From 4521f005a1e61969f21b91a7e8eef5a5cdfdd191 Mon Sep 17 00:00:00 2001 From: "Wladimir J. van der Laan" Date: Sat, 9 Apr 2016 06:52:43 +0200 Subject: tests: add varints_bitpatterns test The current tests for varint only check that serialization-deserialization is a roundtrip. That is a useful test, but it is also good to check for some exact bit patterns, to prevent a code change that changes the serialization format from going undetected. As the varint functions are templated, also check with different types. --- src/test/serialize_tests.cpp | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'src/test/serialize_tests.cpp') diff --git a/src/test/serialize_tests.cpp b/src/test/serialize_tests.cpp index c0fd99aca2..bec2c7459d 100644 --- a/src/test/serialize_tests.cpp +++ b/src/test/serialize_tests.cpp @@ -160,6 +160,27 @@ BOOST_AUTO_TEST_CASE(varints) } } +BOOST_AUTO_TEST_CASE(varints_bitpatterns) +{ + CDataStream ss(SER_DISK, 0); + ss << VARINT(0); BOOST_CHECK_EQUAL(HexStr(ss), "00"); ss.clear(); + ss << VARINT(0x7f); BOOST_CHECK_EQUAL(HexStr(ss), "7f"); ss.clear(); + ss << VARINT((int8_t)0x7f); BOOST_CHECK_EQUAL(HexStr(ss), "7f"); ss.clear(); + ss << VARINT(0x80); BOOST_CHECK_EQUAL(HexStr(ss), "8000"); ss.clear(); + ss << VARINT((uint8_t)0x80); BOOST_CHECK_EQUAL(HexStr(ss), "8000"); ss.clear(); + ss << VARINT(0x1234); BOOST_CHECK_EQUAL(HexStr(ss), "a334"); ss.clear(); + ss << VARINT((int16_t)0x1234); BOOST_CHECK_EQUAL(HexStr(ss), "a334"); ss.clear(); + ss << VARINT(0xffff); BOOST_CHECK_EQUAL(HexStr(ss), "82fe7f"); ss.clear(); + ss << VARINT((uint16_t)0xffff); BOOST_CHECK_EQUAL(HexStr(ss), "82fe7f"); ss.clear(); + ss << VARINT(0x123456); BOOST_CHECK_EQUAL(HexStr(ss), "c7e756"); ss.clear(); + ss << VARINT((int32_t)0x123456); BOOST_CHECK_EQUAL(HexStr(ss), "c7e756"); ss.clear(); + ss << VARINT(0x80123456U); BOOST_CHECK_EQUAL(HexStr(ss), "86ffc7e756"); ss.clear(); + ss << VARINT((uint32_t)0x80123456U); BOOST_CHECK_EQUAL(HexStr(ss), "86ffc7e756"); ss.clear(); + ss << VARINT(0xffffffff); BOOST_CHECK_EQUAL(HexStr(ss), "8efefefe7f"); ss.clear(); + ss << VARINT(0x7fffffffffffffffLL); BOOST_CHECK_EQUAL(HexStr(ss), "fefefefefefefefe7f"); ss.clear(); + ss << VARINT(0xffffffffffffffffULL); BOOST_CHECK_EQUAL(HexStr(ss), "80fefefefefefefefe7f"); ss.clear(); +} + BOOST_AUTO_TEST_CASE(compactsize) { CDataStream ss(SER_DISK, 0); -- cgit v1.2.3