import org.junit.jupiter.api.Test;

import java.util.ArrayList;
import java.util.List;

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

class SILab2Test {
    private final SILab2 lab = new SILab2();

    public static List<String> generateList(String user){
        List<String> users=new ArrayList<>();
        users.add(user);
        return users;
    }

 @Test
    public void everyPath(){
        //1,2,15 false
        assertFalse(lab.function(null,null));

        //1,2,3,14,15 false
        assertFalse(lab.function(new User(null, null, null), null));

        //1,2,3,4,5.1,5.2,11,13,14,15 false
        List<String> users= generateList("Sanja");
        assertFalse(lab.function(new User("Martina", "pass", ""),users));

        //1,2,3,4,5.1,5.2 (6,8,10,5.3, 5.2), 11, 13,14,15 false
        assertFalse(lab.function(new User("Martina", "pass", "makomail"), users));

        //1,2,3,4,5.1,5.2 (6,7*,8,10,5.3, 5.2), 11, 12, 14, 15 false
        assertFalse(lab.function(new User("Martina", "pass", "ma.ko@mail"), users));

        //1,2,3,4,5.1,5.2 (6,7*,8,9*,10,5.3, 5.2), 11, 12 true
        assertTrue(lab.function(new User("Martina", "pass", "mako@mail.com"), users));

    }

    @Test
    public void multipleConditions(){
        //if (user.getUsername()!=null && user.getEmail()!=null && !allUsers.contains(user.getUsername()))
        // F && X && X
        assertFalse(lab.function(new User(null, null, null), null));
        // T && F && X
        assertFalse(lab.function(new User("Maki", "pass", null), null ));
        // T && T && F
        User user = new User("Maki", "pass", "mako@gmail.com");
        List<String> users = generateList(user.getUsername());
        assertFalse(lab.function(user, users));
        // T && T && T
        users = generateList("Emilija");
        assertTrue(lab.function(new User("Maki", "pass", "mako@gmail.com"), users));

        // if (atChar && user.getEmail().charAt(i)=='.')
        // F && X
        users = generateList("Sanja");
        assertFalse(lab.function(user = new User("Maki", "pass", "makogmail.com"), users));
        // T && F
        users = generateList("Simon");
        assertFalse(lab.function(user = new User("Maki", "pass", "mako@gmailcom"), users));
        // T && T
        users = generateList("Emilija");
        assertTrue(lab.function(new User("Maki", "pass", "mako@gmail.com"), users));

        // if (atChar && dotChar)
        // F && X
        users = generateList("Sanja");
        assertFalse(lab.function(user = new User("Maki", "pass", "makogmailcom"), users));
        // T && F
        users = generateList("Simon");
        assertFalse(lab.function(user = new User("Maki", "pass", "mako@gmailcom"), users));
        // T && T
        users = generateList("Sanja");
        assertTrue(lab.function(user = new User("Maki", "pass", "mako@gmail.com"), users));
    }
}