Create a development testing environment

[nathanagez]

Is your feature request related to a problem? Please describe. The new testing workflow triggers some scripts to provide and delete resources in the cloud each time we run the tests. It can be time consuming when we are waiting for this pipeline to run during development phases.

Describe the solution you'd like A good solution should be to create a specific workflow that we can run when we are in development mode that allow the user to use an existing amplify project (locally) to run his tests instead.

Suggestions:

package.json

{
"scripts": {
    "postinstall": "node scripts/post-install.js",
    "test": "jest --detectOpenHandles --runInBand",
    "dev-test": "NODE_ENV=dev jest --detectOpenHandles --runInBand",
    "lint": "eslint .",
    "lint-fix": "eslint . --fix"
  },
}

jest.config.js

module.exports = {
  verbose: true,
  globalSetup: './scripts/setup.js',
  globalTeardown: process.env.NODE_ENV === 'test' ? './scripts/teardown.js' : null, // Jest automatically set NODE_ENV to test if it's not already set to something else.
};