Java/src/test/java/com/thealgorithms/searches/BinarySearch2dArrayTest.java

package com.thealgorithms.searches;

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

import java.util.*;
import org.junit.jupiter.api.Test;

public class BinarySearch2dArrayTest {

    @Test
    // valid test case
    public void BinarySearch2dArrayTestMiddle() {
        int[][] arr = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
        int target = 6;

        int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
        int[] expected = { 1, 1 };
        System.out.println(Arrays.toString(ans));
        assertEquals(1, ans[0]);
        assertEquals(1, ans[1]);
    }

    @Test
    // valid test case
    public void BinarySearch2dArrayTestMiddleSide() {
        int[][] arr = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
        int target = 8;

        int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
        int[] expected = { 1, 3 };
        System.out.println(Arrays.toString(ans));
        assertEquals(1, ans[0]);
        assertEquals(3, ans[1]);
    }

    @Test
    // valid test case
    public void BinarySearch2dArrayTestUpper() {
        int[][] arr = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
        int target = 2;

        int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
        int[] expected = { 0, 1 };
        System.out.println(Arrays.toString(ans));
        assertEquals(0, ans[0]);
        assertEquals(1, ans[1]);
    }

    @Test
    // valid test case
    public void BinarySearch2dArrayTestUpperSide() {
        int[][] arr = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
        int target = 1;

        int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
        int[] expected = { 0, 0 };
        System.out.println(Arrays.toString(ans));
        assertEquals(0, ans[0]);
        assertEquals(0, ans[1]);
    }

    @Test
    // valid test case
    public void BinarySearch2dArrayTestLower() {
        int[][] arr = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
        int target = 10;

        int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
        int[] expected = { 2, 1 };
        System.out.println(Arrays.toString(ans));
        assertEquals(2, ans[0]);
        assertEquals(1, ans[1]);
    }

    @Test
    // valid test case
    public void BinarySearch2dArrayTestLowerSide() {
        int[][] arr = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
        int target = 11;

        int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
        int[] expected = { 2, 2 };
        System.out.println(Arrays.toString(ans));
        assertEquals(2, ans[0]);
        assertEquals(2, ans[1]);
    }

    @Test
    // valid test case
    public void BinarySearch2dArrayTestNotFound() {
        int[][] arr = { { 1, 2, 3, 4 }, { 5, 6, 7, 8 }, { 9, 10, 11, 12 } };
        int target = 101;

        int[] ans = BinarySearch2dArray.BinarySearch(arr, target);
        int[] expected = { -1, -1 };
        System.out.println(Arrays.toString(ans));
        assertEquals(-1, ans[0]);
        assertEquals(-1, ans[1]);
    }
}