catch2/tests/SelfTest/IntrospectiveTests/Parse.tests.cpp

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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
#include <catch2/catch_test_macros.hpp>
#include <catch2/internal/catch_parse_numbers.hpp>
TEST_CASE("Parse uints", "[parse-numbers]") {
using Catch::parseUInt;
using Catch::Optional;
SECTION("proper inputs") {
REQUIRE( parseUInt( "0" ) == Optional<unsigned int>{ 0 } );
REQUIRE( parseUInt( "100" ) == Optional<unsigned int>{ 100 } );
REQUIRE( parseUInt( "4294967295" ) ==
Optional<unsigned int>{ 4294967295 } );
REQUIRE( parseUInt( "0xFF", 16 ) == Optional<unsigned int>{ 255 } );
}
SECTION( "Bad inputs" ) {
// empty
REQUIRE_FALSE( parseUInt( "" ) );
// random noise
REQUIRE_FALSE( parseUInt( "!!KJHF*#" ) );
// negative
REQUIRE_FALSE( parseUInt( "-1" ) );
// too large
REQUIRE_FALSE( parseUInt( "4294967296" ) );
REQUIRE_FALSE( parseUInt( "42949672964294967296429496729642949672964294967296" ) );
REQUIRE_FALSE( parseUInt( "2 4" ) );
// hex with base 10
REQUIRE_FALSE( parseUInt( "0xFF", 10 ) );
}
}