Tests throw exception: "trailing backslash (\\)"

[yurivict]

For example, test_libdnf_main throws in Regex::Regex:

(gdb) bt
#0  thr_kill () at thr_kill.S:4
#1  0x0000000800f269b4 in __raise (s=s@entry=6) at /disk-samsung/freebsd-src/lib/libc/gen/raise.c:52
#2  0x0000000800fd7359 in abort () at /disk-samsung/freebsd-src/lib/libc/stdlib/abort.c:67
#3  0x0000000801391d89 in report_failure(_Unwind_Reason_Code, __cxxabiv1::__cxa_exception*) (err=<optimized out>, thrown_exception=0x802827360) at /disk-samsung/freebsd-src/contrib/libcxxrt/exception.cc:714
#4  0x0000000800550134 in Regex::Regex(char const*, int) (this=0x80061b570 <libdnf::RELDEP_REGEX>, regex=0x80037afe8 "^(\\S*)\\s*(<=|>=|<|>|=|==)?\\s*(\\S*)$", flags=1)
    at /usr/ports/sysutils/libdnf/work/libdnf-0.70.1/libdnf/utils/regex/regex.cpp:33
#5  0x00000008005c901c in __cxx_global_var_init() () at /usr/ports/sysutils/libdnf/work/libdnf-0.70.1/libdnf/repo/DependencySplitter.cpp:32
#6  0x00000008005c9539 in _GLOBAL__sub_I_DependencySplitter.cpp () at /usr/ports/sysutils/libdnf/work/.build/libdnf/libdnf.so.2
#7  0x000000080021c33d in objlist_call_init (list=list@entry=0x7fffffffe6a8, lockstate=lockstate@entry=0x7fffffffe4b8) at /disk-samsung/freebsd-src/libexec/rtld-elf/rtld.c:3135
#8  0x000000080021a92a in _rtld (sp=<optimized out>, exit_proc=0x7fffffffe720, objp=0x7fffffffe728) at /disk-samsung/freebsd-src/libexec/rtld-elf/rtld.c:981
#9  0x0000000800218299 in rtld_start () at /disk-samsung/freebsd-src/libexec/rtld-elf/amd64/rtld_start.S:39
#10 0x0000000000000000 in  ()
(gdb) p msg.c_str()
$7 = (const std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::value_type *) 0x802820160 "trailing backslash (\\)"
(gdb) 

Version: 0.70.1
FreeBSD 13.2

[j-mracek]

Thank you very much for your report. We have limited option to investigate your issue therefore we need additional information.. Did previous version of libdnf worked properly?

[jan-kolarik]

Please reopen or create a new issue in case if it's still reproducible and more information are provided.