Tests

package com.example.nulllab;

import junit.framework.TestCase;

import org.junit.Test;


public class MainActivityTest extends TestCase {
    MainActivity mainActivity = new MainActivity();
    @Test
    public void testMin() {
        int a = 3;
        int b = 7;

        assertEquals(3, mainActivity.min(a,b));
    }

    @Test
    public void testMin2() {
        int a = -3;
        int b = 5;

        assertEquals(-3, mainActivity.min(a,b));
    }

    @Test
    public void testMax() {
        int a = 3;
        int b = 5;

        assertEquals(5, mainActivity.max(a,b));
    }

    @Test
    public void testMax2() {
        int a = -10;
        int b = 7;

        assertEquals(7, mainActivity.max(a,b));
    }
}

////////////////////////////

package com.example.nulllab;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public int min(int a, int b){
        return Math.min(a, b);
    }

    public int max(int a, int b){
        return Math.max(a, b);
    }

}