From 6f0cecfc47269811b8f1a20a21c2ac6736d24c2e Mon Sep 17 00:00:00 2001 From: Christian von Roques Date: Sat, 15 Sep 2012 19:08:50 +0200 Subject: tests for SetCompact and GetCompact of CBigNum --- src/test/bignum_tests.cpp | 53 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) (limited to 'src/test') diff --git a/src/test/bignum_tests.cpp b/src/test/bignum_tests.cpp index 744681871f..5b898d1499 100644 --- a/src/test/bignum_tests.cpp +++ b/src/test/bignum_tests.cpp @@ -122,4 +122,57 @@ BOOST_AUTO_TEST_CASE(bignum_setint64) } } + +BOOST_AUTO_TEST_CASE(bignum_SetCompact) +{ + CBigNum num; + num.SetCompact(0); + BOOST_CHECK_EQUAL(num.GetHex(), "0"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0); + + num.SetCompact(0x00123456); + BOOST_CHECK_EQUAL(num.GetHex(), "0"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0); + + num.SetCompact(0x01123456); + BOOST_CHECK_EQUAL(num.GetHex(), "12"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x01120000); + + // Make sure that we don't generate compacts with the 0x00800000 bit set + num = 0x80; + BOOST_CHECK_EQUAL(num.GetCompact(), 0x02008000); + + num.SetCompact(0x01fedcba); + BOOST_CHECK_EQUAL(num.GetHex(), "-7e"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x01fe0000); + + num.SetCompact(0x02123456); + BOOST_CHECK_EQUAL(num.GetHex(), "1234"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x02123400); + + num.SetCompact(0x03123456); + BOOST_CHECK_EQUAL(num.GetHex(), "123456"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x03123456); + + num.SetCompact(0x04123456); + BOOST_CHECK_EQUAL(num.GetHex(), "12345600"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x04123456); + + num.SetCompact(0x04923456); + BOOST_CHECK_EQUAL(num.GetHex(), "-12345600"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x04923456); + + num.SetCompact(0x05009234); + BOOST_CHECK_EQUAL(num.GetHex(), "92340000"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x05009234); + + num.SetCompact(0x20123456); + BOOST_CHECK_EQUAL(num.GetHex(), "1234560000000000000000000000000000000000000000000000000000000000"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0x20123456); + + num.SetCompact(0xff123456); + BOOST_CHECK_EQUAL(num.GetHex(), "123456000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"); + BOOST_CHECK_EQUAL(num.GetCompact(), 0xff123456); +} + BOOST_AUTO_TEST_SUITE_END() -- cgit v1.2.3