Say it like this
- We follow TDD principles on this project
- Let's practice TDD for the new feature
- TDD helps us maintain code quality
Use it at work
Process
- We use TDD: write the test first, then the code.
- Let's try TDD on this new module.
Explaining
- With TDD, you go red, green, refactor.
- TDD helps me design better APIs.
In an interview
- Do you practice TDD?
- How strict is TDD on your team?
Don't say this
TDD means writing tests BEFORE the code, not after. Writing tests after is called testing, not TDD.
Practice
Try it
4 quick exercises
1. Your team wants to improve code quality. Which statement sounds most natural?
2. We will _______ TDD for all new features starting next sprint.
3. Which sentence uses TDD incorrectly?
4. Rewrite this sentence using TDD: 'We write tests after we finish the code to make sure it works.'
Say it out loud
Phrase 1 of 3
"We follow TDD principles on this project"
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More about TDD
Real examples(3)
- in a standup
"Yesterday I wrote tests for the login feature using TDD before implementing the actual code."
- in a code review
"I notice you didn't follow TDD here. Can you add tests before we merge this?"
- in a team meeting
"If we adopt TDD company-wide, we should see a significant reduction in production bugs."
More mistakes(2)
Handle with care. TDD is sometimes confused with just testing code. It is specifically about writing tests first, before writing the feature code.
- ✕TDD is just about testing your code.✓TDD is a development methodology where tests drive the design and implementation.
TDD is more than testing; it is a complete development approach that influences how you design and structure code.
- ✕We do TDD by running our test suite once a week.✓We practice TDD by writing a failing test, then writing code to pass it, then refactoring.
TDD requires continuous, immediate feedback from tests as you code, not periodic testing.
Other forms(3)
- TDD noun
"TDD is an industry standard practice in many tech companies."
- TDD practice noun
"Our TDD practice has reduced bugs by 40 percent this quarter."
- TDD-driven adjective
"We use a TDD-driven approach to ensure high code quality."
Often used with(5)
- practice TDD · means to use TDD methodology in your development process
- follow TDD · means to adhere to TDD principles and workflows
- adopt TDD · means to implement TDD as a team or organizational standard
- TDD cycle · refers to the red-green-refactor workflow
- TDD approach · means using TDD as a development strategy
Similar words(2)
- test-first development · More explicit but less commonly used than TDD
- test-driven design · Emphasizes the design aspect; TDD is more commonly used
Opposites(3)
- ad hoc testing
- manual testing
- test-last approach
Questions(5)
- What does TDD stand for?
- TDD stands for Test-Driven Development. It is a software development methodology where developers write automated tests before writing the code that the tests verify.
- What is the TDD cycle?
- The TDD cycle is also called red-green-refactor. First, write a test that fails (red). Second, write minimal code to make the test pass (green). Third, improve the code without changing its behavior (refactor). Then repeat for the next feature or requirement.
- Why is TDD important in software development?
- TDD is important because it improves code quality, reduces bugs in production, makes refactoring safer, provides documentation through tests, and often leads to better software design. It also gives developers confidence when modifying code.
- Is TDD used in real tech companies?
- Yes, TDD is widely used in tech companies, especially those following Agile methodologies. Many companies like Google, Amazon, and Microsoft encourage or require TDD practices. However, adoption varies by team and project.
- How do you use TDD in a sentence at work?
- You can say: We practice TDD on this project. Let us follow TDD principles. We need to adopt TDD to improve quality. Can you write the test first using TDD?



