import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

public class SimpleTest {
    private static Binomial binomial;

    @BeforeClass
    public static void init() {
        binomial = new DynamicBinomial();
    }

    @Test
    public void test1() {
        Assert.assertEquals(2, binomial.binomialCoefficient(2, 1));
    }

    @Test
    public void test2() {
        Assert.assertEquals(1, binomial.binomialCoefficient(3, 3));
    }

    @Test
    public void test3() {
        Assert.assertEquals(21, binomial.binomialCoefficient(7, 5));
    }
}