CatchTest.cpp

#include <iostream>
#include <string>
#include <memory>
using namespace std;

#define CATCH_CONFIG_MAIN
#include "catch.hpp"

TEST_CASE("std::string", "test")
{
	string s = "abcedf";

	REQUIRE(s.capacity() > 0);

	SECTION("TEST 1") {
		REQUIRE(s.length() > 0);
		REQUIRE(s[0] == 'a');
		
		string ss(move(s));
		CAPTURE(ss);

		CAPTURE(s.capacity());
		REQUIRE(s.capacity() == 0);	// ERROR
		REQUIRE(ss.length() > 0);
	}

	s = "ab";

	SECTION("TEST 2") {
		REQUIRE_THROWS([]{ throw "error"; }());
		REQUIRE_THROWS(s.at(5) = 'e');
		REQUIRE_NOTHROW(s.at(0) = 's');

	}	
}


TEST_CASE("std::shared_ptr", "test")
{
	auto sp = std::make_shared<string>("init");
	CHECK(sp);

	auto sp2 = sp;
	CHECK(sp.use_count() == 2);

	weak_ptr<string> wp = sp;
	CHECK(sp.use_count() == 2);

	SECTION("WeakPtr 1") {
		auto spp = wp.lock();
		CAPTURE(sp.use_count());
		CAPTURE(spp.use_count());
		CHECK(spp.use_count() == 3);
	}

	sp.reset();
	sp2.reset();

	SECTION("WeakPtr 2") {
		auto spp = wp.lock();
		CAPTURE(sp.use_count());
		CAPTURE(spp.use_count());
		CHECK(spp);		// ERROR
	}
	
}