To install nvm, follow these steps:

1. Run brew install nvm
   
2. To check if nvm is successfully install, use nvm -v
   

To install node.js, follow these steps:

1. To install node.js (stable version), use nvm install <node_version>
   E.g., nvm install 14, this will install node.js version 14.X
   
2. To check if node.js is successfully install, use node -v
   

To install taiko, follow these steps:

1. Run npm install -g taiko
   
2. To check if taiko is successfully install, use taiko --version
   

To install gauge, follow these steps:

1. Run brew install gauge .
   
2. To check if gauge is successfully install, use gauge -v
   

To run functional tests, do the following:

1. Navigate to functional_tests folder using cd functional_tests.
   
2. To feed data for tests, run the sql/dataSeed.sql file in respective db.
   
3. Run using the command, gauge run specs/ --env <env-name> in default headless mode on dev environment.
   (Note: You can change environment by replacing --env value.)
   
4. To run specific spec file, gauge run specs/<SPEC-FILE> --env <env-name>
   
5. To run all specs parallely, gauge run specs/ --env <env-name> -p.
   
6. To run with headless mode off, in tests/AsrInitiative.js file const headless = process.env.headless_chrome.toLowerCase() === 'true';, replace true with false.
   

Note: - All environment related properties are in the functional_tests/env folder.
- Supported envs: local, dev, prod, test