Code Review
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This document discusses code review practices. It defines code review as the systematic examination of source code to identify defects, improve code quality, and share knowledge. Code review should occur after implementation but before testing. Reviews are done by peers to benefit from different perspectives and to spread knowledge across the team. Tips for effective code reviews include choosing the right person, reviewing the right amount of code, building checklists, providing positive feedback, and accepting reviews constructively. Code reviews can find more bugs than testing alone and improve code quality and maintainability.
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Code review
Code review is a process where one developer reviews another developer's code changes before they are submitted. It helps catch defects, improves code quality, and accelerates learning. There are different types of code review processes, including formal reviews, over-the-shoulder reviews, email reviews, pair programming, and tool-assisted reviews. Many large companies have implemented code review policies to improve their software development processes.
Git branching policy and review comment's prefix
This documentation illustrates-
1. Effective branching of the version control system, git.
2. When and how codes are fast-forwarded.
3. Effective code review to share the concerns.
4. Improvement of codes and merging, rebasing, etc.
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Recommended
Code review
Code review is a process where one developer reviews another developer's code changes before they are submitted. It helps catch defects, improves code quality, and accelerates learning. There are different types of code review processes, including formal reviews, over-the-shoulder reviews, email reviews, pair programming, and tool-assisted reviews. Many large companies have implemented code review policies to improve their software development processes.
Git branching policy and review comment's prefix
This documentation illustrates-
1. Effective branching of the version control system, git.
2. When and how codes are fast-forwarded.
3. Effective code review to share the concerns.
4. Improvement of codes and merging, rebasing, etc.
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Code review in TFS is an important concern. In this presentation we will learn now to implement best practices while doing code review with TFS.
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To Code Review or not to Code Review. How to do it better and what results can you excect? Answers inside.
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This document discusses best practices for code reviews. It provides guidelines for conducting effective code reviews, including reviewing no more than 400 lines of code at a time and taking 60-90 minutes for reviews. It also lists fundamentals to check like warnings, unused code, and naming conventions. Popular code review tools are mentioned. Conducting code reviews can improve code quality, catch bugs earlier, share knowledge, and mentor junior developers.
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The document discusses code review practices at the presenter's team. It covers basic concepts like broken window theory and technical debt. It then details the team's Git and Jira processes, coding standards using PHP CodeSniffer, and code review steps involving checking code, unit tests, and identifying inefficiencies and improvements. The concepts discussed will become obsolete when applications can self-improve by writing new code to meet business needs without human involvement.
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You want to improve your software skills. That’s a given. You may be a mentor or a manager who needs to improve the knowledge sharing among your software developers across different projects. Code Reviews can do just that while improving code quality in your projects. Code Review not only builds developer team spirit but also offers new ways to improve a software solution. You’ll walk away from this session with in-depth understanding of Code Review to strengthen your team.
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Code review tool usage helps to aggregate lots of useful information about any code change at any stage (static analysis, code review, rework, acceptance, integration into main branch). In this talk I’m going to demontrate how this information could be used for detailed analysis of development effectiveness and wastes detection. Based on mentioned analysis you could implement many improvements for your development process and then measure their success.
Code review in practice
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The document discusses improving code quality through effective code review processes. It outlines common coding mistakes like redundant code, long or deeply nested functions, large modules, poor comments, and hardcoding. It recommends following best practices like coding guidelines, centralized server communication, and the single responsibility principle. The document also discusses measuring and reducing code complexity, avoiding memory leaks, optimizing images, static code analysis, and profiling to improve code quality.
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Code-Review-Principles-Process-and-Tools (1)
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Beyond Unit Testing
This document discusses going beyond unit testing for web applications. It introduces several tools for testing different aspects of web applications, including Selenium IDE for browser-based testing, soapUI for web service testing, and JMeter for performance and load testing. These tools can be run from the command line as part of continuous integration with Jenkins. The document cites research that unit testing only detects an average of 25% of defects, while integration testing detects 45%, and code reviews have even higher effectiveness rates.
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How do we document code? A good solution is to create self-explanatory code; this somewhat eliminates the need to document the code. We still need some very basic documentation. Code comments are one form of documentation, that is often misused. This talk is about self-explanatory code, the documentation we need and code comment patterns and anti-patterns.
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How do we document code? A good solution is to create self-explanatory code; this somewhat eliminates the need to document the code. We still need some very basic documentation. Code comments are one form of documentation, that is often misused. This talk is about self-explanatory code, the documentation we need and code comment patterns and anti-patterns.
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You want to improve your software skills. That’s a given. You may be a mentor or a manager who needs to improve the knowledge sharing among your software developers across different projects. Code Reviews can do just that while improving code quality in your projects. Code Review not only builds developer team spirit but also offers new ways to improve a software solution. You’ll walk away from this session with in-depth understanding of Code Review to strengthen your team.
Code Review tool for personal effectiveness and waste analysis
Usually it is hard to analyze personal effectiveness and detect wastes in development process because developer’s work decomposition is not transparent and available for analysis. As a good sample of ineffective process imagine developer, who spends 1 day on task implementation and then reimplements it several times according to code review notes during next 2 days. Or another developer, who is waiting for code review during 2 days, switching context to other tasks, finally gets notes and switches back to initial task, trying to refresh all details in his head. And so on and so forth…
Code review tool usage helps to aggregate lots of useful information about any code change at any stage (static analysis, code review, rework, acceptance, integration into main branch). In this talk I’m going to demontrate how this information could be used for detailed analysis of development effectiveness and wastes detection. Based on mentioned analysis you could implement many improvements for your development process and then measure their success.
Code review in practice
This document provides an overview of code review practices. It discusses why code review is important to improve code quality, readability and maintainability. It describes different types of code review including over-the-shoulder, pair programming, automated and various time-based methods. Tools for facilitating code review are also presented, such as Review Board, Gerrit, Fisheye/Crucible and SmartBear CodeCollaborator. The goal of the document is to educate about best practices for conducting code reviews.
Improving Code Quality Through Effective Review Process
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2. Testing legacy code can be challenging as the code may have dependencies that are hard to isolate for testing purposes. Techniques to address this include extracting functions to new classes, replacing static dependencies with interfaces, and overriding classes to inject test dependencies.
3. While testing legacy code requires more initial work, it provides long-term benefits like reducing defects, empowering refactoring, and creating a safety net for future changes. The document provides a case study and
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You cant be agile if your code sucks
What is "Agile"?
Why would someone like to be agile?
What are the 3 pillars for agile software development?
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Are developer skills more important than languages, methods or frameworks?
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What code review checks are important for frontend projects?
What code review check should we automate?
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Some points based on the video "Code Review Best Practices" by Trisha Gee https://youtu.be/a9_0UUUNt-Y
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Are you a software developer who wants to improve your skills? Are you a team lead who enjoys mentoring other developers and improving both their and your coding skills? Or are you a manager who needs to improve the knowledge sharing among your software developers across different projects? Today we will be talking about how Code Reviews can do just this and also improve the code quality of your software projects in the process. Code Review can be a great way to get to know your fellow developers and even learn a different or sometimes better way to build a software solution. At the end of the session you will have a better understanding of the benefits of Code Review as well as some great tips to use in your team today.
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Peering into the white box: A testers approach to Code Reviews
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Code Review
- 1. Code Review Lukas Rypl Twitter: @LukasRypl 01/2014
- 2. What is code review? ● Systematic examination of source code ● Goals – – Better code quality – ● Identification of defects Sharing of knowledge Also known as code inspection
- 3. How does it fit in our process ● After implementation, before testing ● Dedicated task state in issue tracker ● Author assigns it to different person – We do not have any hierarchy, CR should be evenly shared among all team members
- 4. How should I do it? ● Notification from issue tracker ● Check related svn commits – (linked via refs #1234) ● See changes context in IDE ● Change reviewed code ● Add @TODO CR ● Add comments in issue tracker ● Assign it back to the author
- 5. Why we do it? Software testing alone has limited effectiveness - the average defect detection rate is only 25 percent for unit testing, 35 percent for function testing, and 45 percent for integration testing. In contrast, the average effectiveness of design and code inspections are 55 and 60 percent. (S. McConnell: Code Complete)
- 6. I believe that peer code reviews are the single biggest thing you can do to improve your code. (J. Atwood: http://www.codinghorror.com/blog/2006/01/code-reviews-just-do-it.html)
- 7. Quality
- 9. Better “Bus Factor” ● More people know the code http://www.amazon.com/Tomorrow-Heres-Replace-Toilet-Paper/dp/1607552647
- 11. Formal Code Review ● ● ● ● M. E. Fagan (IBM) Code preparation → code review acceptance criteria → committee with moderator → individual preparation for CR → review meeting → report with list of defects Group review finds only about 4% more defects than individual reviews [Cohen 2006] See http://en.wikipedia.org/wiki/Fagan_inspection
- 12. Tool-assisted review ● ● Github pull requests, Gerrit, Crucible, Review Board, SmartBear Code Collaborator … Comments attached to code, history
- 13. Email / VCS ● Please review the attached patch …. ● Better than nothing :)
- 14. Over-the-shoulder review ● Informal method ● Suitable for small snippets
- 15. Pair programming ● Is it 100% code review? ● Both are authors (inside the box) ● Third pair of eyes should do CR
- 16. Any drawbacks?
- 17. Watch out! Feeling too safe? http://www.bonkersworld.net/code-reviews/
- 18. Tips
- 19. Tip 1: Find the right person http://www.jasonawesome.com/2010/06/01/executing-a-php-code-review/
- 20. Tip 2: Right amount of code ● max 200 lines of code, 60-90 minutes http://smartbear.com/SmartBear/media/pdfs/best-kept-secrets-of-peer-code-review.pdf p.50
- 21. Tip 2: Right amount of code (cont.) ● Tradeoff – Smaller fragments hide systemic failures – Very hard to detect defective details in larger pieces
- 22. Tip 3: Build your checklist ● ● Know your weak spots
- 23. Tip 4: Be positive ● Review is about code ● It is not about people who wrote it ● Goal is overall improvement ● No blame
- 25. Tip 5: Accepting Code Review ● Do not worry, everyone makes mistakes ● Do not take it personally, it is only about code ● Say Thank you :) – maybe it saved you some unpleasant fixing of production code
- 26. More tips: ● ● ● ● ● If you don't understand the code, ask the author (and then write a comment/rename) Finding things that are missing is the hardest part (e.g. race condition) The sooner CR is done the better Explain why something is bad (provide reference) Use FindBugs, Sonar
- 27. References ● Jason Cohen (2006). Best Kept Secrets of Peer Code Review (Modern Approach. Practical Advice.). Available at Smartbearsoftware.com