Good software is always a well-designed software. Software engineering takes good thinking, reviewing past solutions and paying attention to the difficulties that we had to go through when making changes, refactoring, testing our solutions.But as we accumulate experience, we inevitably ask ourselves: do we need to reinvent the design all the time?No, of course – …
At the base of a solid technology team is monitoring. Monitoring is your eyes – if you don’t monitor you don’t know if your processes are running fine. In fact you don’t know if they are running at all. Plus, you don’t want to find out about the crash from your business client, right? Incident …
This is a real-life example: recommendations issued to a client after review of their environments and development processes. The client had a lot ETL coded in Stored Procs and it wasn’t feasible to change that – but still some things could be improved a lot without breaking the bank or causing a revolution – as …
Real-life example: recommendations issued to a client Read More »
This is a walk-though article. Covered in this article: Git merging Git rebasing Git merging with squashing commits into one Git merging with fast forwarding commits Deleting old commits Visualizing commits When working with Git branches you need to check if your current feature branch deviated from the main branch (e.g. master) and bring those …
This walkthrough will compare the results of different types of merging Our initial state is: we are on wip branch, ahead of master by 3 commits: Use case 1: simple merge We switch to master branch and list the commits Now we tell Git to merge wip onto master Here’s our graph of commits after …
Junit Parameterized tests allow a developer to run the same test multiple times with different parameter values.This is very useful feature that greatly improves quality of testing. In order to use parameterized tests you need to annotate test class with @RunWith(Parameterized.class).Then you create a public static method that returns a Collection of Objects – this …
Improve quality of your testing with Parameterized JUnit tests Read More »
To write quality code it’s necesary to test it, as everybody knows and hopefully practices. How do you avoid super complex, fragile Unit tests that span hundreds of lines of code? The answer is you don’t use the real boiler-plate objects, you use test double objects (mock objects). Let’s use Mockito to demonstrate how this …
Mockito Test Cases and Tests where exceptions are expected Read More »
Below some of the design pattern we use most often, their purpose and examples. Factory Method Factory method – it’s a creational design pattern that allows subclasses to decide which classes to instantiate, removing this concern from the caller level.The factory method is typically abstract, and subclasses implement their own suitable version, as long as …