What does FFF mean in UNCLASSIFIED

FFF is a testing framework for writing end-to-end tests for Google Cloud Functions. It provides a way to test functions locally, in a simulated environment, without deploying them to a live Cloud Functions instance.

FFF offers several benefits for testing Cloud Functions:

• Local testing: Functions can be tested locally, without the need for deploying and managing a live Cloud Functions instance.
• Simulated environment: Tests run in a simulated environment that mimics the behavior of a live Cloud Functions instance.
• Fast feedback: Tests are executed quickly, providing rapid feedback during development and debugging.
• Isolation: Functions can be tested in isolation, without interference from other functions or external factors.

To set up FFF, follow these steps:

1. Install the FFF package using npm: npm install --save-dev @google-cloud/fake-function-framework
2. Create a test file for your function (e.g., test.js)
3. Import the FFF module and create a fake function: const { makeFunctionTester } = require('@google-cloud/fake-function-framework'); const functionTester = makeFunctionTester('myFunction');
4. Write test cases using the functionTester object.

To write tests with FFF, use the functionTester object to simulate function invocations:

• Use functionTester.call(data) to invoke the function with a given payload.
• Use functionTester.context to access the context object that is passed to the function.
• Assert on the results of the function invocation using standard testing frameworks like Jest or Mocha.

When testing asynchronous functions with FFF, use the async keyword in your test cases and await the results of the function invocation:

it('should test an asynchronous function', async () => {
  const result = await functionTester.call(data);
  expect(result).toEqual(expectedResult);
});