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/* Self tests for GDB's argument splitting and merging.
Copyright (C) 2023-2025 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdbsupport/selftest.h"
#include "gdbsupport/buildargv.h"
#include "gdbsupport/common-inferior.h"
#include "gdbsupport/remote-args.h"
#include "gdbsupport/gdb_argv_vec.h"
namespace selftests {
namespace remote_args_tests {
/* The data needed to perform a single remote argument test. */
struct arg_test_desc
{
/* The original inferior argument string. */
std::string input;
/* The individual arguments once they have been split. */
std::vector<std::string> split;
/* The new inferior argument string, created by joining SPLIT. */
std::string joined;
};
/* The list of tests. */
arg_test_desc desc[] = {
{ "abc", { "abc" }, "abc" },
{ "a b c", { "a", "b", "c" }, "a b c" },
{ "\"a b\" 'c d'", { "a b", "c d" }, "a\\ b c\\ d" },
{ "\\' \\\"", { "'", "\"" }, "\\' \\\"" },
{ "'\\'", { "\\" }, "\\\\" },
{ "\"\\\\\" \"\\\\\\\"\"", { "\\", "\\\"" }, "\\\\ \\\\\\\"" },
{ "\\ \" \" ' '", { " ", " ", " "}, "\\ \\ \\ " },
{ "\"'\"", { "'" }, "\\'" },
{ "'\"' '\\\"'", { "\"", "\\\"" } , "\\\" \\\\\\\""},
{ "\"first arg\" \"\" \"third-arg\" \"'\" \"\\\"\" \"\\\\\\\"\" \" \" \"\"",
{ "first arg", "", "third-arg", "'", "\"", "\\\""," ", "" },
"first\\ arg '' third-arg \\' \\\" \\\\\\\" \\ ''"},
{ "\"\\a\" \"\\&\" \"\\#\" \"\\<\" \"\\^\"",
{ "\\a", "\\&", "\\#" , "\\<" , "\\^"},
"\\\\a \\\\\\& \\\\\\# \\\\\\< \\\\\\^" },
{ "1 '\n' 3", { "1", "\n", "3" }, "1 '\n' 3" },
};
/* Run the remote argument passing self tests. */
static void
self_test ()
{
int failure_count = 0;
for (const auto &d : desc)
{
if (run_verbose ())
{
if (&d != &desc[0])
debug_printf ("------------------------------\n");
debug_printf ("Input (%s)\n", d.input.c_str ());
}
/* Split argument string into individual arguments. */
std::vector<std::string> split_args = gdb::remote_args::split (d.input);
if (run_verbose ())
{
debug_printf ("Split:\n");
size_t len = std::max (split_args.size (), d.split.size ());
for (size_t i = 0; i < len; ++i)
{
const char *got = "N/A";
const char *expected = got;
if (i < split_args.size ())
got = split_args[i].c_str ();
if (i < d.split.size ())
expected = d.split[i].c_str ();
debug_printf (" got (%s), expected (%s)\n", got, expected);
}
}
if (split_args != d.split)
{
++failure_count;
if (run_verbose ())
debug_printf ("FAIL\n");
continue;
}
/* Now join the arguments. */
gdb::argv_vec split_args_c_str;
for (const std::string &s : split_args)
split_args_c_str.push_back (xstrdup (s.c_str ()));
std::string joined_args
= gdb::remote_args::join (split_args_c_str.get ());
if (run_verbose ())
debug_printf ("Joined (%s), expected (%s)\n",
joined_args.c_str (), d.joined.c_str ());
if (joined_args != d.joined)
{
++failure_count;
if (run_verbose ())
debug_printf ("FAIL\n");
continue;
}
/* The contents of JOINED_ARGS will not be identical to D.INPUT.
There are multiple ways that an argument can be escaped, and our
join function just picks one. However, if we split JOINED_ARGS
again then each individual argument should be the same as those in
SPLIT_ARGS. So test that next. */
std::vector<std::string> split_args_v2
= gdb::remote_args::split (joined_args);
if (split_args_v2 != split_args)
{
++failure_count;
if (run_verbose ())
{
debug_printf ("Re-split:\n");
for (const auto &a : split_args_v2)
debug_printf (" got (%s)\n", a.c_str ());
debug_printf ("FAIL\n");
}
continue;
}
if (run_verbose ())
debug_printf ("PASS\n");
}
SELF_CHECK (failure_count == 0);
}
} /* namespace remote_args_tests */
} /* namespace selftests */
void _initialize_remote_arg_selftests ();
void
_initialize_remote_arg_selftests ()
{
selftests::register_test ("remote-args",
selftests::remote_args_tests::self_test);
}
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