{"id":44481,"date":"2017-04-12T11:00:02","date_gmt":"2017-04-12T08:00:02","guid":{"rendered":"http:\/\/examples.javacodegeeks.com\/?p=44481"},"modified":"2019-03-20T13:59:24","modified_gmt":"2019-03-20T11:59:24","slug":"junit-test-constructor-example","status":"publish","type":"post","link":"https:\/\/examples.javacodegeeks.com\/java-development\/core-java\/junit\/junit-test-constructor-example\/","title":{"rendered":"JUnit Test Constructor Example"},"content":{"rendered":"

In JUnit Test Constructor Example, we shall show you the process of testing the constructor of a class. It is as simple as we are testing other methods. Since the constructor is called before any other methods of the class we need to see the relevance of testing it.
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\nConstructors are used for initializing the class and then do some processing on it. We will examine the different ways of testing the constructor of a class.<\/p>\n

1. Introduction<\/h2>\n

JUnit<\/a> provides lot of methods to test our cases. We can test the constructor of a class using the same techniques we have used in our previous examples. Sometimes we need to initialize the objects and we do them in a constructor. In JUnit we can also do same using the @Before<\/code> method. But what will be the difference between them?<\/p>\n

They are following the same scenario as both all called before any test case is executed.<\/p>\n

Tip<\/strong>
\nConstructor and @Before both are same. But constructor has a drawback that it will not give proper error message, whereas @Before method will give proper error message in case of failing.<\/div>\n

We will see in the below example the way to test our constructor.<\/p>\n

2. Technologies Used<\/h2>\n

We will be using following technologies in out below example.<\/p>\n