Jabit/core/src/test/java/ch/dissem/bitmessage/utils/DecodeTest.java

41 lines
1.3 KiB
Java

/*
* Copyright 2015 Christian Basler
*
* 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 ch.dissem.bitmessage.utils;
import org.junit.Test;
import java.io.*;
import static org.junit.Assert.assertEquals;
public class DecodeTest {
@Test
public void ensureDecodingWorks() throws Exception {
// This should test all relevant cases for var_int and therefore also uint_16, uint_32 and int_64
testCodec(0);
for (long i = 1; i > 0; i = 3 * i + 7) {
testCodec(i);
}
}
private void testCodec(long number) throws IOException {
ByteArrayOutputStream is = new ByteArrayOutputStream();
Encode.varInt(number, is);
assertEquals(number, Decode.varInt(new ByteArrayInputStream(is.toByteArray())));
}
}