// Program to test solutions to problem #6 on the cse142 midterm, winter 2012.
// Fill in your solution to hasMidpoint, then compile and run the program.

import java.util.*;

public class Test6 {
    public static boolean hasMidpoint(int x, int y, int z) {
        // fill in your solution here
        // you can also rename the parameters above
    }

    // this is the sample solution
    public static boolean hasMidpoint2(int x, int y, int z) {
        return (2 * x == y + z || 2 * y == x + z || 2 * z == x + y);
    }

    public static void main(String[] args) {
        test(10, 12, 14);
        test(14, 10, 12);
        test(12, 10, 14);
        test(2, 10, 6);
        test(8, 8, 8);
        test(25, 10, -5);
        test(2, 3, 4);
        test(2, 3, 5);
        test(3, 1, 3);
        test(2, 4, 5);
        test(21, 9, 58);
        test(2, 8, 16);
    }

    public static void test(int x, int y, int z) {
        System.out.println("testing " + x + ", " + y + ", " + z);
        boolean result1 = false;
        boolean fail = false;
        try {
            result1 = hasMidpoint(x, y, z);
            if (result1 != hasMidpoint(x, z, y) ||
                result1 != hasMidpoint(y, x, z) ||
                result1 != hasMidpoint(y, z, x) ||
                result1 != hasMidpoint(z, x, y) ||
                result1 != hasMidpoint(z, y, x)) {
                System.out.println("fails with different parameter order");
                fail = true;
            }
        } catch (RuntimeException e) {
            System.out.println("threw " + e);
            fail = true;
        }
        boolean result2 = hasMidpoint2(x, y, z);
        System.out.println("correct = " + result2 + ", theirs = " + result1);
        if (!fail && result1 == result2) {
            System.out.println("PASS");
        } else {
            System.out.println("FAIL");
        }
        System.out.println();
    }
}