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UtilsTest: Add CompactBits test cases for common difficulties

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This commit is contained in:
Sean Gilligan 2021-09-06 15:42:25 -07:00 • committed by Andreas Schildbach
parent a19986d475
commit 6412db3319
1 changed files with 6 additions and 0 deletions
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6
core/src/test/java/org/bitcoinj/core/UtilsTest.java
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@ -40,6 +40,12 @@ public class UtilsTest {
assertEquals(new BigInteger("c0de000000", 16), Utils.decodeCompactBits(0x0600c0de));
assertEquals(0x05123456L, Utils.encodeCompactBits(new BigInteger("1234560000", 16)));
assertEquals(0x0600c0deL, Utils.encodeCompactBits(new BigInteger("c0de000000", 16)));
// UnitTest difficulty
assertEquals(new BigInteger("7fffff0000000000000000000000000000000000000000000000000000000000", 16), Utils.decodeCompactBits(0x207fFFFFL));
assertEquals(0x207fFFFFL, Utils.encodeCompactBits(new BigInteger("7fffff0000000000000000000000000000000000000000000000000000000000", 16)));
// MainNet starting difficulty
assertEquals(new BigInteger("00000000FFFF0000000000000000000000000000000000000000000000000000", 16), Utils.decodeCompactBits(0x1d00ffffL));
assertEquals(0x1d00ffffL, Utils.encodeCompactBits(new BigInteger("00000000FFFF0000000000000000000000000000000000000000000000000000", 16)));
}
@Test