Victor Ferreira

Diogo Baeder As it turns out, after our discussion about TDD, I decided to read the book again and recap my knowledge about the topic. I've always had the feeling that unit tests, which test every class individually, can be problematic and quite coupling. They make refactoring harder since the tests tend to break when you change something. The thing is, TDD requires a more behavior-driven style of testing, focusing on testing the features of your code over the public API. The idea is to avoid coupling your tests to your implementation, allowing for refactoring without changing the tests. Tests should only be changed if the feature itself changes. By adhering to behavior-driven development (BDD) principles, TDD encourages writing tests that verify the expected behavior of the system rather than the specific implementation details. This approach ensures that your tests remain robust and meaningful even as the underlying code evolves. Instead of creating tests for each class, which can lead to brittle tests tightly coupled to the implementation, BDD emphasizes testing the interactions and outcomes from the user's perspective. This way, you achieve a more flexible and maintainable codebase. When refactoring, the behavior remains consistent, and the tests continue to validate the correct functionality. This shift from a class-based unit test approach to a behavior-driven testing approach aligns with the core principles of TDD and results in a more resilient testing strategy.

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New video published about Standalone Components in Angular - in Portuguese. I'm starting a new playlist showcasing Modern Angular. - Nova playlist no canal sobre Angular Moderno! Aprenda sobre standalone components no angular, e como migrar uma aplicação com angular clássico para angular moderno. https://lnkd.in/eXd-JFxq #angular #angularModerno #modernAngular

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Filipe Berti will be speaking at the DevOps & Agile Summer Retreat! He will talk about "Pre-Mortem: What could go wrong?" Moments of upcoming releases or challenges usually come at a faster pace closer to the date. They’re usually events for which teams try to prepare in advance, amidst growing expectations from stakeholders and users. For smaller teams, uncertainties and the need to plan for extra work may sound overwhelming. For larger teams, there might be multiple perspectives or even disagreements on what the biggest concerns are. Yet, on a company level, assessing and mitigating risks leads to cost efficiency and improved customer experience. In this session, we will: • practice the Pre-Mortem in smaller groups with a project case brought by you • learn 3 additional free toolings: ReFraming Beliefs, BigOnion of Contexts and Insightful This workshop is about sharing my practical experience combining toolings I relied on several times to unlock teams onto their paths to success. We're honoured to have you 🎉

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Would you like to learn how our 15,000+ engineers at MercadoLibre securely and resiliently manage millions of internal requests? We use FURY! Check the full article on Medium: https://lnkd.in/dkZHgp5D #PlatformEngineering #DeveloperExperience #OrgulloMELI #EstoesMELI

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The signal effect is going to change again in #Angular 19. It's important to remember that effects are still in developer preview, so they are not suitable for production code. https://lnkd.in/d8zX-7BH

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The power of OPCache and tuning PHP-FPM settings. Or how do same task's with 2.5x less CPU and 5x less RAM. #softwaredevelopment #softwareengineer #freelancer #phpdeveloper #phpdevelopment #phpframework

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Last Friday, I had the opportunity to participate in the Floripa Web3 tech event, held at Sapiens Park. This impressive venue provided the perfect environment for professionals, entrepreneurs, and technology enthusiasts to come together and exchange ideas. The event was truly remarkable, offering a diverse range of insightful topics and valuable content. One aspect of particular significance was the focus on security in the realm of web3. With the increasing importance of decentralized systems, understanding the fundamentals of web3 security is essential for anyone involved in the field. During the event, experts delved into the intricacies of web3 security, providing valuable insights on best practices and emerging trends. Exploring topics such as cryptography, smart contract vulnerabilities, and secure development techniques, attendees gained a deeper understanding of the challenges and solutions within this dynamic landscape. Overall, the Floripa Web3 tech event delivered a fantastic experience, offering a comprehensive dive into the realm of web3 security and the latest advancements in decentralized technologies. By bringing together industry leaders and passionate individuals, this event played a vital role in driving innovation and speeding up the adoption of web3 solutions. #blockchain #web3 #developer #rust #tech

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Explicando as diferenças entre EntityFramework e ASP.NET Core Identity. 🧑🏿‍💻

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Due to the specificities of frontend applications, modelling the domain in this context has always been challenging. Ranging from generating aggregate ids and designing their lifecycles, to the need to represent invalid states, to context mapping when communicating with vendor APIs, there are a series of factors to be considered when modelling the domain. In this talk, I will show you these specificities and how to tackle everyday frontend complexities using canonical DDD concepts, designing new bounded contexts just for the frontend, while still embracing modern frontend approaches. Watch https://bit.ly/3XzGaOR and join us again next year in Antwerp!

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It was a good experience to review concepts and learn new ones. Some of the topics addressed in this boot camp were: Object-oriented programming Testing and dependency management in Java projects NoSQL and SQL databases for backend developers Spring Boot Working with agile teams

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Day 23 of #100DaysOfCode ! 🔥 23/100 [ENG] Turtle Cross Game! 🐢🛣👾 [PT-BR] Jogo da Travessia da Tartaruga 🐢🛣👾 https://lnkd.in/d5PvwUT5 #OpenToWork #100DaysOfCode  #Python  #DrAngelaYu  #WorkHard #OpenToWork #PythonDeveloper #SoftwareDevelopment #Coding #TechTalent #HireDevelopers #PythonForBusiness #Data #DataAnalysis #Pandas #TechHiring #internship #trainee #DevCommunity 🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀🚀

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Currently, I did a project using Java and React. This project is simply, only to realize a math operation or generate a random string. The ideia is show how I built the backend and front-end, with JWT authentication, logs and project architecture, in addition, create a docker image to boths. The repository from backend: https://lnkd.in/dmjNvPK4 The repository from front-end: https://lnkd.in/dBtPSpqH To facilitate, I did the deploy in AWS and I'll let there for some days. You can use the project access this link: http://54.236.117.98:3000/ There are 10 users with username: [email protected] [email protected] [email protected] ... [email protected] All with the password = "password"

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Last week, our company flew to Porto, Portugal🌴 for five days, and for three of those days, we attended the NDC { Porto } Conference for Software Developers. Each day featured around six speakers, with each session lasting an hour. As a developer, it was an incredible experience to hear about the latest technologies and methodologies. AI is advancing at a rapid pace, so it made sense that many sessions focused on AI tools and applications. One of my favorite talks was "AI-Powered E2E UI Testing: Faster Creation, Easier Maintenance" by Daniel Ostrovsky, which introduced promising new ways to speed up E2E testing using OpenAI. I also attended a fascinating session on Web Hacking by Espen Sande Larsen, where I was blown away by how quickly a web app can be compromised if you’re not careful about which packages you use. On Thursday evening, we enjoyed an amazing closing session filled with funny stories about development. For me, it was one of the best stand-up presentations I’ve attended—though people from non-IT backgrounds might see it differently! 🫣 Aside from the conference, it was great to spend time in Portugal with my team, because I work remotely from Copenhagen. Since many of us attended different sessions, it was valuable to share what we learned and discuss various insights together. Exploring Porto with my colleagues was also a fantastic experience. Even though we were introduced to many new technologies and methodologies, we will try to implement some of these into our product. Personally, I came away with a lot of great ideas for my own projects, and I’m eager to start working on them. In fact, I’m getting ready to release my first EDA QBus Package to NPM and hope to wrap up some of my other personal projects soon! This conference was a great experience for me, especially as it was my first time attending an event like this. It was also my first visit to Portugal, and Porto, with its amazing cuisine and beautiful atmosphere, did not disappoint! 🙌 Huge thanks to BNR A/S for the opportunity! #NDCPorto #Conferences #SoftwareDeveloperConference #Porto #Portugal #ndcporto #ndc

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Minishell Project | Do you know what a command line interface (CLI) is? A CLI is a text-based interface that allows users to interact directly with a computer by entering commands to perform tasks on the operating system efficiently. As part of the 42 Porto curriculum, we had to implement our own command line, replicating the behavior of bash. And I'm very proud to share that this week, Hellom Mendes and I successfully delivered our beautiful (and colorful) Minishell, marking the end of Rank3 on our 42 path. Developing Minishell was a profound exploration into the world of programming. Through this project, I deepened my knowledge of C Programming and gained insights into the fundamental concepts behind a shell. Working with multi-processes, signal management, redirections, input parsing, expansions, and more, this experience heightened my understanding of the interaction between a user and the operating system. And it stands as one of the most complex projects I've ever coded. Watch the short video below for a quick overview of the project, featuring input ("<" and "<<") and output (">" and ">>") redirections, along with the integration of built-ins like cd, exit, and echo. Explore pipe behavior with multi-processes and the creation, application, and expansion of environment variables. Our code can be found at https://lnkd.in/da2pfYQh Where you can also access the documentation and a set of tests you may try on the code.

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𝗕𝗹𝗼𝗴 𝗽𝗼𝘀𝘁 𝗮𝗹𝗲𝗿𝘁! 📣 https://lnkd.in/dgp-Akgb This one is a love letter to language and translation as an act of (re)creation 💌 The idea is to deploy 𝘕𝘰 𝘓𝘢𝘯𝘨𝘶𝘢𝘨𝘦 𝘓𝘦𝘧𝘵 𝘉𝘦𝘩𝘪𝘯𝘥 (#NLLB for short), a human-centered translation model from AI at Meta with a focus on underrepresented languages, using Amazon SageMaker Serverless Inference (https://lnkd.in/dcK9YVbP, have you tried it before? let me know in the comments section!). Stick to the end because the Serverless Inference Benchmarking Toolkit (#SIBT, https://lnkd.in/dPVKQtKj) also makes an appearance. / PS: Give it a thumbs up! 👍 cc'ing Ana Rita V. and Rodrigo Hernandez because you share my fascination with language.

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I'm happy to share that last week I finished the rank3 of my common core at 42 Lisboa! To complete this stage of my journey I had to do the Philosophers and Minishell projects, as well as an exam in which I had to do a program called Get Next Line. Minishell 🖥️ To date, Minishell is the biggest project I've had to do at school. Unlike the name “Mini” shell, this project has nothing diminutive about it. It consists of replicating how bash works, which is a program that performs tasks. Instead of clicking buttons, bash receives commands, and each command has a corresponding function.  In carrying out this project I developed my project organization skills and deepened my knowledge of processes and file descriptors. I can't talk about this project without mentioning my partner Bruno Henrique L.. Throughout the whole project he was very present and never let us down with the tasks we set for each other. With weekly meetings, we always aligned the points of situation to define new priorities. Thanks again Bruno! Philosophers 🤔💭 This is a project that involves solving the philosophers' dinner problem, the aim of which is to find a way of organizing resources and operations while avoiding delays. In this project I was introduced to threads and mutexes, and this involves knowledge such as deadlock and data races, which are problems to avoid when using these new tools. For this project I realized the importance of optimizing code and tasks, because every millisecond matters and so I needed to work out the resolution with as few mutexes and tasks as possible. Exam The exam was important for me because it allowed me to feel the real progress I had made this year in 42 Lisbon. The Get Next Line program is one of the first projects I did on the course, and when I had to do it, it took me about a month. But during the exam I had 3 hours to write the program from scratch, and to my surprise the biggest difficulty I encountered was remembering which library allowed me to use the read function, and I had to look through manuals in the terminal to find out. 🤣 Get Next Line consists of a program that takes the name of a file and returns it line by line. Here are the links to the github repositories: https://lnkd.in/d3W33FzW https://lnkd.in/dzy7emYY https://lnkd.in/d333_3cR

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🌟 Professional Philosophy: Beyond the Code 🌟 In the ever-evolving world of software development, technical expertise is just one piece of the puzzle. Alex Oliveira, a seasoned software developer with over two decades of experience, believes that true success comes from understanding the bigger picture. 💡 "Always know the business, the people, and how the team works before diving into the code." - Alex Oliveira For Alex, being a great developer is not just about writing flawless code; it's about integrating seamlessly into the business environment, understanding the team's dynamics, and aligning with the company's goals. This holistic approach has enabled Alex to deliver solutions that not only meet technical requirements but also drive real business value. 🔍 Stay tuned as we dive deeper into Alex's journey and the impact he's made in his recent roles. #SoftwareDevelopment #BusinessIntegration #TeamDynamics #TechLeadership #Segulatechnologies

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