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The Fundamentals of Testing with Persistence Layers

Mocking out dependencies such as databases and other persistence layers leads to ineffective tests. Unfortunately, our industry is also focused on function-level testing to the exclusion of all else, so few are trained on how to write any other type of test. This article seeks to correct the issue by reintroducing the concept of testing with databases.

Jonathan Allen
on Oct 11, 2021
Mobile

Kotlin at Ten. Interview with JetBrains’ Roman Elizarov

JetBrains unveiled Kotlin in July 2011, aiming to create a modern, general-purpose programming language running on the JVM as well as on the Web. Kotlin has quickly seen huge adoption, especially for Android app development. InfoQ has taken the chance to speak with Kotlin project lead at JetBrains Roman Elizarov to learn more about the origins of the language and its future.

Roman Elizarov Sergio De Simone
on Sep 06, 2021
Development

The Excel Formula Language Is Now Turing-Complete

The Excel team announced LAMBDA, a new feature that lets users define and name formula functions. LAMBDA functions admit parameters, can call other LAMBDA functions and recursively call themselves. With LAMBDA, the Excel formula language is Turing-complete: user-defined functions can thus compute anything without resorting to imperative languages (e.g., VBA, JavaScript).

Bruno Couriol
on Aug 02, 2021
Culture & Methods

Applying Lean Tools and Techniques to Scrum

This article focuses on some of the challenges that Scrum is facing and how Lean can be a complementary approach. Lean is often misunderstood as a heavyweight process when in fact it is a philosophy, one that is grounded in continuous improvement. The topic of waste, a central theme that Lean helps focus on, shows us that Scrum can be improved upon.

Leigh Griffin
on Jul 07, 2021
Cloud

Solving Mysteries Faster with Observability

At QCon plus, a virtual conference for senior software engineers and architects covering the trends, best practices, and solutions leveraged by the world's most innovative software organizations, Elizabeth Carretto discussed observability at Netflix and how their internal tool, Edgar, comes into play.

Elizabeth Carretto
on Jun 30, 2021
Architecture & Design

Building Latency Sensitive User Facing Analytics via Apache Pinot

At QCon, a virtual conference for senior software engineers and architects covering the trends, Chinmay Soman talked about how you can use Apache Pinot as part of your data pipelines for building rich, external, or site-facing analytics.

Chinmay Soman
on Jun 28, 2021
Culture & Methods

Software Engineering at Google: Practices, Tools, Values, and Culture

The book Software Engineering at Google provides insights into the practices and tools used at Google to develop and maintain software with respect to time, scale, and the tradeoffs that all engineers make in development. It also explores the engineering values and the culture that’s based on them, emphasizing the main differences between programming and software engineering.

Ben Linders Titus Winters Tom Manshreck Hyrum Wright
on Jun 02, 2021
.NET

Building a Source Generator for C#

In this article we’ll be writing a Source Generator for C#. Along the way we’ll explain some of the key technologies you’re going to need to learn in order to build your own and some of the pitfalls you might encounter on the way.

Jonathan Allen
on May 27, 2021
Architecture & Design

Case Study: a Decade of Microservices at a Financial Firm

Microservices are the hot new architectural pattern, but the problem with “hot” and “new” is that it can take years for the real costs of an architectural pattern to be revealed. Fortunately, the pattern isn’t new, just the name is. So, we can learn from companies that have been doing this for a decade or more.

Jonathan Allen
on May 21, 2021
.NET

The Future of Windows (and Other Platforms) Development

Microsoft is looking to address the fragmentation in the Windows developer ecosystem through Windows UI and Project Reunion. In this article, we’ll see how different groups of Windows developers will be able to adopt Project Reunion. We’ll also look at how Project Reunion, coupled with the Uno Platform, can be used to extend a Windows application across iOS, macOS, Android, Web, and even Linux.

Nick Randolph
on May 18, 2021
.NET

Deep Diving into EF Core: Q&A with Jeremy Likness

Entity Framework (EF) Core is a cross-platform, extensible, open-source object-database mapper for .NET. Since its first release in 2016, EF Core evolved until reaching its current form: a powerful and lightweight .NET ORM. InfoQ interviewed Jeremy Likness, program manager for .NET Data at Microsoft, to understand more about EF Core and what we should expect for its next release later this year.

Jeremy Likness Arthur Casals
on May 12, 2021
Culture & Methods

Increasing Developer Effectiveness by Optimizing Feedback Loops

We can think of engineering as a series of feedback loops: simple tasks that developers do and then validate to get feedback, which might be by a colleague, a system (i.e. an automation) or an end user. Using a framework of feedback loops we have a way of measuring and prioritizing the improvements we need to do to optimize developer effectiveness.

Ben Linders Tim Cochran
on May 10, 2021