Skip to content

Desi banjara

learn and grow together

  • How to take a screenshot in Google Nexus? Google
  • Google search console Google search console
  • ASP.NET MVC: How to show html data from database to front end view ASP.Net MVC
  • Sample Exam Questions 5: AZ-300: Microsoft Azure Architect Technologies AZ-300: Microsoft Azure Architect Technologies Exam
  • Azure Mobile Apps Azure Mobile Apps
  • What is Stored XSS? Stored XSS attacks
  • Interview question: What are the namespaces in C#.NET? C# development
  • C# Interview questions – How to get one/two year back from current date C# development

Test Driven Development (TDD)

Posted on March 2, 2023 By DesiBanjara No Comments on Test Driven Development (TDD)

Test-driven development (TDD) is a software development methodology that involves writing automated tests before writing any production code. In this approach, tests are created to define the behavior of the code, and then code is written to make those tests pass. TDD aims to improve the quality of software and reduce the risk of bugs by catching issues early in the development cycle.

The process of TDD typically involves the following steps:

  1. Write a failing test: In this step, the developer writes a test that describes the behavior they want to implement in the code. The test should fail initially because the code doesn’t exist yet.
  2. Write the code: Once the failing test is written, the developer writes the code that will make the test pass. The code should be minimal and focused on passing the test only.
  3. Run the test: After the code is written, the developer runs the test to verify that it passes. If the test passes, the developer can move on to the next test. If the test fails, the developer must modify the code until the test passes.
  4. Refactor the code: Once the test is passing, the developer can refactor the code to improve its design and make it easier to maintain. The tests should still pass after the refactoring is done.
  5. Repeat: The process is repeated for each new feature or behavior that needs to be implemented.

TDD can have many benefits for software development teams. Here are a few:

  1. Improved code quality: By writing tests first, developers are forced to think about the behavior they want to implement and design the code to meet those requirements. This can result in cleaner, more maintainable code.
  2. Reduced risk of bugs: Because TDD involves writing tests for each behavior, developers can catch issues early in the development cycle. This can reduce the risk of bugs making it to production.
  3. Better collaboration: TDD can encourage better collaboration between developers and other stakeholders in the development process. By defining requirements in the form of tests, everyone involved can have a shared understanding of what needs to be implemented.
  4. Faster feedback: TDD can provide faster feedback to developers. By running tests frequently, developers can catch issues early and make corrections quickly.
  5. Increased confidence: TDD can increase developers’ confidence in their code. By having a suite of tests that verify the code’s behavior, developers can be more confident that their code will work as expected.
Example of Test Driven Development (TDD)

Let’s say we want to create a class called “Calculator” that has a method called “Add” which takes two integers and returns their sum. In TDD, we would start by writing a test for this method before writing any production code.

Step 1: Write a failing test (C#)

using NUnit.Framework;

[TestFixture]
public class CalculatorTests
{

    [Test]
public void Add_WhenGivenTwoIntegers_ReturnsTheirSum()
    {
        // Arrange
Calculator calculator = new Calculator();

//

                    Act
int result = calculator.Add(2, 3);

// Assert
Assert.AreEqual(5, result);

          }
}

In this test, we are testing the Add method of the Calculator class with the input of 2 and 3, and expecting the output to be 5. Since we haven’t written any production code yet, this test should fail.

Step 2: Write the production code (C#)

public class Calculator
{
           public int Add(int a, int b)
{
            return a + b;
             }
}

In this code, we have implemented the Add method that takes two integers and returns their sum.

Step 3: Run the test

When we run the test, it should pass since we have written the production code to make it pass.

Step 4: Refactor the code (optional)

In this simple example, there is no need to refactor the code. But in more complex scenarios, we can refactor the code to improve its design and make it more maintainable.

Step 5: Repeat

We can repeat the above steps for each new feature or behavior that needs to be implemented. By following this approach, we can ensure that our code is thoroughly tested and meets the desired behavior.

Conclusion:

TDD is a software development methodology that can have many benefits for development teams. By writing tests first, developers can improve code quality, reduce the risk of bugs, collaborate better with others, get faster feedback, and increase their confidence in their code. If you are interested in adopting TDD in your development process, it is recommended to start with small projects and gradually build up experience and skill.

Test Driven Development (TDD) Tags:Example of Test Driven Development, TDD, Test-driven development

Post navigation

Previous Post: Agile Software development interview questions
Next Post: How to make your work meetings more productive?

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.



Archives

  • March 2023
  • February 2023
  • January 2023
  • December 2022
  • November 2022
  • March 2022
  • February 2022
  • June 2021
  • March 2021
  • January 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • July 2020
  • June 2020
  • April 2020
  • December 2018
  • September 2018
  • August 2018
  • July 2018
  • June 2018
  • May 2018
  • September 2017
  • July 2017
  • May 2017
  • April 2017
  • November 2013

Categories

  • Agile Software development
  • Agile Software development
  • Amazon AWS Certification Exam
  • Amazon EC2
  • Amazon ECS
  • Amazon Web Services
  • Amazon Web Services (AWS)
  • Apache Kafka
  • API development
  • Apple Mac
  • ASP.NET Core
  • ASP.Net MVC
  • ASP.NET Web API
  • Atlassian Jira
  • AWS DevOps Engineer Professional Exam
  • AWS Lambda
  • AZ-300: Microsoft Azure Architect Technologies Exam
  • Azure
  • Azure Active Directory
  • Azure AI and ML services
  • Azure App Service
  • Azure App Services
  • Azure Cognitive Services
  • Azure Compute
  • Azure Data and Storage
  • Azure Data Factory
  • Azure Data Lake Storage
  • Azure Databricks
  • Azure Databricks
  • Azure Defender
  • Azure Devops
  • Azure Functions
  • Azure IaaS
  • Azure Internet of Things (IoT)
  • Azure landing zone
  • Azure Logic Apps
  • Azure Machine Learning
  • Azure Machine Learning
  • Azure Migration
  • Azure Mobile Apps
  • Azure Networking – VNET
  • Azure Networking services
  • Azure Security
  • Azure Security
  • Azure security tools for logging and monitoring
  • Azure Sentinel
  • Azure Sentinel – Data connectors
  • Azure Serverless Computing
  • Azure SQL
  • Azure SQL Database
  • Azure Storage
  • Azure Stream Analytics
  • Azure Synapse Analytics
  • Azure Virtual Machine
  • Azure VNET
  • Business
  • C# development
  • C# interview questions with answers
  • ChatGPT
  • CI/CD pipeline
  • CISSP certification
  • Cloud
  • Cloud computing
  • Cloud services
  • COBIT
  • Command Query Responsibility Segregation (CQRS) Pattern
  • Content management system
  • Continuous Integration
  • conversational AI
  • Cross Site Scripting (XSS)
  • cyber breaches
  • Cybersecurity
  • Data Analysis
  • Database
  • DevOps
  • DevSecOps
  • DOM-based XSS
  • Domain-Driven Design (DDD)
  • Dynamic Application Security Testing (DAST)
  • Enterprise application architecture
  • Event-Driven Architecture
  • GIT
  • git
  • gmail api
  • Google
  • Google Ads
  • Google AdSense
  • Google Analytics
  • Google analytics interview questions with answers
  • Google Cloud Platform (GCP)
  • Google Docs
  • Google Drive
  • Google Maps
  • Google search console
  • Hexagonal Architecture Pattern
  • HTML
  • Information security
  • Infrastructure as a Service (IaaS)
  • Internet of Things (IoT)
  • Interview questions
  • IT governance
  • IT Infrastructure networking
  • IT/Software development
  • Javascript interview questions with answers
  • Layered Pattern
  • Leadership Quote
  • Life lessons
  • Low-code development platform
  • Microservices
  • Microservices
  • Microsoft
  • Microsoft 365 Defender
  • Microsoft AI-900 Certification Exam
  • Microsoft AZ-104 Certification Exam
  • Microsoft AZ-204 Certification Exam
  • Microsoft AZ-900 Certification Exam
  • Microsoft Azure
  • Microsoft Azure certifications
  • Microsoft Azure Log Analytics
  • Microsoft Cloud Adoption Framework
  • Microsoft Exam AZ-220
  • Microsoft Exam AZ-400
  • Microsoft Excel
  • Microsoft Office
  • Microsoft Teams
  • Microsoft word
  • Model-View-Controller (MVC) Pattern
  • Monitoring and analytics
  • NoSQL
  • OpenAI
  • OutSystems
  • Peer-to-Peer (P2P) pattern
  • Pipeline Pattern
  • PL-100: Microsoft Power Platform App Maker
  • PL-200: Microsoft Power Platform Functional Consultant Certification
  • PL-900: Microsoft Power Platform Fundamentals
  • Platform as a Service (PaaS)
  • Postman
  • postman
  • Project management
  • Python interview questions with answers
  • Ransomware
  • Reflected XSS
  • RESTful APIs
  • SC-100: Microsoft Cybersecurity Architect
  • Scrum Master Certification
  • Service-oriented architecture (SOA)
  • Software architecture
  • Software as a Service (SaaS)
  • SonarQube
  • Splunk
  • SQL
  • SQL Azure Table
  • SQL Server
  • Static Application Security Testing (SAST)
  • Stored XSS attacks
  • Table Storage
  • Test Driven Development (TDD)
  • Top technology trends for 2023
  • User Experience (UX) design
  • Version control system
  • WCF (Windows Communication Foundation)
  • Web development
  • WordPress
  • WordPress developer interview questions and answers
  • Zero Trust strategy



Recent Posts

  • List of most used git commands with explanation
  • Introduction to Git
  • WordPress developer interview questions and answers for experienced
  • WordPress – How to switch to Block Editor
  • ASP.NET Core – How to show total number of users in each country on google map?

Recent Comments

    • Domain-Driven Design (DDD) Domain-Driven Design (DDD)
    • Microsoft AI-900 Certification Exam Practice Questions -5 Microsoft AI-900 Certification Exam
    • Pipeline Pattern Pipeline Pattern
    • Deploy ASP.NET Core apps to Azure App Service ASP.NET Core
    • AWS DevOps Engineer Professional Exam Practice Questions – 7 AWS DevOps Engineer Professional Exam
    • SC-100: Microsoft Cybersecurity Architect SC-100: Microsoft Cybersecurity Architect
    • Azure Cognitive Services Azure Cognitive Services
    • Python interview questions with answers Python interview questions with answers

    Copyright © 2023 Desi banjara.

    Powered by PressBook News WordPress theme