Use AssertJ to improve your test code readability, maintenance of tests easier
AssertJ core is a Java library that provides a fluent interface for writing assertions.It provides assertions for JDK standard types and can be used with JUnit, TestNG or any other test framework.
Key Features :
- AssertJ provides a rich set of assertions, truly helpful error messages, improves test code readability and is designed to be super easy to use within your favorite IDE.
- AssertJ gives readable error messages, soft assertions, and improved collections and exception support.
- You can easily write assertions for your own classes, which will make your test assertions reflect the domain
- Basic tips :
- Java 8 assertions
- IDE configuration to directly get assertThat in code completion
- Describe your assertion using as(String description, Object… args)
- Exception assertions guide
- Using String assertions on the content of a file
Iterable and arrays assertions :
- Combining filtering and assertions on iterables or arrays
- Assertions on extracted properties/fields of iterable/array elements
- Flat(map) extracting
- Assertions on results of a method call on iterable/array elements
- Gather all errors message with soft assertions
- Using a custom comparison strategy in assertions
- Field by field comparisons
- Using a custom representation in assertions
- Extending assertions with conditions
- Creating assertions for your domain
- AssertJ provides assertions for popular libraries like Guava,Joda Time & Neo4J
Get started with one minute starting guide
If you want to convert your JUnit assertions to AssertJ,here it is!
Like this post? Don’t forget to share it!
Summary
Article Name
Use AssertJ to improve your test code readability, maintenance of tests easier
Description
AssertJ core is a Java library that provides a fluent interface for writing assertions.It provides assertions for JDK standard types and can be used with JUnit, TestNG or any other test framework.
Author
Karthik
Publisher Name
upnxtblog
Publisher Logo
Average Rating