//tstringm.cpp
//test for operators '+' and '==' as members of class String

#include "stringm.h"
#include <assert.h>

main() {
	String s1("System");
	String s2("New");
	String s3 = s1;
	String s4, s5;

	//member operators: left operand must be an object of class String

	//operator '=='
	assert(s1==s3);
	assert(s1=="System");

	//operator '+'
	s4 = s1 + s2;
	s5 = s1 + "Works";

	//making sure concatenation was OK 
	assert(s4=="SystemNew");
	assert(s5=="SystemWorks");


	//this will not invoke member operators: left operand is not a String object

	//String s5 = "Failure" + s1;
	//assert("System" == s1);


	return 0;
}