test1.cpp

/*
 * Renzoku - Re-build, re-test, and re-run a program whenever the code changes
 * Copyright (C) 2015  Colton Wolkins
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */
#define CATCH_CONFIG_MAIN  // This tells Catch to provide a main() - only do this in one cpp file
#include "catch.hpp"

unsigned int Factorial( unsigned int number ) {
	return number > 1 ? Factorial(number-1)*number : 1;
	//return number <= 1 ? number : Factorial(number-1)*number;
}

TEST_CASE( "Factorials are computed", "[factorial]" ) {
	CHECK( Factorial(1) == 2 );
	REQUIRE( Factorial(0) == 1 );
	REQUIRE( Factorial(1) == 1 );
	REQUIRE( Factorial(2) == 2 );
	REQUIRE( Factorial(3) == 6 );
	REQUIRE( Factorial(10) == 3628800 );
	REQUIRE_FALSE( Factorial(1) == 2 );
}