Entries

Test Data Builders and Object Mother: another look

Constructing objects in tests is usually a painstaking work and usually it produces a lot of repeatable and hard to read code. There are two common solutions for working with complex test data: Object Mother and Test Data Builder . Both has advantages and disadvantages, but (smartly) combined can bring new quality to your tests.
Open record

Listing a ZIP file contents with Stream API in Java 8

In Java 8 java.util.zip.ZipFile was equipped with a stream method that allows navigating over a ZIP file entries very easily. In this blog post I will show a bunch of examples showing how quickly we can navigate over ZIP file entries.
Open record

Spring 4: @DateTimeFormat with Java 8 Date-Time API

@DateTimeFormat annotation that was introduced in Spring 3.0 as a part of Formatter SPI can be used to to parse and print localized field values in web applications. In Spring 4.0, @DateTimeFormat annotation can be used with Java 8 Date-Time API ( java.time ) out-of-the-box, without extra effort.
Open record

Parsing a file with Stream API in Java 8

Streams are everywhere in Java 8. Just look around and for sure you will find them. It also applies to java.io.BufferedReader . Parsing a file in Java 8 with Stream API is extremely easy.
Open record

Spice up your test code with custom assertions

Inspired by the @tkaczanowski talk during GeeCON conference I decided to have a closer look at custom assertions with AssertJ library.
Open record