Test-Driven Development (TDD) Methodology

A Test-Driven Development (TDD) Methodology is an agile software development methodology that involves test-driven development methodology test case creation before the actual test-driven development methodology software creation.

• AKA: TDD Methodology, Test-First Programming Methodology, Test-First Development Methodology.
• Context:
  • It can typically implement Test-Driven Development Methodology Cycle through test-driven development methodology red-green-refactor sequence.
  • It can typically produce Test-Driven Development Methodology Test Suite for test-driven development methodology code verification.
  • It can typically clarify Test-Driven Development Methodology Requirement before test-driven development methodology implementation begins.
  • It can typically reduce Test-Driven Development Methodology Code Refactoring need through test-driven development methodology upfront design.
  • It can typically contribute to higher Test-Driven Development Methodology Software Quality and test-driven development methodology code coverage.
  • It can typically enforce Test-Driven Development Methodology Design Principles through test-driven development methodology test constraints.
  • It can typically detect Test-Driven Development Methodology Software Regression through test-driven development methodology automated verification.
  • ...
  • It can often facilitate Test-Driven Development Methodology Continuous Integration through test-driven development methodology automated build processes.
  • It can often enable Test-Driven Development Methodology Continuous Delivery using test-driven development methodology deployment pipelines.
  • It can often improve Test-Driven Development Methodology Code Testability through test-driven development methodology modular design.
  • It can often support Test-Driven Development Methodology Pair Programming with test-driven development methodology collaborative workflows.
  • It can often accelerate Test-Driven Development Methodology Feedback Loop via test-driven development methodology immediate test results.
  • ...
  • It can range from being a Simple Test-Driven Development (TDD) Methodology to being a Complex Test-Driven Development (TDD) Methodology, depending on its test-driven development methodology project scope.
  • It can range from being a Developer-Focused Test-Driven Development (TDD) Methodology to being a Team-Wide Test-Driven Development (TDD) Methodology, depending on its test-driven development methodology adoption level.
  • It can range from being a Unit-Level Test-Driven Development (TDD) Methodology to being an Integration-Level Test-Driven Development (TDD) Methodology, depending on its test-driven development methodology testing granularity.
  • ...
  • It can have Test-Driven Development Methodology Productivity Impact for test-driven development methodology teams.
  • It can provide Test-Driven Development Methodology Documentation through test-driven development methodology executable specifications.
  • It can perform Test-Driven Development Methodology Technical Debt Reduction via test-driven development methodology incremental improvement.
  • It can integrate with Test-Driven Development Methodology Version Control System for test-driven development methodology code history tracking.
  • It can be Test-Driven Development Methodology Challenging Process during test-driven development methodology legacy system integration.
  • ...
• Examples:
  • Implementation approaches, such as:
    • Framework implementations, such as:
      • JUnit Implementation for test-driven development methodology Java applications.
      • NUnit Implementation for test-driven development methodology .NET applications.
      • PyTest Implementation for test-driven development methodology Python applications.
      • Mocha Implementation for test-driven development methodology JavaScript applications.
    • Process variations, such as:
      • Classic TDD Process with test-driven development methodology fine-grained tests.
      • Mockist TDD Process using test-driven development methodology mock objects.
      • Acceptance TDD Process focusing on test-driven development methodology customer requirements.
      • Inside-Out TDD Process starting with test-driven development methodology core components.
  • Industry adoptions, such as:
    • Organization implementations, such as:
      • Pivotal Labs (2021) with test-driven development methodology enterprise consulting.
      • Spotify Engineering (2019) using test-driven development methodology squad approach.
      • ThoughtWorks (2018) promoting test-driven development methodology technical practices.
    • Project applications, such as:
      • Mobile Application Development for test-driven development methodology app development.
      • Web Application Development for test-driven development methodology browser applications.
      • Embedded System Development for test-driven development methodology hardware interfaces.
  • ...
• Counter-Examples:
  • Waterfall Software Development Methodology, which performs software testing after development completion rather than before code implementation.
  • Code-First Development Methodology, which prioritizes functional implementation before creating verification tests.
  • Ad-Hoc Development Methodology, which lacks formal test strategy and proceeds without upfront test specification.
  • Big Bang Integration Methodology, which integrates system components simultaneously rather than testing individual units incrementally.
  • Cowboy Coding Methodology, which relies on developer intuition without structured test practices.
• See: Behavior-Driven Development (BDD) Methodology, Domain-Driven Design (DDD) Methodology, Extreme Programming (XP) Methodology, Unit Testing Methodology, Integration Testing Methodology, Test Case Design Methodology, Legacy Code Refactoring Methodology, Continuous Integration Methodology, Software Testing Methodology, Agile Software Development Methodology.

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References

2020

• (Wikipedia, 2020) ⇒ https://en.wikipedia.org/wiki/test-driven_development Retrieved:2020-5-18.
  • Test-driven development (TDD) is a software development process that relies on the repetition of a very short development cycle: requirements are turned into very specific test cases, then the code is improved so that the tests pass. This is opposed to software development that allows code to be added that is not proven to meet requirements.

    American software engineer Kent Beck, who is credited with having developed or "rediscovered" the technique, stated in 2003 that TDD encourages simple designs and inspires confidence.

    Test-driven development is related to the test-first programming concepts of extreme programming, begun in 1999, but more recently has created more general interest in its own right.

    Programmers also apply the concept to improving and debugging legacy code developed with older techniques.

2012

• (Hammond & Umphress, 2012) ⇒ Susan Hammond, and David Umphress. (2012). “Test Driven Development: The State of the Practice.” In: Proceedings of the 50th Annual Southeast Regional Conference. ISBN:978-1-4503-1203-5 doi:10.1145/2184512.2184550
  • QUOTE: Test-Driven Development has been a practice used primarily in agile software development circles for a little more than a decade now.

2011

• http://en.wikipedia.org/wiki/Test-driven_development#Requirements
  • QUOTE: Test-driven development requires developers to create automated unit tests that define code requirements (immediately) before writing the code itself. The tests contain assertions that are either true or false. Passing the tests confirms correct behavior as developers evolve and refactor the code. Developers often use testing frameworks, such as xUnit, to create and automatically run sets of test cases.

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