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test: fix creation of std::string objects with \0s

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A string literal `"abc"` contains a terminating `\0`, so that is 4
bytes. There is no need to write `"abc\0"` unless two terminating
`\0`s are necessary.

`std::string` objects do not internally contain a terminating `\0`, so
`std::string("abc")` creates a string with size 3 and is the same as
`std::string("abc", 3)`.

In `"\01"` the `01` part is interpreted as one number (1) and that is
the same as `"\1"` which is a string like `{1, 0}` whereas `"\0z"` is a
string like `{0, 'z', 0}`. To create a string like `{0, '1', 0}` one
must use `"\0" "1"`.

Adjust the tests accordingly.
This commit is contained in:
Vasil Dimov
2020-09-23 08:40:38 +02:00
parent b1291b2e8f
commit ecc6cf1a3b
6 changed files with 59 additions and 44 deletions
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26
src/test/netbase_tests.cpp
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@@ -12,6 +12,8 @@
#include <boost/test/unit_test.hpp>
using namespace std::literals;
BOOST_FIXTURE_TEST_SUITE(netbase_tests, BasicTestingSetup)
static CNetAddr ResolveIP(const std::string& ip)
@@ -427,20 +429,20 @@ BOOST_AUTO_TEST_CASE(netpermissions_test)
BOOST_AUTO_TEST_CASE(netbase_dont_resolve_strings_with_embedded_nul_characters)
{
CNetAddr addr;
BOOST_CHECK(LookupHost(std::string("127.0.0.1", 9), addr, false));
BOOST_CHECK(!LookupHost(std::string("127.0.0.1\0", 10), addr, false));
BOOST_CHECK(!LookupHost(std::string("127.0.0.1\0example.com", 21), addr, false));
BOOST_CHECK(!LookupHost(std::string("127.0.0.1\0example.com\0", 22), addr, false));
BOOST_CHECK(LookupHost("127.0.0.1"s, addr, false));
BOOST_CHECK(!LookupHost("127.0.0.1\0"s, addr, false));
BOOST_CHECK(!LookupHost("127.0.0.1\0example.com"s, addr, false));
BOOST_CHECK(!LookupHost("127.0.0.1\0example.com\0"s, addr, false));
CSubNet ret;
BOOST_CHECK(LookupSubNet(std::string("1.2.3.0/24", 10), ret));
BOOST_CHECK(!LookupSubNet(std::string("1.2.3.0/24\0", 11), ret));
BOOST_CHECK(!LookupSubNet(std::string("1.2.3.0/24\0example.com", 22), ret));
BOOST_CHECK(!LookupSubNet(std::string("1.2.3.0/24\0example.com\0", 23), ret));
BOOST_CHECK(LookupSubNet("1.2.3.0/24"s, ret));
BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0"s, ret));
BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0example.com"s, ret));
BOOST_CHECK(!LookupSubNet("1.2.3.0/24\0example.com\0"s, ret));
// We only do subnetting for IPv4 and IPv6
BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion", 22), ret));
BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion\0", 23), ret));
BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion\0example.com", 34), ret));
BOOST_CHECK(!LookupSubNet(std::string("5wyqrzbvrdsumnok.onion\0example.com\0", 35), ret));
BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion"s, ret));
BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion\0"s, ret));
BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion\0example.com"s, ret));
BOOST_CHECK(!LookupSubNet("5wyqrzbvrdsumnok.onion\0example.com\0"s, ret));
}
BOOST_AUTO_TEST_SUITE_END()