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[test-string-converters.cpp] add some string->number tests

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This commit is contained in:
Christopher Lam 2024-03-20 23:40:23 +08:00
parent 1f9ea6bc99
commit 249ec9f43a
1 changed files with 88 additions and 0 deletions
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88
libgnucash/backend/xml/test/test-string-converters.cpp
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@ -25,10 +25,12 @@
#include "test-engine-stuff.h"
#include "test-file-stuff.h"
#include "sixtp-utils.h"
#include "sixtp-dom-parsers.h"
#include "sixtp-dom-generators.h"
#include "test-stuff.h"
#include <optional>
#define GNC_V2_STRING "gnc-v2"
const gchar* gnc_v2_xml_version_string = GNC_V2_STRING;
@ -79,6 +81,85 @@ test_bad_string (void)
xmlFreeNode (test_node);
}
template <class T>
using TestcaseVec = std::vector<std::pair<const char*, std::optional<T>>>;
template <class T>
const TestcaseVec<T> test_cases_common = {
{ "1" , 1 },
{ " \t 2 \t\v\n\f\r " , 2 },
{ " 0 " , 0 },
{ "123" , 123 },
{ "123z" , {} },
{ "a123" , {} },
{ " 23" , 23 },
{ "\t23" , 23 },
{ "44 " , 44 },
{ "44\t" , 44 },
{ " 56 " , 56 },
{ "\t56\t" , 56 },
{ "1 2" , {} },
{ "1 2 \t" , {} },
};
const TestcaseVec<gint64> test_cases_gint64 = {
{ "-44" , -44 },
{ "9223372036854775807" , 9223372036854775807 }, // maxint64
{ "9223372036854775808" , {} }, // overflow
{ "-9223372036854775807" , -9223372036854775807 }, // minint64
};
const TestcaseVec<guint> test_cases_guint = {
{ "-44" , {} }, // no negative allowed
{ "4294967295" , 4294967295 }, // max_uint
{ "4294967296" , {} }, // overflow
};
const TestcaseVec<guint16> test_cases_guint16 = {
{ "-44" , {} }, // no negative allowed
{ "65535" , 65535 }, // max_int16
{ "65536" , {} }, // overflow
};
const TestcaseVec<double> test_cases_double = {
{ "-3.5" , -3.5 },
{ ".5" , 0.5 },
{ "1e10" , 1e10 },
{ "-1e10" , -1e10 },
{ "1e-10" , 1e-10 },
{ "-1e-10" , -1e-10 },
{ "1.7976931348623158e+308", 1.7976931348623158e+308 }, // max_double
{ "1.7976931348623159e+308", {} }, // overflow
};
template <typename T>
static void
test_string_to_num (const char *func_name, const TestcaseVec<T>& test_cases,
const std::function<bool(const char*,T*)> &func)
{
auto do_test = [&](std::pair<const char*, std::optional<T>> test_pair)
{
T num = 0;
auto [test_str, test_int] = test_pair;
auto rv = func (test_str, &num);
// Output for debugging
// std::cout << "test_str = [" << test_str << "], test_int = ";
// if (test_int)
// std::cout << *test_int;
// else
// std::cout << "{}";
// std::cout << ", num = [" << num << "], rv = " << rv << std::endl;
do_test_args (rv == test_int.has_value(), func_name,
__FILE__, __LINE__, "with string %s", test_str);
if (rv)
do_test_args (num == *test_int, func_name,
__FILE__, __LINE__, "with string %s", test_str);
};
std::for_each (test_cases_common<T>.begin(), test_cases_common<T>.end(), do_test);
std::for_each (test_cases.begin(), test_cases.end(), do_test);
}
int
main (int argc, char** argv)
{
@ -86,6 +167,13 @@ main (int argc, char** argv)
fflush (stdout);
test_string_converters ();
test_bad_string ();
#if __cpp_lib_to_chars >= 201611L
// because older strtod code is more liberal and parses "123z" as 123.0
test_string_to_num<double> ("string_to_double", test_cases_double, string_to_double);
#endif
test_string_to_num<gint64> ("string_to_gint64", test_cases_gint64, string_to_gint64);
test_string_to_num<guint16>("string_to_guint16",test_cases_guint16,string_to_guint16);
test_string_to_num<guint> ("string_to_guint", test_cases_guint, string_to_guint);
fflush (stdout);
print_test_results ();
exit (get_rv ());