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What is your debugging and testing process?

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Debugging and testing are essential skills for any programmer, as they help you find and fix errors, improve performance, and ensure quality in your code. However, debugging and testing can also be challenging, time-consuming, and frustrating, especially if you don't have a clear and systematic process. In this article, we'll share some tips and tools to help you debug and test your code more effectively and efficiently.

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1 Know your tools

The first step in your debugging and testing process is to familiarize yourself with the tools available to you and how to use them. Depending on your programming language, environment, and project, you may have different options for debugging and testing tools. Debuggers, for instance, allow you to inspect and modify the state of your code as it runs, such as setting breakpoints, stepping through the execution, and examining variables. Test frameworks are libraries that help you write and run automated tests for your code, such as unit tests, integration tests, and end-to-end tests. Additionally, code analysis tools can check your code for syntax errors, style issues, potential bugs, security vulnerabilities, and performance bottlenecks. It's important to know which tools suit your needs and preferences best and how to configure them into your workflow.

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James O'Flanagan

Engineer, teacher, & conservationist dedicated to inspiring future innovators. ??♂???♀???????????♂???
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??When setting up a #SoftwareDevelopment #Project, it is important to select the right #methodology to use for code #debugging, #validation, and #verification (V&V) ?Two main types of V&V: 1?? #InsideOut: takes the car mechanic approach; each #subsystem and code submodule is unit tested for functionality according to the Software Spec 2?? #OutsideIn: takes the #BlackBox approach; a given set of #inputs is run thru the old and new programs, and compares the results, which must meet #tolerance ??specs ??Choose the #method that best suits your #software and the #data it operates on ????Every #program is going to have a #different debugging #procedure ??Be ok with #change! #coding #debugging #process #engineering ??

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Navin Vishwakarma

Senior Software Engineer at Microsoft | Ex Amazon, Visa
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I compose clear and clear code with comments and documentation. I utilize a code editor or IDE with sentence structure highlighting, code completion, and mistake discovery highlights. I utilize investigating devices such as breakpoints, observe expressions, and support logs to examine the state and behavior of my code. I utilize testing instruments such as unit tests, integration tests, and end-to-end tests to confirm the usefulness and execution of my code. I utilize code examination apparatuses such as code scope, code quality, and code security to degree and progress the quality of my code. I utilize code survey instruments such as drag demands, code comments, and peer audits to urge criticism and recommendations from others.

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2 Write testable code

The second step in your debugging and testing process is to write code that is easy to test. Testable code follows good design principles such as modularity, readability, and maintainability. To achieve this, you should break down your code into small and coherent functions or classes with a single responsibility and clear inputs and outputs. Additionally, use descriptive and consistent naming conventions for your variables, functions, and classes. Furthermore, document your code with comments and docstrings to explain what it does and how to use it. Additionally, avoid hard-coding values or dependencies that may change or vary in different contexts. Instead, use configuration files, environment variables, or dependency injection. Finally, use version control and code review tools to track and improve your code quality.

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Fabio Entringer

Java Software Engineer @ ARHS Group
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The practice of writing clean code goes beyond testability, impacting the overall quality of the software. However, from my perspective, this process is more of a cultural aspect than merely technical. The pursuit of writing clean code requires a continuous commitment with software development teams, and should be internalized as a fundamental precept that guides the team.

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3 Write tests before or along with code

The third step in your debugging and testing process is to write tests for your code before or alongside writing the code itself, also known as test-driven development (TDD) or behavior-driven development (BDD). This practice has several advantages such as clarifying requirements before writing the code, catching errors early on, refactoring and optimizing with confidence, and improving code coverage and quality. Writing tests first or alongside code can help you avoid writing unnecessary or redundant code, reduce the cost and effort of fixing errors later, and ensure that your code meets the expectations of your users and stakeholders.

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Fabio Entringer

Java Software Engineer @ ARHS Group
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Fully embracing TDD can present initial challenges. However, as you navigate this transition, the benefits of TDD's shorter development cycles and improved testing efficiency become more and more evident.

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4 Run and review tests frequently

The fourth step in your debugging and testing process is to run and review your tests frequently. Every time you make a change to your code, you should run your tests or use a continuous integration (CI) tool to automate the process. Additionally, you should review the test results and reports for any failures, errors, warnings, or anomalies. To make this easier, you can use a test runner or test suite for organization and execution of tests. Additionally, code coverage tools measure how much of your code is tested by your tests and identify any gaps or blind spots. Test report tools generate and display the test results and statistics in an easy-to-understand way. Finally, debugging tools help you locate and fix the source of the test failures or errors by showing the stack trace, variable values, or code snapshots.

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5 Debug systematically and strategically

The fifth step in your debugging and testing process is to debug systematically and strategically. Debugging is the process of finding and fixing the root cause of a problem or a bug in your code, which can be tricky and tedious, yet rewarding and satisfying. To debug effectively, you must reproduce the problem or the bug consistently and reliably, and isolate the relevant factors that affect it. Then, you should form a hypothesis about the cause of the problem or the bug, and test it with experiments or evidence. Utilize the divide-and-conquer technique to narrow down the scope of the problem or the bug, and eliminate possible sources of error. Additionally, applying the rubber duck technique can help you explain the problem or the bug to yourself or someone else, potentially providing a new perspective or insight. Finally, use the scientific method to document your debugging process and findings, so you can learn from your mistakes and successes.

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Christian Feilberg Hansen

Software Developer
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When debugging, do not hesitate to deconstruct the code. In C# this could be deconstructing a linq query into individual operations. When working to solve problems which rarely occur, try to narrow down the conditions of the error and insert conditional breakpoints and then continue to narrow down the conditions of when the error occur.

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6 Seek feedback and assistance

The sixth and final step in your debugging and testing process is to seek feedback and assistance from others. You don't have to do it alone - you can benefit from the experience, knowledge, and advice of other programmers like your colleagues, mentors, or peers. To do this, you can utilize code review tools such as GitHub, GitLab or CodePen; debugging or testing tools like Visual Studio Code Live Share, CodeTogether or BrowserStack; question-and-answer sites such as Stack Overflow, Reddit or Quora; and communication or social media tools like Slack, Discord or Twitter.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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What is your debugging and testing process?

1

2

3

4

5

6

7

1 Know your tools

2 Write testable code

3 Write tests before or along with code

4 Run and review tests frequently

5 Debug systematically and strategically

6 Seek feedback and assistance

7 Here’s what else to consider

Programming

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What is your debugging and testing process?

1

2

3

4

5

6

7

1 Know your tools

2 Write testable code

3 Write tests before or along with code

4 Run and review tests frequently

5 Debug systematically and strategically

6 Seek feedback and assistance

7 Here’s what else to consider

Programming

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