In this post under JUnit, I will show with example the purpose and how to use JUnit 5’s “RepeatedTest” annotation. The “RepeatedTest” annotation is applied on a method. Once applied it indicates the JUnit that it has repeat testing of annotated method a specified number of times. Below is the snapshot showing how to use…… Continue reading @RepeatedTest annotation

In this post under JUnit, I will show with example how to assert whether a expected collection has same elements, at the same position when compared to actual collection. Pre JUnit 5, to do this,1) we have to iterate item by item in both collection (expected and actual) at the same time2) compare the items…… Continue reading assertIterableEquals example

In this post under JUnit, I will show with example the purpose of “assertThrowsExactly” method and how it is different with “assertThrows” method. I have explained with example, the purpose of “assertThrows” static method in previous posts. For recap, “assertThrows” method asserts that the test method throws the expected exception. If the test method doesn’t…… Continue reading assertThrows vs assertThrowsExactly example

In this post under JUnit, I will explain with example the purpose of “beforeAll” and “afterAll” annotations. In the previous post under JUnit, I covered about “beforeEach” and “afterEach” annotation. Similarly to “beforeEach” and “afterEach”, “beforeAll” and “afterAll” is applied to methods. But methods annotated with “beforeEach” and “afterEach” annotations are executed before and after…… Continue reading beforeAll and afterAll annotation

In this post under Junit 5, I will explain with example the purpose of “assertArraysEquals” method. We can use the “assertArraysEquals” method to assert whether two arrays are equal or not. Below is the complete main code for your reference. Main Class package package15;import static org.junit.jupiter.api.Assertions.assertAll;import static org.junit.jupiter.api.Assertions.assertArrayEquals;import org.junit.jupiter.api.Test;public class Example15 { @Test public void…… Continue reading assertArraysEquals example

In this post under JUnit, I will explain the purpose of “assumingThat” assertion method. In my previous postAssumptions in JUnit 5 I showed you how to use “assumeTrue” and “assumeFalse” assumption statements. Lets add that code here again for recap Below is the class to be tested. MockUserRepository package package14;public class MockUserRepository { private boolean…… Continue reading assumingThat example

In this post under JUnit, I will explain with example the purpose of “TestInstance” annotation. By default when we execute a test class, for each test method, a separate instance of test class is created. Lets see an example. For our example I will create the below “Calculator” class that has to be tested. Calculator…… Continue reading @TestInstance example

In this post under JUnit 5, I will show with example the purpose of “assertAll” method. Pre JUnit 5, If a testcase had multiple assert statements, the testing of that testcase would stop immediately at the first assert statement that fails. So for example if we have below test method public void testMethod() { assert1…… Continue reading AssertAll Example