import static org.junit.jupiter.api.Assertions.*;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;

import org.junit.jupiter.api.Test;

class PrimitiveCalculatorTest {

    @Test
    void test() {
        List<Integer> result = new ArrayList<Integer>();
        result.add(1);
        assertEquals(result, PrimitiveCalculator.optimal_sequence(1));
    }

    @Test
    void test1() {
        assertEquals(3, PrimitiveCalculator.optimal_sequence(5).size() - 1);
    }

    @Test
    void test6() {
        assertEquals(2, PrimitiveCalculator.optimal_sequence(6).size() - 1);
    }

    @Test
    void test2() {
        assertEquals(14, PrimitiveCalculator.optimal_sequence(96234).size() - 1);
    }

    @Test
    void test2DimensionalArraySorting() {
        int a[][] = { { 2, 2 }, { 1, 3 }, { 3, 3 } };
        Arrays.sort(a, Comparator.comparingInt(arr -> arr[0]));
        assertEquals(1, a[0][0]);
    }
}