How to test Simple Cpp file?

Question

I wrote a simple program in Cpp but I have no idea what is the best approach to test this? Is there a certain format for unit testing like in Java?

#include <iostream>
#include <sstream>
#include <string>
#include <algorithm>
#include <vector>

using namespace std;
static vector<int> getAllFlipLocations(
        vector<int> & pancakesRepresentedByDiameter);

/**
 * Problem statement can be viewed at:
 * http://www.programming-challenges.com/pg.php?page=downloadproblem&probid=110402&format=html
 *
 * The following is a solution for the above problem.
 *
 * @author Quinn Liu (quinnliu@vt.edu)
 */
int main(void) {
    string stackOfPancakes;

    while (getline(cin, stackOfPancakes)) {
        istringstream is(stackOfPancakes);

        vector<int> pancakesRepresentedByDiameter;

        int diameterOfPancake;
        while (is >> diameterOfPancake) {
            pancakesRepresentedByDiameter.push_back(diameterOfPancake);
        }
        reverse(pancakesRepresentedByDiameter.begin(),
                pancakesRepresentedByDiameter.end());

        vector<int> orderOfFlipLocations = getAllFlipLocations(
                pancakesRepresentedByDiameter);

        // first print original stack of pancakes
        cout << stackOfPancakes << endl;

        // now print location within stack to flip pancakes to get a stack
        // of pancakes where the pancake diameters decrease as they move
        // from the bottom to the top
        for (int i = 0; i < orderOfFlipLocations.size(); i++) {
            if (i != 0) {
                cout << ' ';
            }
            cout << orderOfFlipLocations[i];
        }
        cout << endl;
    }
}

/**
 * Return the order of the locations to flip pancakes in the pancake stack.
 */
vector<int> getAllFlipLocations(vector<int> &pancakesRepresentedByDiameter) {
    vector<int> orderOfFlipLocations;

    vector<int>::iterator beginIndex = pancakesRepresentedByDiameter.begin();
    vector<int>::iterator endIndex = pancakesRepresentedByDiameter.end();

    for (int i = 0; i < pancakesRepresentedByDiameter.size(); i++) {
        vector<int>::iterator currentIndex = beginIndex + i;
        vector<int>::iterator maximumIndex = max_element(currentIndex,
                endIndex);

        // iterate through the stack of pancakes
        if (currentIndex != maximumIndex) {

            if (maximumIndex + 1 != endIndex) {
                // adds value of (maximumIndex - beginIndex + 1) to the end of the vector
                orderOfFlipLocations.push_back(maximumIndex - beginIndex + 1);
                reverse(maximumIndex, endIndex);
            }
            orderOfFlipLocations.push_back(i + 1);
            reverse(currentIndex, endIndex);
        }
    }
    orderOfFlipLocations.push_back(0);
    return orderOfFlipLocations;
}

C++ has no built-in method for generating/running unit tests, but a quick google search will turn up quite a selection of unit testing frameworks. — suszterpatt, Oct 19 '13 at 22:21
I like to use gookletest/googlemock, but there are a number of other testing framworks to use for c++. — πάντα ῥεῖ, Oct 19 '13 at 22:25

score 0 · Answer 1 · edited May 23 '17 at 10:25

0

No, out of the box C++ does not have any unit testing. Many IDEs do these days, though. Here is method to unit test in Visual Studio, and there is also frameworks out of which few worth mentioning are CppUnit, UnitTest++ or Google C++ Testing Framework. If you are looking for something more specific, you can check out older thread on the topic here.

edited May 23 '17 at 10:25

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answered Oct 19 '13 at 22:28

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How to test Simple Cpp file?

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