assertEquals("16Ho7Hs", Base58.encode(bi.toByteArray()));
byte[] zeroBytes1 = new byte[1];
assertEquals("1", Base58.encode(zeroBytes1));
byte[] zeroBytes7 = new byte[7];
assertEquals("1111111", Base58.encode(zeroBytes7));
}
public void testDecode() throws Exception {
byte[] testbytes = "Hello World".getBytes();
byte[] actualbytes = Base58.decode("JxF12TrwUP45BMd");
assertTrue(new String(actualbytes), Arrays.equals(testbytes, actualbytes));
assertTrue("1", Arrays.equals(Base58.decode("1"), new byte[1]));
assertTrue("1111", Arrays.equals(Base58.decode("1111"), new byte[4]));
try {
Base58.decode("This isn't valid base58");
fail();
} catch (AddressFormatException e) {
}
Base58.decodeChecked("4stwEBjT6FYyVV");
// Now check we can correctly decode the case where the high bit of the first byte is not zero, so BigInteger
// sign extends. Fix for a bug that stopped us parsing keys exported using sipas patch.
Base58.decodeChecked("93VYUMzRG9DdbRP72uQXjaWibbQwygnvaCu9DumcqDjGybD864T");
}
}