To create a Node.js project for web testing using Selenium WebDriver, assert, and Mocha, you can follow these steps:

1. Make and change to project directory: Run the following commands from your commandline

   mkdir node-webtest-basic
   cd node-webtest-basic

2. Initialize a Node.js project: Run the following command to create a new Node.js project and initialize it with a package.json file:

   npm init -y

3. Install the necessary packages: Install Selenium WebDriver, assert, and Mocha using the following command:

   npm install selenium-webdriver assert mocha --save-dev

4. Create the project structure: You can organize your project with the following structure:

   ├── test
   |   └── checkboxes_test.js
   ├── .gitignore
   └── package.json
   

   Create the test directory and a checkboxes_test.js file inside it.

5. Edit your checkboxes_test.js file: In your test_checkboxes.js file, add the following code to create a basic test that visits the given webpage and asserts that the two checkboxes have opposite states:

   // test/checkboxes_test
   
   const { Builder, By, Key, until } = require('selenium-webdriver');
   const assert = require('assert');
   const { describe, it, afterEach } = require('mocha');
   
   let driver;
   
   describe('Checkbox Test Suite', function () {
     this.timeout(30000); // Set timeout to 30 seconds
   
     beforeEach(async function () {
       driver = await new Builder().forBrowser('chrome').build();
     });
   
     afterEach(async function () {
       await driver.quit();
     });
   
     it('should have opposite states for checkboxes', async function () {
       try {
         await driver.get('https://the-internet.herokuapp.com/checkboxes');
   
         const checkboxes = await driver.findElements(By.css('input[type="checkbox"]'));
   
         // Assert that there are two checkboxes on the page
         assert.strictEqual(checkboxes.length, 2, 'Expected two checkboxes on the page');
   
         // Assert that the two checkboxes have opposite states
         const state1 = await checkboxes[0].isSelected();
         const state2 = await checkboxes[1].isSelected();
         assert.notStrictEqual(state1, state2, 'Expected checkboxes to have opposite states');
       } catch (error) {
         console.error('Test failed:', error.message);
         throw error;
       }
     });
   });

6. Run the test: Add/replace a script entry in your package.json file for running the test:

   "scripts": {
     "test": "mocha"
   }

   Then run the test using the following command:

   npm test

This set of commands and steps will help you set up a basic Node.js project for web testing using Selenium WebDriver, assert, and Mocha, and create a simple test for the specified webpage.