package com.evsuite.abrp;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;

import org.junit.Test;

/** The policy_control value the CarPlay full-screen switch writes — pure JVM. */
public class PolicyControlTest {

    private static final String CP = "com.allgo.carplay.service";

    @Test
    public void unsetGainsOnlyOurEntryAndLosesItAgain() {
        String on = PolicyControl.withFull(null, CP);
        assertEquals("immersive.full=" + CP, on);
        assertTrue(PolicyControl.hasFull(on, CP));
        assertNull(PolicyControl.withoutFull(on, CP));
    }

    @Test
    public void otherEntriesSurviveOnAndOff() {
        String before = "immersive.status=com.a:immersive.full=com.b";
        String on = PolicyControl.withFull(before, CP);
        assertEquals("immersive.status=com.a:immersive.full=com.b," + CP, on);
        assertEquals(before, PolicyControl.withoutFull(on, CP));
    }

    @Test
    public void addingTwiceAddsOnce() {
        String once = PolicyControl.withFull(null, CP);
        assertEquals(once, PolicyControl.withFull(once, CP));
    }

    @Test
    public void onlyAnExactPackageCounts() {
        assertFalse(PolicyControl.hasFull("immersive.full=" + CP + ".other", CP));
        assertFalse(PolicyControl.hasFull("immersive.status=" + CP, CP));
        assertFalse(PolicyControl.hasFull(null, CP));
        assertFalse(PolicyControl.hasFull("", CP));
    }

    @Test
    public void removingWhatIsNotThereKeepsTheRest() {
        assertEquals("immersive.status=com.a", PolicyControl.withoutFull("immersive.status=com.a", CP));
        assertNull(PolicyControl.withoutFull(null, CP));
    }
}