16 questions for “Testing with Jest”

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Information Technology

16 questions in 1 technology

#	Question	Technology	Topic	Level
1	How do you use the built-in 'debugger' statement together with Node's --inspect flag to set breakpoints in code? Node.js › Debugging & Diagnostics	Node.js	Debugging & Diagnostics	Beginner
2	What does the node:assert module provide, and how does it differ in purpose from a full testing framework? Node.js › Core Node.js Modules	Node.js	Core Node.js Modules	Intermediate
3	How would you test that a Node.js application correctly sends emails without actually sending real emails during automated tests? Node.js › Email & Notifications	Node.js	Email & Notifications	Intermediate
4	How does Node.js's built-in test runner (node:test) compare to third-party frameworks like Jest or Mocha? Node.js › Advanced Node.js	Node.js	Advanced Node.js	Advanced
5	How would you write automated tests for GraphQL resolvers in Node.js, testing them independently of the full HTTP/schema execution layer? Node.js › GraphQL	Node.js	GraphQL	Advanced
6	What is Mongoose, and what does it add on top of the raw MongoDB Node.js driver? Node.js › Databases & ORMs (MongoDB/Mongoose, SQL/Sequelize)	Node.js	Databases & ORMs (MongoDB/Mongoose, SQL/Sequelize)	Beginner
7	What is Dependency Injection, and how is it typically implemented in Node.js given the language has no built-in DI container? Node.js › Architecture & Design Patterns	Node.js	Architecture & Design Patterns	Intermediate
8	What is a feature flag, and how would you implement one in a Node.js application to control a new feature's rollout? Node.js › Cloud & DevOps	Node.js	Cloud & DevOps	Intermediate
9	What is email template rendering, and how might you use a templating engine to generate dynamic HTML emails in Node.js? Node.js › Email & Notifications	Node.js	Email & Notifications	Intermediate
10	What is a pull request template, and how does it help standardize code review in a Node.js team's Git workflow? Node.js › Git & Project Management	Node.js	Git & Project Management	Intermediate

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