testing

During development process, we often write unit and integration tests. While unit tests verify corectness of the small pieces of code, integration tests verify software as a whole project and sometimes can treat it as a black box where concrete results are expected. During development of the REST API, we can write integration tests for such API with REST Assured. Integration tests are usually slower, because they need to start the server and sometimes do other stuff....

I recently wrote a simple java app with Dagger 2 as a DI container and Gradle as a build system. I wanted to generate unit test coverage report for this app, so I used Jacoco. In my build.gradle file I configured JaCoCo as follows: plugins { id 'jacoco' } jacocoTestReport { reports { xml.enabled = true html.enabled = true } } Now, I could type: ./gradlew test jacocoTestReport Report was generated in build/reports/jacoco/ directory....

In Java, we can test exceptions via unit tests in a few different ways. In this article, I’ll present common methods of doing that. Nevertheless, I suppose we there are different methods as well. First method is basically wrapping a method call with try-catch block, assigning an exception to a variable and performing appropriate assertion. In these examples, I’m using JUnit for unit tests and Truth for assertions. @Test public void shouldTestExceptionWithTryCatch() { Exception caughtException = null; try { throw new RuntimeExcetpion("message"); } catch (final Exception e) { caughtException = e; } assertThat(caughtException)....

Introduction Some time ago, I’ve written an article about Test coverage report for Android application. It got some interest (many comments below article and many visits according to Google Analytics), so I decided to refresh this topic. Previously, I’ve written instrumentation unit tests, which needed to be executed on a real device or an emulator. It’s a good approach when you want to test functionalities strongly connected with the device. E....

Introduction In release cycle of our team at work, we need to perform so-called system tests. In order to do that, we need to log into Artifactory, search for the latest release package, check if it’s up to date, download it, unzip it, install internal configuration recipe, compile, initialize & run it. Not all of that can be easily automated, but I thought that at least searching & downloading phase can be done from the terminal in a semi-automated way....