import org.junit.Test;

import java.math.BigInteger;

import static java.math.BigInteger.ZERO;
import static java.math.BigInteger.valueOf;
import static org.junit.Assert.*;

public class Testtriangle {

    @Test
    public void test() {
        for (int i = 0; i < 100; i++) {
            testTriangle(RtriangleProvider.getRtriangle());
        }
    }

    private BigInteger getSquaredLength(int x1, int y1, int x2, int y2) {
        return valueOf((long)x1 - x2).pow(2).add(valueOf((long)y1 - y2).pow(2));
    }

    public void testTriangle(Rtriangle triangle) {
        BigInteger a2 = getSquaredLength(triangle.getApexX1(), triangle.getApexY1(),triangle.getApexX2(), triangle.getApexY2());
        assertNotEquals("a equals 0!", ZERO, a2);

        BigInteger b2 = getSquaredLength(triangle.getApexX1(), triangle.getApexY1(),triangle.getApexX3(), triangle.getApexY3());
        assertNotEquals("b equals 0!", ZERO, b2);

        BigInteger c2 = getSquaredLength(triangle.getApexX2(), triangle.getApexY2(), triangle.getApexX3(), triangle.getApexY3());
        assertNotEquals("c equals 0!", ZERO, c2);

        if (c2.compareTo(a2) > 0 && c2.compareTo(b2) > 0) {
            assertEquals("a^2 + b^2 != c^2", a2.add(b2), c2);
        } else if (b2.compareTo(a2) > 0 && b2.compareTo(c2) > 0) {
            assertEquals("a^2 + c^2 != b^2", a2.add(c2), b2);
        } else {
            assertEquals("b^2 + c^2 != a^2", c2.add(b2), a2);
        }
    }
}