tests for SetCompact and GetCompact of CBigNum
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@ -122,4 +122,57 @@ BOOST_AUTO_TEST_CASE(bignum_setint64)
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}
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}
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BOOST_AUTO_TEST_CASE(bignum_SetCompact)
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{
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CBigNum num;
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num.SetCompact(0);
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BOOST_CHECK_EQUAL(num.GetHex(), "0");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0);
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num.SetCompact(0x00123456);
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BOOST_CHECK_EQUAL(num.GetHex(), "0");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0);
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num.SetCompact(0x01123456);
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BOOST_CHECK_EQUAL(num.GetHex(), "12");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x01120000);
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// Make sure that we don't generate compacts with the 0x00800000 bit set
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num = 0x80;
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x02008000);
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num.SetCompact(0x01fedcba);
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BOOST_CHECK_EQUAL(num.GetHex(), "-7e");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x01fe0000);
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num.SetCompact(0x02123456);
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BOOST_CHECK_EQUAL(num.GetHex(), "1234");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x02123400);
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num.SetCompact(0x03123456);
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BOOST_CHECK_EQUAL(num.GetHex(), "123456");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x03123456);
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num.SetCompact(0x04123456);
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BOOST_CHECK_EQUAL(num.GetHex(), "12345600");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x04123456);
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num.SetCompact(0x04923456);
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BOOST_CHECK_EQUAL(num.GetHex(), "-12345600");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x04923456);
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num.SetCompact(0x05009234);
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BOOST_CHECK_EQUAL(num.GetHex(), "92340000");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x05009234);
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num.SetCompact(0x20123456);
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BOOST_CHECK_EQUAL(num.GetHex(), "1234560000000000000000000000000000000000000000000000000000000000");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0x20123456);
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num.SetCompact(0xff123456);
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BOOST_CHECK_EQUAL(num.GetHex(), "123456000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000");
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BOOST_CHECK_EQUAL(num.GetCompact(), 0xff123456);
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}
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BOOST_AUTO_TEST_SUITE_END()
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