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// This source code is released into the public domain.
#include <catch2/catch_test_macros.hpp>
import nihil.std;
import nihil.core;
import nihil.util;
namespace {
TEST_CASE("parse_size: empty value", "[nihil]")
{
using namespace nihil;
auto n = parse_size<std::uint64_t>("");
REQUIRE(!n);
REQUIRE(n.error() == nihil::errc::empty_string);
}
TEST_CASE("parse_size: basic", "[nihil]")
{
using namespace nihil;
SECTION ("bare number") {
auto n = parse_size<std::uint64_t>("1024").value();
REQUIRE(n == 1024);
}
SECTION ("max value, unsigned") {
auto n = parse_size<std::uint16_t>("65535").value();
REQUIRE(n == 65535);
}
SECTION ("max value, signed") {
auto n = parse_size<std::uint16_t>("32767").value();
REQUIRE(n == 32767);
}
SECTION ("overflow by 1, unsigned") {
auto n = parse_size<std::uint16_t>("65536");
REQUIRE(!n);
REQUIRE(n.error() == std::errc::result_out_of_range);
}
SECTION ("overflow by 1, signed") {
auto n = parse_size<std::int16_t>("32768");
REQUIRE(!n);
REQUIRE(n.error() == std::errc::result_out_of_range);
}
SECTION ("overflow by many, unsigned") {
auto n = parse_size<std::uint16_t>("100000");
REQUIRE(!n);
REQUIRE(n.error() == std::errc::result_out_of_range);
}
SECTION ("overflow by many, signed") {
auto n = parse_size<std::int16_t>("100000");
REQUIRE(!n);
REQUIRE(n.error() == std::errc::result_out_of_range);
}
}
TEST_CASE("parse_size: invalid multiplier", "[nihil]")
{
using namespace nihil;
auto n = parse_size<std::uint64_t>("4z");
REQUIRE(!n);
REQUIRE(n.error() == nihil::errc::invalid_unit);
n = parse_size<std::uint64_t>("4kz");
REQUIRE(!n);
REQUIRE(n.error() == nihil::errc::invalid_unit);
}
TEST_CASE("parse_size: multipliers", "[nihil]")
{
using namespace nihil;
auto sf = static_cast<std::uint64_t>(4);
SECTION ("k") {
auto n = parse_size<std::uint64_t>("4k").value();
REQUIRE(n == sf * 1024);
}
SECTION ("m") {
auto n = parse_size<std::uint64_t>("4m").value();
REQUIRE(n == sf * 1024 * 1024);
}
SECTION ("g") {
auto n = parse_size<std::uint64_t>("4g").value();
REQUIRE(n == sf * 1024 * 1024 * 1024);
}
SECTION ("t") {
auto n = parse_size<std::uint64_t>("4t").value();
REQUIRE(n == sf * 1024 * 1024 * 1024 * 1024);
}
SECTION ("p") {
auto n = parse_size<std::uint64_t>("4p").value();
REQUIRE(n == sf * 1024 * 1024 * 1024 * 1024 * 1024);
}
}
TEST_CASE("parse_size: multiplier overflow", "[nihil]")
{
using namespace nihil;
SECTION ("signed") {
auto n = parse_size<std::uint16_t>("64k");
REQUIRE(!n);
REQUIRE(n.error() == std::errc::result_out_of_range);
}
SECTION ("unsigned") {
auto n = parse_size<std::int16_t>("32k");
REQUIRE(!n);
REQUIRE(n.error() == std::errc::result_out_of_range);
}
}
TEST_CASE("parse_size: wide", "[nihil]")
{
using namespace nihil;
SECTION ("bare number") {
auto n = parse_size<std::uint64_t>(L"1024").value();
REQUIRE(n == 1024);
}
}
TEST_CASE("parse_size: wide multipliers", "[nihil]")
{
using namespace nihil;
auto sf = static_cast<std::uint64_t>(4);
SECTION ("k") {
auto n = parse_size<std::uint64_t>(L"4k").value();
REQUIRE(n == sf * 1024);
}
SECTION ("m") {
auto n = parse_size<std::uint64_t>(L"4m").value();
REQUIRE(n == sf * 1024 * 1024);
}
SECTION ("g") {
auto n = parse_size<std::uint64_t>(L"4g").value();
REQUIRE(n == sf * 1024 * 1024 * 1024);
}
SECTION ("t") {
auto n = parse_size<std::uint64_t>(L"4t").value();
REQUIRE(n == sf * 1024 * 1024 * 1024 * 1024);
}
SECTION ("p") {
auto n = parse_size<std::uint64_t>(L"4p").value();
REQUIRE(n == sf * 1024 * 1024 * 1024 * 1024 * 1024);
}
}
} // anonymous namespace
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