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Improve VarInt: simplify, fix some minor bugs and increase test coverage.

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This commit is contained in:
Mike Hearn
2011-03-13 21:29:25 +00:00
parent debd034c71
commit a504328044
2 changed files with 27 additions and 18 deletions
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24
tests/com/google/bitcoin/core/VarIntTest.java
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@@ -19,25 +19,33 @@ package com.google.bitcoin.core;
import junit.framework.TestCase;
public class VarIntTest extends TestCase {
public void testVarInts() throws Exception {
VarInt a;
// Bytes
a = new VarInt(10);
public void testBytes() throws Exception {
VarInt a = new VarInt(10);
assertEquals(1, a.getSizeInBytes());
assertEquals(1, a.encode().length);
assertEquals(10, new VarInt(a.encode(), 0).value);
}
// Shorts
a = new VarInt(64000);
public void testShorts() throws Exception {
VarInt a = new VarInt(64000);
assertEquals(3, a.getSizeInBytes());
assertEquals(3, a.encode().length);
assertEquals(64000, new VarInt(a.encode(), 0).value);
}
a = new VarInt(0xAABBCCDDL);
public void testInts() throws Exception {
VarInt a = new VarInt(0xAABBCCDDL);
assertEquals(5, a.getSizeInBytes());
assertEquals(5, a.encode().length);
byte[] bytes = a.encode();
assertEquals(0xAABBCCDDL, 0xFFFFFFFFL & new VarInt(bytes, 0).value);
}
public void testLong() throws Exception {
VarInt a = new VarInt(0xCAFEBABEDEADBEEFL);
assertEquals(9, a.getSizeInBytes());
assertEquals(9, a.encode().length);
byte[] bytes = a.encode();
assertEquals(0xCAFEBABEDEADBEEFL, new VarInt(bytes, 0).value);
}
}