Category: Programming

November 24, 2021 Programming

Webpack Watch Cached And Not Refreshing Bundles

webpack code showing [cached] everywhere

If you use webpack as your JavaScript bundler, you might have experienced an issue with webpack --watch not refreshing your bundles when modifying the source files. In this case, webpack’s output after changing the file is similar to the following one:

Webpack output showing [cached]

As you can see, there are some [cached] mentions there in a few places and no [code generated] statements at all. The effect is that your bundles are not rebuilt at all. In order to have them refreshed, you need to restart the building process, which takes time and makes your development flow painful. If you want to know how to solve that problem, read on ?

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October 27, 2021 Programming

How Does TypeScript Types Narrowing Work?

Have you ever heard about TypeScript types narrowing? Have you ever seen such an error in your TypeScript code:

TypeScript complains about "name" property not existing on "person" object of type "object"

Even tough, you really knew that the name property exists on the person object? How did you solve this problem? Did you cast the variable to the expected type?

If the answer to at least one of those questions is yes, you might read on. There are better ways of determining the type of local variable in TypeScript. What’s more, TS compiler does a lot of stuff for us by leveraging types narrowing. In this article, we are going to see how it works and how it can be useful ?

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September 13, 2021 Programming

Run Cypress Tests From NUnit Test (C#)

In one of our projects, we recently started using Cypress for end-to-end testing. Cypress executes tests written in JavaScript or TypeScript. However, we wanted to first perform some data-preparation operations using C#. In fact, we needed to run Cypress tests from NUnit C# tests.

In this article, I’m sharing how this can be done ? It will also be useful if you use another testing framework than NUnit, but the examples are based on it.

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September 6, 2021 Programming

Foreach, IEnumerable and IEnumerator in C#

Highlighted image - laptop and monitors with code at them

Today, we’re taking a deeper look at foreach loop in C#. What does a collection need to be able to use it in a foreach loop? Does it have to implement IEnumerable interface? These questions are often asked during interviews, so it’s worth knowing the answers ?

We will go through a step-by-step example in building our own custom collection to see how all that works. Let’s dive in! ?

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August 23, 2021 Programming

Make Your Tests Bulletproof With Mutation Testing

Yumasoft - mutation testing, featured photo

What is mutation testing? How can we generate test cases “for free”? How to make our software tests bulletproof, so we can refactor the code with more confidence?

At Yumasoft, we believe that testing is an inseparable part of software development. Mutation testing, which recently got a bit more attention in programming communities, is a great way of improving our tests. In today’s article, we’re exploring what mutation testing is and why everyone should be using it ?

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July 26, 2021 Programming

Why Naming Tests Matters?

Why naming tests matters - highlighted photo (tests in ruby)

Do you even care about naming tests? Or maybe you use some random, not-much-telling names for your test methods? At Yumasoft, we treat testing as an inseparable part of software development. It turns out that the tests you write can tell a lot about your software. However, when named carelessly, these tests have much less value. Let’s talk about naming tests properly, so both programmers and business can get more value of them.

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