Tag: mockito

Mockito doThrow() method makes my test fail with the given exception

I’m testing the error case for when my injected StatefulBeanToCsv dependency throws an exception. However, Mockito’s doThrow() method is just making my test fail, rather than allowing that exception to be verified using assertThrows(). I’m injecting my StatefulBeanToCsv dependency through a BeanFactory rather than constructor/setter injection, because I need to pass it a Writer as an argument. The test is

Intellij Junit causes java.lang.SecurityException: Invalid signature file digest for Manifest main attributes

jar java junit mockito sendgrid

I am trying to integrate sendgrid into one of our repo’s that handles emails. But my Junit tests keep throwing the mentioned Exception. I’ve skimmed through most of the posts on here talking about running the jar and issues around cglib and I do have the latest Mockito-all (1.10.19) pulled down. I’m able to build the jar and get it

Null pointer exception when using Mockito to mock interface

java mockito nullpointerexception unit-testing

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 like using Collections.emptyList() in the test is the problem, but I don’t see any other solution

MockitoException when trying to mock java.lang.System

android java mocking mockito unit-testing

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 happen? How can I mock methods of java.lang.System class? Answer While Mockito

Invalid use of argument matchers! 2 matchers expected, 1 recorded

java mockito spring-boot testing unit-testing

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 initially i am just

How to stop main method calling sleep() method, when testing it with Junit?

java junit mockito thread-sleep unit-testing

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 a property of the

No mapping for request with mockmvc

java mockito mockmvc spring spring-boot

Currently struggling with problem when I get ‘mapping error for request’ with following controller/test configuration. Controller: Test: Configuration: After test execution I get No mapping for POST /subscriber/session The reason for the struggle is that my code from other modules with the same configuration works fine. Can somebody point out what am I missing ? Thanks in advance! Answer Apparently

Write unit test for jdbcTemplate.batchUpdate() method

java jdbctemplate junit mockito unit-testing

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 that the new BatchPreparedStatementSetter(){ …} instance that contains the main logic that you

Mockito Spy Does Not See Correct Primitive Value

java junit mockito spy

I am facing the below problem where, when indirectly updating the fields on a spy object, the spy does NOT see updates on primitive fields, whereas it sees on reference once. As an example: import org….

Trying to mock IntConsumer with Mockito fails

java junit mockito

I’m trying to mock IntConsumer: and it fails on the ‘verify’ with below error code: Method threw ‘org.mockito.exceptions.base.MockitoException’ exception. Cannot evaluate $java.util.function.IntConsumer$$EnhancerByMockitoWithCGLIB$$3ee084c4.toString() Answer You need to tell Mockito what method it is supposed to verify on the IntConsumer mock. Your verification code should look something like: See for example the tutorial at Baeldung.