Java / Cook Your Lasagna

Hello, i think there is a bug in the test file for “Cook Your Lasagna” exercise in the Java stack, i tried to test this code :

public class Lasagna {
    public int expectedMinutesInOven() {
        return 40;
    }
    public int remainingMinutesInOven(int time) {
        return expectedMinutesInOven() - time;
    }
    public int preparationTimeInMinutes(int layers) {
        return layers * 2;
    }
    public int totalTimeInMinutes(int layers, int time) {
        return preparationTimeInMinutes(layers) + time;
    }
}

but i’m getting this error :

We received the following error when we ran your code:
./src/test/java/LasagnaTest.java:1: error: package org.junit does not exist
import org.junit.Test;
                ^./src/test/java/LasagnaTest.java:9: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:22: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:27: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:40: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:45: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:58: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:63: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:68: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:81: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTest./src/test/java/LasagnaTest.java:86: error: cannot find symbol
    @Test
     ^
  symbol:   class Test
  location: class LasagnaTestNote: ./src/test/java/utils/ReflectionProxy.java uses unchecked or unsafe operations.Note: Recompile with -Xlint:unchecked for details.

thanks for your help.

How are you executing the tests?

Is it different from Testing on the Java track | Exercism's Docs

i just clicked on the button “Run the test”