Code review
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dqpiCode 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.
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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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Hi I’m Cris, iOS Developer in KLabCyscorpions. In this post, I want to share with you my presentation on Code Review guidelines for iOS.
But, what is Code Review?
According to Wikipedia:
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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…
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1. The document discusses techniques for testing legacy production code that was not originally written with testability in mind. This includes unit testing, which allows verifying code works as expected in isolation, and writing tests before making changes to help preserve existing behavior.
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.
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I - Interface Segregation Principle.
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Hi I’m Cris, iOS Developer in KLabCyscorpions. In this post, I want to share with you my presentation on Code Review guidelines for iOS.
But, what is Code Review?
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“Code Review is systematic examination (often known as peer review) of computer source code. It is intended to find and fix mistakes overlooked in the initial development phase, improving both the overall quality of software and the developers’ skills. Reviews are done in various forms such as pair programming, informal walkthroughs, and formal inspections.”
Want to review code? Then First things first! For you to review code effectively, you need the basic know-how of reviewing code as both the developer and the reviewer. These slides will give some guidelines on how to think in both these roles when reviewing code.
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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.
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-Principles-Process-and-Tools (1)
The document discusses principles and best practices for code review. It describes the need for code review to improve quality and find bugs. It covers different types of code review including formal, informal, pair programming, and tool-assisted. The document provides guidance on the scope of a code review including goals, APIs, maintainability, security, integration and testing. It also discusses automated code review tools and common mistakes to check for such as exception handling errors.
Code Review
Code review is an inspection process where developers examine code samples to identify and fix defects. It helps ensure good code quality by allowing experienced developers to share knowledge with less experienced ones. Benefits include more stable products with fewer bugs due to improved code structure, standards and focus on new features rather than fixing issues. Issues that can arise include developers not following through on review comments, lack of buy-in, unrealistic expectations and peer fear. Various review types and tools can help address these issues.
Testing the untestable
1. The document discusses techniques for testing legacy production code that was not originally written with testability in mind. This includes unit testing, which allows verifying code works as expected in isolation, and writing tests before making changes to help preserve existing behavior.
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
Bye Bye Cowboy Coder Days! (Legacy Code & TDD)
Bye Bye Cowboy-Coder days! by Vytautas Dagilis.
„Working Effectively with Legacy Code“- one of the best books which talks about Unit testing and TDD. Presentation covers best practices listed in the book as well as shows which of them were successfully implemented in practice. You will find out how to commit changes and be sure that they work even without running and testing application itself.
Code Review: How and When
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.
Best Practices of Software Development
Folio3 is a software development company that focuses on designing custom enterprise, mobile, and social media applications. They have over 200 employees across offices in the US, Canada, Bulgaria, and Pakistan. The document outlines Folio3's areas of expertise and best practices for software development and databases, including using consistent naming conventions, short methods, clear comments, specific exceptions, and avoiding wildcard queries.
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The document discusses Test-Driven Development (TDD) with Ruby. It notes that the primary goal of TDD is specification and design, not just validation, by thinking through requirements and design before writing code. The TDD cycle involves adding a test, running all tests to see the new one fail, writing code to pass the test, refactoring code, and repeating. There are two levels of TDD: acceptance TDD which writes a single acceptance test and just enough code to pass it; and developer TDD which writes a single unit test and code to pass that test.
Solid principles
SOLID is a mnemonic device for 5 design principles of object-oriented
programs (OOP) that result in readable, adaptable, and scalable code.
S - Single Responsibility Principle.
O - Open Closed Principle.
L - Liskov Substitution Principle.
I - Interface Segregation Principle.
D - Dependency Inversion Principle.
Code Review: How and When
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.
Test Driven Development
TDD is a software development practice where tests are written before production code to define requirements. It follows three rules: 1) Write a test that fails without production code. 2) Write just enough production code to pass the test. 3) Refactor code without changing external behavior. This ensures code is properly tested and reduces bugs through frequent integration and refactoring enabled by the test suite. TDD results in testable, loosely coupled code and faster delivery times.
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Code Review tool for personal effectiveness and waste analysis
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Code reviews have been conducted since decades in
software projects, with the aim of improving code quality from
many different points of view. During code reviews, developers are supported by checklists, coding standards and, possibly, by various kinds of static analysis tools. This paper investigates whether warnings highlighted by static analysis tools are taken care of during code reviews and, whether there are kinds of warnings that tend to be removed more than others. Results of a study conducted by mining the Gerrit repository of six Java open source projects indicate that the density of warnings only slightly vary after each review. The overall percentage of warnings removed during reviews is slightly higher than what previous studies found for the overall project evolution history. However, when looking (quantitatively and qualitatively) at specific categories of warnings, we found that during code reviews developers focus on certain kinds of problems. For such
categories of warnings the removal percentage tend to be very high—often above 50% and sometimes 100%. Examples of those are warnings in the imports, regular expression, and type resolution categories. In conclusion, while a broad warning detection might produce way too many false positives, enforcing the removal of certain warnings prior to the patch submission could reduce the
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Partitioning Composite Code Changes to Facilitate Code Review (MSR2015)
Yida's presentation at MSR 2015!
Abstract—Developers expend significant effort on reviewing source code changes, hence the comprehensibility of code changes directly affects development productivity. Our prior study has suggested that composite code changes, which mix multiple development issues together, are typically difficult to review. Unfortunately, our manual inspection of 453 open source code changes reveals a non-trivial occurrence (up to 29%) of such composite changes.
In this paper, we propose a heuristic-based approach to automatically partition composite changes, such that each sub-change in the partition is more cohesive and self-contained. Our quantitative and qualitative evaluation results are promising in demonstrating the potential benefits of our approach for facilitating code review of composite code changes.
"Effektive Code Reviews" - Abendvortrag bei oose.de
Abendvortrag bei oose.de am 24.03.2016
Code Reviews sind heute in vielen Teams Standard. Sei es als allgemeine Vier-Augen-Regel, bei pull requests oder tatsächlich durch Teammeetings. All diese Methoden haben Vor- und Nachteile, und nur in den seltensten Fällen kann man damit tatsächlich effektiv Bugs finden. Aber meist werden Code Reviews genau mit diesem Ziel eingeführt: Fehler vermeiden! Der Vortrag zeigt verschiedene Methoden für effektive Code Reviews auf und erklärt, warum toolbasierte Code Reviews eigentlich erst ein zweiter Schritt sein sollten und stattdessen das mindset der Entwickler im Vordergrund stehen sollte. Praktische Tipps um die eigenen Code Reviews zu verbessern runden den Vortrag ab.
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EGit and Gerrit Code Review - Eclipse DemoCamp Bonn - 2010-11-16
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Partitioning Composite Code Changes to Facilitate Code Review (MSR2015)
Partitioning Composite Code Changes to Facilitate Code Review (MSR2015)
"Effektive Code Reviews" - Abendvortrag bei oose.de
"Effektive Code Reviews" - Abendvortrag bei oose.de
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Research and guidance for educing software development risk and cost while improving speed, quality and maintainability by applying review at all levels.
00.pdf
This document is the preface to the second version of the "Practical Software Testing - E-Book" by http://www.SoftwareTestingHelp.com. It thanks readers for their positive feedback on the first edition and the author's family for their support. It notes there have been significant changes in software testing and hopes readers will find this updated version useful.
Tester developer interaction
This document discusses the relationship between testers and developers and how to improve interaction between the two roles. It notes that while they sometimes have a "love-hate" relationship as they have different expertise and goals, they ultimately depend on each other to ensure high quality software. The document provides tips for when testers and developers should interact, such as during design, test case reviews, and bug fixing. It also recommends ways to build trust between testers and developers through clear communication and establishing processes for quality control.
Code review
This document discusses how to improve software quality through code reviews. It begins by stating the goals of code review, such as improving code quality, sharing knowledge, and educating developers. It then discusses classification of code reviews from less to more formal. The document outlines some best practices for code reviews, including having a reviewer and author, choosing reviewers strategically, and driving the review in different ways. It provides answers to common questions about organizing effective code reviews and leaves with tips, such as tracking reviewers, using checklists, and ensuring comfortable conditions for all.
Peer Code Review An Agile Process
Peer code review is one of the most effective ways to find defects – but is it agile? Because agile teams loathe heavy process, code review practices can easily fail. However, lightweight peer code review aligns well with the central tenets of agile—keeping feedback close to the point of creation, increasing team velocity by finding defects faster, and improving collective code ownership through frequent collaboration. Gregg Sporar shares recent research on code review practices and describes an agile code review approach—how much time to spend, which code to review, how much code to review at a time, how to set goals, the value of annotation, and more. After comparing four styles of code review—pair programming, over-the-shoulder, email, and tool-assisted—Gregg gives specific advice for creating review checklists and dealing with the social effects of code review in an agile environment.
Test-Driven Code Review: An Empirical Study
The study investigated how the order of presenting test code versus production code during code reviews influences the effectiveness of the review. It also examined developers' perceptions of test-driven code reviews.
For RQ1, 92 developers participated in a code review experiment comparing reviewing test code first versus production code first. Reviewing test code first led to finding more bugs in the test code but did not influence bugs found in production code.
For RQ2, interviews and a survey of 103 developers found that while some saw advantages to reviewing test code first, issues like low test code quality and the inability to choose review order were perceived problems. Adoption of test-driven reviews varied, with most using them sometimes.
Let's review it: What designers can learn from (code) review
What if designers approached collaboration and critique more like developers? Could it make us better designers, and could it better collaboration between designers and developers? Presented at Yggdrasil 2018 in Sandefjord, Norway
Software development slides
The document discusses the iterative software development process (SDP). It describes the main stages as analysis, design, implementation, testing, documentation, evaluation, and maintenance. At each stage, specific tasks are undertaken, such as creating requirements in analysis, designing algorithms and diagrams in design, coding in implementation, testing in testing, creating user guides in documentation, and fixing bugs in maintenance. People involved include clients, analysts, project managers, and programmers. Documents created include specifications, algorithms, test reports, guides, and evaluation/maintenance reports.
The Professional Programmer
Unit testing is important for writing reliable code. Tests should exercise code modules to validate functionality. Source code control systems like Git help teams collaborate and manage code versions. Continuous integration runs tests on all new code to quickly detect errors. Coding standards like Perl Best Practices improve code quality and maintenance. Agile methods like Scrum emphasize frequent delivery of working software through short iterations and customer collaboration.
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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Code review
- 1. Code Review