i have created a basic CRUD api with spring boot.I have written test cases for the controller class,but i’m getting error when running the test. The code’s i tried is given Below model CrudController CrudControllerTest Error I’m Getting for POST api test Delete Api test case Error java.lang.…
Tag: unit-testing
Add tests to java classpath vscode
This is my current setup: I want to be able to run the tests, but VSCode doesn’t detect them: I have tried creating the following .classpath, but still doesn’t work: I can run the test in the terminal using: Answer Update: There is another more convenient approach: You can configure the classpath …
Null pointer exception when using Mockito to mock interface
I’m using Mockito to test the following method: Here is my test: But I keep getting NullPointerExeption for this line: ValueProducerFactory is an Interface and the createValueProducer method signature is as follows: I have a class named CachingValueProducerFactory that implements the interface It seems …
How do I unit test spring security @PreAuthorize custom expression
I want to write the test of this endpoint, but I am getting the following error. How can I make the expression resolve bean ? Using @MockBean MessageSecurityService didn’t work. Answer Have you stub the return of the @MockBean e.g also have you added the following in your test class:
MockitoException when trying to mock java.lang.System
I have a test case that mock a static method of java.lang.System class: But when I run the test, I got this error: org.mockito.exceptions.base.MockitoException: It is not possible to mock static methods of java.lang.System to avoid interfering with class loading what leads to infinite loops Why does this happ…
Unit testing with inject annotation
How do I unit test a class that uses @inject annotation:class A{ I am new to unit testing and having troubles testing this function because when calling b.funcInClassB() it throws NullPointerException because b is null. I wrote the following test: Answer I figured it out:
Invalid use of argument matchers! 2 matchers expected, 1 recorded
I am writing a test to validate creations of trolleys. So,it is just a service method which basically creates number of trolleys in the database. I am mocking the repository using mockito. So, What i am doing is I am mocking and save and getAll functionality of Repository. Here is what my code looks like:- So…
How to stop main method calling sleep() method, when testing it with Junit?
I am testing a method which contain sleep in side it.What is the way to stop invoke sleep() as it makes testing slow?? Answer There is no easy way for doing this. You have several options. The easiest one would be to make the REQUEST_STATUS_CHECK_INTERVAL configurable and configure it to 0 in tests. It can be…
Write unit test for jdbcTemplate.batchUpdate() method
I have jdbcTemplate code, on which I am trying to write a unit test case. But the problem is I am unable to cover the full code. I am able to cover till: try{jdbcTemplate.batchUpdate(“update query”, new BatchPreparedStatementSetter(){ Test code snippet Please help. Answer Here the difficulty is th…
parameterized test constructor of junit java error message: Test class should have exactly one public zero-argument constructor
I can really use some help with this parameterized test case I am trying to create. No matter what kind of constructor I create the IDE gives an error message. Here is my code: I have tried different ways of creating a 1 parameter, 2, and no parameter constructors. But I have never seen this type of issue or …