Files
3FS/tests/common/utils/TestScnLib.cc
2025-02-27 21:53:53 +08:00

51 lines
1.1 KiB
C++

#include <gtest/gtest.h>
#include <scn/scn.h>
#include <scn/tuple_return.h>
namespace hf3fs::test {
namespace {
TEST(TestScnlib, ScanString) {
std::string word;
auto result = scn::scan("Hello world!", "{}", word);
ASSERT_EQ(word, "Hello");
ASSERT_EQ(result.range_as_string(), " world!");
}
TEST(TestScnlib, ScanMultipleValues) {
int i, j;
auto result = scn::scan("123 456 foo", "{} {}", i, j);
ASSERT_EQ(i, 123);
ASSERT_EQ(j, 456);
std::string str;
auto ret = scn::scan(result.range(), "{}", str);
ASSERT_EQ(static_cast<bool>(ret), true);
ASSERT_EQ(str, "foo");
}
TEST(TestScnlib, ScanTuple) {
{
auto [r, i] = scn::scan_tuple<int>("42", "{}");
ASSERT_EQ(static_cast<bool>(r), true);
ASSERT_EQ(i, 42);
}
{
auto [r, i, s] = scn::scan_tuple<int, std::string>("42 foo", "{} {}");
ASSERT_EQ(static_cast<bool>(r), true);
ASSERT_EQ(i, 42);
ASSERT_EQ(s, "foo");
}
}
TEST(TestScnlib, ErrorHandling) {
int i;
auto result = scn::scan("foo", "{}", i);
ASSERT_EQ(static_cast<bool>(result), false);
ASSERT_EQ(result.range_as_string(), "foo");
}
} // namespace
} // namespace hf3fs::test