Implement unit test for CLI

[rsaz]

Description

Add unit tests in all modules.

Current Modules:

• application: app-container, app-factory
• common: color-service, package-resolver, project-config
• console: console
• container-module
• controller: base-controller
• decorator: scope-binding
• error: app-error, error-handler-middleware, report, status-code
• middleware: middleware-resolver, middleware-service
• provider: provider-manager, db-in-memory, dto-validator, env-validator, logger
• render

Suggested Pattern

• Inside of every module, add all unit tests in a folder called __tests__.
• Unit test file names should have the suffix .spec

Requirements

• [ ] all features must have tests;
• [ ] code coverage must pass.