How to test through a mocked promise with mocha?

@dalton_moen 

In order to test code that uses a mocked promise with Mocha, you can use a library like Sinon to create a mock promise object. Here is an example of how to test a function that returns a promise using a mocked promise:

1. Install Sinon by running npm install sinon in your project directory.
2. In your test file, import Sinon and any other necessary modules:

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const sinon = require('sinon');
const assert = require('assert');
const yourFunction = require('./yourFunctionFile');

1. Create a mock promise object using Sinon:

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const mockPromise = sinon.fake.returns(Promise.resolve('mocked data'));

1. Replace the original function that returns a promise with the mock promise:

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sinon.replace(yourFunction, 'yourFunctionThatReturnsAPromise', mockPromise);

1. Write your test case using Mocha and assert the expected outcome:

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describe('YourFunction', function() {
  it('should return mocked data', function() {
    return yourFunction.yourFunctionThatReturnsAPromise().then((data) => {
      assert.equal(data, 'mocked data');
    });
  });
});

1. Restore the original function after the test is complete:

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sinon.restore();

1. Run your tests by executing mocha in your terminal.

This is just a basic example of how to test code that uses a mocked promise with Mocha. You can customize this approach based on your specific testing needs.