How to test globals with mocha.js?

@elise_daugherty 

To test globals with Mocha.js, you can use the global object to access and test global variables. Here's an example:

1. Create a test file (e.g., globals.test.js) and import Mocha, Chai, and the module you want to test.

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const assert = require('chai').assert;

describe('Globals', function() {
  it('should have a global variable', function() {
    assert.isDefined(global.myGlobalVariable);
  });

  it('should have a global function', function() {
    assert.isFunction(global.myGlobalFunction);
  });
});

1. Create a file where you define the global variables and functions (e.g., globals.js).

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global.myGlobalVariable = 'Hello, world!';

global.myGlobalFunction = function() {
  return 'This is a global function.';
};

1. Run the tests using Mocha in the terminal:

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$ mocha globals.test.js

This will run the tests in the globals.test.js file and check whether the global variable and function are defined as expected.