JUnit 5 – new approach, new functionalities. Part 3
JUnit 5 – new approach, new functionalities. Part 3
Junit has more assertion type methods than Junit 4. Several have been added and they work very well together with the lambda expressions in Java 8. All these types of methods are static and come from the org.junit.jupiter.api.Assertions class.
6 серп 2019
1823
Інші статті
How to incrementally migrate the data from RDBMS to Hadoop using Sqoop Incremental Last Modified technique?
How to implement Slowly Changing Dimensions(SCD) Type 2 in Spark?
How to incrementally migrate the data from RDBMS to Hadoop using Sqoop Incremental Append technique?
Why MongoDB don't fetch all the matching documents for the query fired
How to solve the issue of full disk utilization in HDFS Namenode
Can We Use HDFS as Back-up Storage?
How to do Indexing in MongoDB with Elastic Search? Part 1
How to do Indexing in MongoDB with Elastic Search? Part 2
How to store data on browser using NoSQL IndexedDB?
How to Apply MBTI in HR: Motivation for every day. Groups of People & their Motivations
Assertions in Junit 5
Junit has more assertion type methods than Junit 4. Several have been added and they work very well together with the lambda expressions in Java 8. All these types of methods are static and come from the org.junit.jupiter.api.Assertions class.
The comparison between assertions in Junit 4 and Junit 5 look like this:
The message in assertions is the last parameter of the methods:
The supplier allows for lazy initialization in case of complex messages. A chunk of code which uses possible assertions looks like this:
Catalin Tudose
Java and Web Technologies Expert
Junit has more assertion type methods than Junit 4. Several have been added and they work very well together with the lambda expressions in Java 8. All these types of methods are static and come from the org.junit.jupiter.api.Assertions class.
The comparison between assertions in Junit 4 and Junit 5 look like this:
| JUnit 4 | JUnit 5 |
|
Assert Class
The optional message is the first parameter |
Assertions Class
The optional message is the last parameter The assertThat method has been removed New methods: assertAll and assertThrows |
The message in assertions is the last parameter of the methods:
The supplier allows for lazy initialization in case of complex messages. A chunk of code which uses possible assertions looks like this:
Interested in JUnit? Check out our trainings.
Catalin Tudose
Java and Web Technologies Expert