My code:

import org.junit.Test;
import static org.junit.Assert.*;

public class AListTest {
    @Test
    public void testEmptySize() {
        AList L = new AList();
        assertEquals(0, L.size());
    }

    @Test
    public void testAddAndSize() {
        AList L = new AList();
        L.addLast(99);
        L.addLast(99);
        assertEquals(2, L.size());
    }
    ...rest of testing
}

I have both junit 4.13.2 and also 5.9.1 jupiter included in my dependencies because I was confused about what package to put in my project stucture/dependencies.
I am following this class by the way and I am trying to follow the commands at this part of this video…
The commands I am trying to run are

javac *.java

-and also-

time java speedtestAList 

I have tried compiling with every permutation of those packages and none in my dependencies. I keep getting the same errors no matter what:

AListTest.java:1: error: package org.junit does not exist
import org.junit.Test;
                ^
AListTest.java:2: error: package org.junit does not exist
import static org.junit.Assert.*;
                       ^
SpeedTestSLList.java:1: error: package org.junit does not exist
import org.junit.Test;
                ^
AListTest.java:9: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class AListTest
AListTest.java:15: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class AListTest
AListTest.java:24: error: cannot find symbol
    @Test
....on like that through my file

I don’t know why testing is always so hard for me. I use C# normally and Xunit and moq give me so so much trouble too. I am so confused and stressed and overwhelmed honestly. Please can someone help me understand what I am doing wrong?

I have tried including different dependencies and using ai to troubleshoot. I have asked a couple friends who have been unable to help so far. I googled of course. I tried to rebuild the project every time I changed dependencies. I tried to “invalidated the caches” in intellij.