package com_github_leetcode;

import static org.hamcrest.CoreMatchers.equalTo;

import static org.hamcrest.MatcherAssert.assertThat;

import java.util.Collections;

import org.junit.jupiter.api.Test;

class NodeTest {

@Test

void constructor() {

Node node = new Node();

assertThat(node.val, equalTo(0));

assertThat(node.toString(), equalTo("[]"));

}

@Test

void constructor2() {

Node node = new Node(1);

assertThat(node.val, equalTo(1));

assertThat(node.toString(), equalTo("[]"));

}

@Test

void constructor3() {

Node node = new Node(1, Collections.singletonList(new Node(2)));

assertThat(node.val, equalTo(1));

assertThat(node.toString(), equalTo("[2]"));

}

@Test

void constructor4() {

Node node =

new Node(

1,

Collections.singletonList(

new Node(2, Collections.singletonList(new Node(3)))));

assertThat(node.val, equalTo(1));

assertThat(node.toString(), equalTo("[[3]]"));

}

}