Chapter 6 Exercise Set 2: Doctest Exercises

We introduced doctest in Chapter 5 Extention: Introducing doctest. Review that section if you are not yet familiar with it.

In each of the following exercises, create a file with the following scaffolding and then modify it according to the given problem:

#define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
#include <string>
#include <doctest.h>
using namespace std;

// Your function goes here

TEST_CASE("...") {
    CHECK(...);
}

1. Create a file named test_reverse_string.cpp that takes a string, s, as an argument, and returns a new string which has the charaters from s in reverse order.

   TEST_CASE("reverse_string(s) returns s backwards") {
       CHECK(reverse_string("happy") == "yppah");
       CHECK(reverse_string("GHC!") == "!CHG");
       CHECK(reverse_string("The end.") == ".dne ehT");
   }