junit5 VS Spring Boot

To make the above check work we need to wrap it in JUnit test:

Java / JUnit

Next, you need to install a testing framework that will be used for performing unit testing in your project. Several testing frameworks are available depending on the programming language used to create an application. For example, JUnit is commonly used for Java apps, pytest for Python apps, NUnit for .NET apps, Jest for JavaScript apps, and so on. We’ll use the Jest framework for this tutorial since we are using JavaScript.

This repository provides a BuildImageTest that uses the buildpack to create a native image. It then tests the native image, using Testcontainers and JUnit. Building the native image with AOT processing, as part of a test, takes minutes not seconds, and should not be part of normal "inner loop" development. So the BuildImageTest is in a separate sourceSet and can be executed independently. This is a very powerful pattern, that I'm just getting started with. I would love to hear your thoughts on this pattern or other alternatives to it.

To get started with testing, search for a popular testing framework for your programming language. PHP has PHPUnit, for example. Java has JUnit. Flutter apps use Flutter Driver. No matter your language or framework, there is a testing framework that will work for your app.

Another library which may be of use to you once you've gotten to grips with the basics of Java is JUnit. JUnit provides functionality for unit testing, allowing you to more easily see if your code is working as expected/if you've accidentally broken anything, via letting you write tests that can check if your code is behaving as expected or not.

Official Website : https://junit.org/

In my last episode (https://youtu.be/cs2Wu9Co-2s) I said that we shouldn't use JUnit @BeforeEach to setUp test fields. Christoph Sturm (https://twitter.com/globalo) pointed out that there is an, erm, feature of JUnit 5 that means that we sometimes have to use @BeforeEach methods to initialise resources if we want them to be released in @AfterEach. The bug report is here https://github.com/junit-team/junit5/issues/1358 With or without this feature, we probably should use @BeforeEach to run code that will allocate non-memory resources that we need to free in @AfterEach, if only for symmetry. I suppose that also applies to any side-effects that we need to be reverted and that are not confined to the state of the test fixture.

Testing tools on the JVM stopped using reflection about twenty years ago, they all use annotations these days (e.g. https://testng.org, https://junit.org). Rust has annotations too, obviously.

Testcontainers is a Java library that supports JUnit tests providing lightweight instances of anything that we can run in a Docker container.

- Usually manually wired and configured vs the spring boot "starter" pattern of having libraries that automatically do some of the manual setup work for you: https://github.com/spring-projects/spring-boot/blob/main/spr...

I wish more client library sets had the feature-matrix that the pulsar one does, because in practice most end up being the same: Java supports everything because it's either built in the same codebase or is the most used client and gets the most support, while the dotnet client codebase has many feature-requests or performance improvement issues, often leading to a "third-party client" being created.

https://github.com/spring-projects/spring-boot/pull/39754/co...

If you’re currently running with an earlier version of Spring Boot, I recommend that you upgrade to Spring Boot 2.7 before migrating to Spring Boot 3.0. It minimizes compatibility issues as much as possible.

Okay, we need to build the game? No problem, we will use Spring Boot and Swing!

It's weird that some people including you directly attack my competence. As a power user you should have plenty of experience getting something to work that is not properly document, does not work how the documentation promised it to, or has weird problems on top of it. Look at idiotic things like this:

https://github.com/spring-projects/spring-boot/issues/33044

Take any similar issue and you'll see a bunch of people who try to find a solution for them because they just aren't repeatable at all. The underlying issue is the auto configuration doing things you can't follow quite properly. It's like it wasn't mean to be understood. Issues like the one I linked above also show me that the spring dev crowd also doesn't understand the ecosystem anymore. The problem is complexity and automagic.

An interested reader can decide for themselves:

https://github.com/spring-projects/spring-boot/tree/main/spr...

Explicitly decoding URL query parameters occurs less often because many frameworks, including Spring Boot, handle decoding automatically.

https://aws.amazon.com/lambda/ https://aws.amazon.com/api-gateway/ https://aws.amazon.com/serverless/sam/ https://aws.amazon.com/cloudformation/ https://aws.amazon.com/s3/ https://spring.io/projects/spring-boot https://start.spring.io