mockito throw exception on void method mockito throw exception on void method

Popularity 9/10 Helpfulness 8/10 Source: stackoverflow.com. Any ideas how I can get the method to throw a specified exception? Stub void method Using deprecated API stubVoid We stub the custom behavior using doAnswer() and when() APIs. How do I test a class that has private methods, fields or inner classes? In Mockito Hello World Example, we have learnt how to stub a non-void method that returns something. Note that we could not use the statement when().thenThrow() for methods that do not return any value. Source: (Example.java) import org.mockito.Mockito; import static org. Are you using EasyMock or Mockito? Find a sample here: assert exception junit. If you ever wondered how to do it using the new BDD style of Mockito: willThrow (new Exception ()).given (mockedObject).methodReturningVoid ()); And for future reference one may need to throw exception and then do nothing: willThrow (new Exception ()).willDoNothing ().given (mockedObject).methodReturningVoid ()); Share doThrow() and doReturn() replaces stubVoid() because of improved readability and consistency with the family of doAnswer() methods. 2. 1 Answer Sorted by: 1 Firstly, your method deleteTableEsiti () never throws any exception. If you want your method to throw an exception, don't catch it, or catch it and throw a custom exception that wraps the original exception. (adsbygoogle = window.adsbygoogle || []).push({}). Please read and accept our website Terms and Privacy Policy to post a comment. DevPedrada. In mocking, for every method of mocked object doNothing is the default behavior. How to use Slater Type Orbitals as a basis functions in matrix method correctly? After our previous blog on difference between thenReturn and thenAnswer mockito methods, we are back with yet another interesting blog on Mockito. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Example service class We will be testing simple ThrowingService that has two methods: mockito throw exception void method java by DevPedrada on Dec 18 2020 Donate Comment 3 xxxxxxxxxx 1 doThrow(new Exception()).when(mockedObject).methodReturningVoid(); Source: stackoverflow.com Add a Grepper Answer Answers related to mockito void method throw exception throw rev2023.3.3.43278. What this will do, is call the real void method with the actual arguments. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. And you need to test to test that it does throw exception during the second method call, not the first one. For checking the cause of the exception, I use: expectedException.expectCause(Mockito.sameInstance(expectedException)) or expectedException.expectCause(Mockito.instanceOf(MyException.class)) and a few others that come in handy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Hey guys! Thanks for contributing an answer to Stack Overflow! We will present two approaches: one for methods that returns some value and one for void methods - there are some differences in the implementation. Have you written a response to this post? Throwing an Exception. Java is a trademark or registered trademark of Oracle Corporation in the United States and other countries. WebIn this recipe, we will stub a void method that doesn't return a value, so it throws an exception. Suppose we want to custom behavior a methods behavior based on the arguments passed then we can use doAnswer() API. Find centralized, trusted content and collaborate around the technologies you use most. WebHere we've added an exception clause to a mock object. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Force Method to throw an exception in Mockito, Unit test: Simulate a timeout with Guzzle 5, Mock/Stub a RuntimeException in unit test, How to doThrow or thenThrow on method that returns void and throws an exception, I want to write a mockito test case for a spring boot service method. Mutually exclusive execution using std::atomic? In test eatMultipleDishes(), NotSoTastyException is thrown the first time customer.eat(dish) is called. Written by Jamie Tanna Invalid: java.lang.Exception: Cannot process at To learn more, see our tips on writing great answers. doThrow () : Throw exception when mocked void method is called doCallRealMethod () : Do not mock and call real method 1) Using doNothing () If we just want to completely ignore the void method call, we can use doNothing (). Here's the code for this unit test sample: I cannot change the implementation of CacheWrapper because it comes from a third party library. 4.2. public void deleteCurrentlyLoggedInUser (Principal principal) { if (findLoggedInUser (principal) == null) { throw new UserAlreadyDeletedException (); } userRepository.delete (findLoggedInUser (principal)); } Here is findLoggedInUser: User findLoggedInUser (Principal principal) { return userRepository.findByUsername But note that stubVoid() is deprecated so we wont use it any more. Sometimes we may also need to stub a void method which is what I am going to show in this article. The cookie is used to store the user consent for the cookies in the category "Analytics". Please could you expand more about this. What is the point of Thrower's Bandolier? It can also throw a number of exceptions so I'd like to test those exceptions being thrown. vegan) just to try it, does this inconvenience the caterers and staff? Is the God of a monotheism necessarily omnipotent? Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. We can't use when ().thenThrow () with void return type, as the compiler doesn't allow void methods inside brackets. How do I fix failed forbidden downloads in Chrome? In this article, we will show how to configure the method call to throw an exception using Mockito. Linear Algebra - Linear transformation question, Styling contours by colour and by line thickness in QGIS, Identify those arcade games from a 1983 Brazilian music video, Acidity of alcohols and basicity of amines. If you are new to mocking you can know more at mockito website. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, How Intuit democratizes AI development across teams through reusability. 4.2. Customer: Dish: 1 2 3 4 5 package com.javacodegeeks.mockito; public interface Dish { void eat () throws WrongDishException; } 2. the exception won't be thrown from your test method). This website uses cookies to improve your experience while you navigate through the website. @JB Nizet I totally agree with you but however if I write doThrow(new Exception()) instead of doThrow(Exception.class), I have the following error when I launch my test ; Expected exception com.company.project.exception.ElementNotFoundException but got org.mockito.exceptions.base.MockitoException: doThrow(new Exception()).when(object).voidMethod(any()); Thanks for posting this here; if the method returns a value : given(mockedObject.methodReturningAnObject()).willThrow(new Exception()); if the method doesn't return anything : willThrow(new Exception()).given(mockedObject).methodReturningVoid()); Explanation form javadoc : "Stubbing voids requires different approach from {@link Mockito#when(Object)} (or BDDMockito.given)because the compiler does not like void methods inside brackets", Mockito test a void method throws an exception, How to make mock to void methods with mockito, docs.mockito.googlecode.com/hg/latest/org/mockito/, How Intuit democratizes AI development across teams through reusability. Asking for help, clarification, or responding to other answers. Mockito: Trying to spy on method is calling the original method. How to follow the signal when reading the schematic? WebIn this recipe, we will stub a void method that doesn't return a value, so it throws an exception. Unfortunately this doesn't work, as we receive the following compilation error: src/test/java/me/jvt/hacking/DataClassValidatorTest.java:24: error: 'void' type not allowed here Mockito.when (sut.doTheThing ()).thenThrow (new RuntimeException ("foo")); And in IntelliJ, we we see the following cryptic error: Getting ready For this recipe, our system under test will be a PersonProcessor class that, for simplicity, does only one thing: it delegates the process of saving person to the PersonSaver class. PowerMockito allows you to do things that Mockito or EasyMock don't. Originally, stubVoid() was used for stubbing void methods with exceptions. How to assert that void method throws Exception using Mockito and catch-exception? Mockito provides following methods that can be used to mock void methods. Example Step 1 Create an interface called CalculatorService to provide mathematical functions File: CalculatorService.java If you ever wondered how to do it using the new BDD style of Mockito: And for future reference one may need to throw exception and then do nothing: In my case, I wanted to throw an explicit exception for a try block,my method block was something like below, I have covered all the above exceptions for sonar coverage like below. These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. This cookie is set by GDPR Cookie Consent plugin. How do you test that a Python function throws an exception? Let's get started! Methods that return void can't be used with when. If the dish is too spicy then the overloaded eat(spice) method is going to throw a RuntimeException. The example I have chosen is about a dish that a customer is going to taste. Stub void method Using deprecated API stubVoid Lets create a simple class with a void method that we will mock in our test classes. But this raised an exception because it doesn't integrate with EasyMock. Mockito's doCallRealMethod () can be used for void methods: @Test void whenAddCalledRealMethodCalled() { MyList myList = mock (MyList.class); doCallRealMethod ().when (myList).add (any (Integer.class), any (String.class)); myList.add ( 1, "real" ); verify (myList, times ( 1 )).add ( 1, "real" ); } Has this content helped you? By clicking Accept All, you consent to the use of ALL the cookies. Using mockito, you can make the exception happen. Though in this case we can catch exception from the first method call and wrap it in RuntimeException. Here, we configured an add () method which returns void to throw IllegalStateException when called. doAnswer() : We can use this to perform some operations when a mocked object method is called that is returning void. Mockito provides us with a verify()method that lets us verify whether the mock void method is being called or not. doThrow (): We can use doThrow () when we want to stub a void method that throws exception. Why are physically impossible and logically impossible concepts considered separate in terms of probability? How do you test that a Python function throws an exception? First, let's take the case where we want to test whether our class can handle exceptions thrown by the void method. Thanks for contributing an answer to Stack Overflow! Browse Library. In this article, we will show how to configure the method call to throw an exception using Mockito. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. doAnswer() : We can use this to perform some operations when a mocked object method is called that is returning void. For void methods, mockito provides a special function called doCallRealMethod () which can be used when you are trying to set up the mock. Before I start with my example, a bit about my setup: .lepopup-progress-100 div.lepopup-progress-t1>div{background-color:#e0e0e0;}.lepopup-progress-100 div.lepopup-progress-t1>div>div{background-color:#bd4070;}.lepopup-progress-100 div.lepopup-progress-t1>div>div{color:#ffffff;}.lepopup-progress-100 div.lepopup-progress-t1>label{color:#444444;}.lepopup-form-100, .lepopup-form-100 *, .lepopup-progress-100 {font-size:15px;color:#444444;font-style:normal;text-decoration:none;text-align:left;}.lepopup-form-100 .lepopup-element div.lepopup-input div.lepopup-signature-box span i{font-size:15px;color:#444444;font-style:normal;text-decoration:none;text-align:left;}.lepopup-form-100 .lepopup-element div.lepopup-input div.lepopup-signature-box,.lepopup-form-100 .lepopup-element div.lepopup-input div.lepopup-multiselect,.lepopup-form-100 .lepopup-element div.lepopup-input input[type='text'],.lepopup-form-100 .lepopup-element div.lepopup-input input[type='email'],.lepopup-form-100 .lepopup-element div.lepopup-input input[type='password'],.lepopup-form-100 .lepopup-element div.lepopup-input select,.lepopup-form-100 .lepopup-element div.lepopup-input select option,.lepopup-form-100 .lepopup-element div.lepopup-input textarea{font-size:15px;color:#444444;font-style:normal;text-decoration:none;text-align:left;background-color:rgba(255, 255, 255, 0.7);background-image:none;border-width:1px;border-style:solid;border-color:#cccccc;border-radius:0px;box-shadow:none;}.lepopup-form-100 .lepopup-element div.lepopup-input ::placeholder{color:#444444; opacity: 0.9;} .lepopup-form-100 .lepopup-element div.lepopup-input ::-ms-input-placeholder{color:#444444; opacity: 0.9;}.lepopup-form-100 .lepopup-element div.lepopup-input div.lepopup-multiselect::-webkit-scrollbar-thumb{background-color:#cccccc;}.lepopup-form-100 .lepopup-element div.lepopup-input>i.lepopup-icon-left, .lepopup-form-100 .lepopup-element div.lepopup-input>i.lepopup-icon-right{font-size:20px;color:#444444;border-radius:0px;}.lepopup-form-100 .lepopup-element .lepopup-button,.lepopup-form-100 .lepopup-element .lepopup-button:visited{font-size:17px;font-weight:700;font-style:normal;text-decoration:none;text-align:center;background-color:rgba(203, 169, 82, 1);background-image:linear-gradient(to bottom,rgba(255,255,255,.05) 0,rgba(255,255,255,.05) 50%,rgba(0,0,0,.05) 51%,rgba(0,0,0,.05) 100%);border-width:0px;border-style:solid;border-color:transparent;border-radius:0px;box-shadow:none;}.lepopup-form-100 .lepopup-element div.lepopup-input .lepopup-imageselect+label{border-width:1px;border-style:solid;border-color:#cccccc;border-radius:0px;box-shadow:none;}.lepopup-form-100 .lepopup-element div.lepopup-input .lepopup-imageselect+label span.lepopup-imageselect-label{font-size:15px;color:#444444;font-style:normal;text-decoration:none;text-align:left;}.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-tgl:checked+label:after{background-color:rgba(255, 255, 255, 0.7);}.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-classic+label,.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-fa-check+label,.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-square+label,.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-tgl+label{background-color:rgba(255, 255, 255, 0.7);border-color:#cccccc;color:#444444;}.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-square:checked+label:after{background-color:#444444;}.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-tgl:checked+label,.lepopup-form-100 .lepopup-element div.lepopup-input input[type='checkbox'].lepopup-checkbox-tgl+label:after{background-color:#444444;}.lepopup-form-100 .lepopup-element div.lepopup-input input[type='radio'].lepopup-radio-classic+label,.lepopup-form-100 .lepopup-element div.lepopup-input input[type='radio'].lepopup-radio-fa-check+label,.lepopup-form-100 .lepopup-element div.lepopup-input input[type='radio'].lepopup-radio-dot+label{background-color:rgba(255, 255, 255, 0.7);border-color:#cccccc;color:#444444;}.lepopup-form-100 .lepopup-element div.lepopup-input input[type='radio'].lepopup-radio-dot:checked+label:after{background-color:#444444;}.lepopup-form-100 .lepopup-element div.lepopup-input div.lepopup-multiselect>input[type='checkbox']+label:hover{background-color:#bd4070;color:#ffffff;}.lepopup-form-100 .lepopup-element div.lepopup-input div.lepopup-multiselect>input[type='checkbox']:checked+label{background-color:#a93a65;color:#ffffff;}.lepopup-form-100 .lepopup-element input[type='checkbox'].lepopup-tile+label, .lepopup-form-100 .lepopup-element input[type='radio'].lepopup-tile+label {font-size:15px;color:#444444;font-style:normal;text-decoration:none;text-align:center;background-color:#ffffff;background-image:none;border-width:1px;border-style:solid;border-color:#cccccc;border-radius:0px;box-shadow:none;}.lepopup-form-100 .lepopup-element-error{font-size:15px;color:#ffffff;font-style:normal;text-decoration:none;text-align:left;background-color:#d9534f;background-image:none;}.lepopup-form-100 .lepopup-element-2 {background-color:rgba(226,236,250,1);background-image:none;border-width:1px;border-style:solid;border-color:rgba(216,216,216,1);border-radius:3px;box-shadow: 1px 1px 15px -6px #d7e1eb;}.lepopup-form-100 .lepopup-element-3 * {font-family:'Arial','arial';font-size:26px;color:#333333;font-weight:normal;font-style:normal;text-decoration:none;text-align:center;}.lepopup-form-100 .lepopup-element-3 {font-family:'Arial','arial';font-size:26px;color:#333333;font-weight:normal;font-style:normal;text-decoration:none;text-align:center;background-color:transparent;background-image:none;border-width:1px;border-style:none;border-color:transparent;border-radius:0px;box-shadow:none;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.lepopup-form-100 .lepopup-element-3 .lepopup-element-html-content {min-height:36px;}.lepopup-form-100 .lepopup-element-4 * {font-family:'Arial','arial';font-size:19px;color:#555555;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;}.lepopup-form-100 .lepopup-element-4 {font-family:'Arial','arial';font-size:19px;color:#555555;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;background-color:transparent;background-image:none;border-width:1px;border-style:none;border-color:transparent;border-radius:0px;box-shadow:none;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.lepopup-form-100 .lepopup-element-4 .lepopup-element-html-content {min-height:63px;}.lepopup-form-100 .lepopup-element-5 * {font-family:'Arial','arial';font-size:13px;color:#555555;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;}.lepopup-form-100 .lepopup-element-5 {font-family:'Arial','arial';font-size:13px;color:#555555;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;background-color:transparent;background-image:none;border-width:1px;border-style:none;border-color:transparent;border-radius:0px;box-shadow:none;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.lepopup-form-100 .lepopup-element-5 .lepopup-element-html-content {min-height:60px;}.lepopup-form-100 .lepopup-element-6 * {font-family:'Arial','arial';font-size:13px;color:#333333;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;}.lepopup-form-100 .lepopup-element-6 {font-family:'Arial','arial';font-size:13px;color:#333333;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;background-color:transparent;background-image:none;border-width:1px;border-style:none;border-color:rgba(216,216,216,1);border-radius:0px;box-shadow:none;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.lepopup-form-100 .lepopup-element-6 .lepopup-element-html-content {min-height:auto;}.lepopup-form-100 .lepopup-element-0 * {font-size:15px;color:#ffffff;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;}.lepopup-form-100 .lepopup-element-0 {font-size:15px;color:#ffffff;font-weight:normal;font-style:normal;text-decoration:none;text-align:left;background-color:#5cb85c;background-image:none;border-width:0px;border-style:solid;border-color:#ccc;border-radius:5px;box-shadow: 1px 1px 15px -6px #000000;padding-top:40px;padding-right:40px;padding-bottom:40px;padding-left:40px;}.lepopup-form-100 .lepopup-element-0 .lepopup-element-html-content {min-height:160px;}. Has 90% of ice around Antarctica disappeared in less than a decade? Find centralized, trusted content and collaborate around the technologies you use most. Here, we shall discuss "How to Mock Void method with Mockito". WebVoid method throws an exception Question: Write a java program that uses Mockito on a method that returns a void and throws an exception. The difference between the phonemes /p/ and /b/ in Japanese. 3. What does the SwingUtilities class do in Java? That's why you cannot find the versions on the official maven repo :). Can you write oxidation states with negative Roman numerals? The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. Example service class We will be testing simple ThrowingService that has two methods: Learn how to use AssertJ for performing assertions on exceptions. Using Junit5, you can assert exception, asserts whether that exception is thrown when testing method is invoked. when(testingClassObj.testSomeMethod).thenThrow(new CustomException()); Using Junit5, you can assert exception, asserts whether that exception is thrown when testing method is invoked. What is the point of Thrower's Bandolier? Not the answer you're looking for? We can stub a void method to throw an exception using doThrow(). Comment . Mockito provides following methods that can be used to mock void methods. Why are physically impossible and logically impossible concepts considered separate in terms of probability? cacheWrapper.putInSharedMemory ("key", "value"); EasyMock.expectLastCall ().andThrow (new RuntimeException ()); Check: http://easymock.org/api/org/easymock/internal/MocksControl.html#andVoid-- Finally, be aware that you can doCallRealMethod() as well. Source: (Example.java) import org.mockito.Mockito; import static org. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. will catch-exception still print the stacktrace? @fge added powermockito just because it offered another solution, but as noted in attempt 3, it's a bad idea :), Well, for instance, with pure mockito, you can do. Making statements based on opinion; back them up with references or personal experience. WebIt doesn't return a value, so it throws an exception. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. }. Mockito provides us with a verify()method that lets us verify whether the mock void method is being called or not. Now, if we don't want to simulate the processing of this method, this call itself is sufficient to mock the method. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Linear Algebra - Linear transformation question, Styling contours by colour and by line thickness in QGIS. I have always this error: PowerMockito allows you to do things that Mockito or EasyMock dont. Learn how your comment data is processed. Asking for help, clarification, or responding to other answers. Sometimes I'll end up needing to write a test case which wants to mock a void-returning method, for instance to throw an exception: Unfortunately this doesn't work, as we receive the following compilation error: And in IntelliJ, we we see the following cryptic error: This is because Mockito can't mock a void as such, and instead we need to use doThrow(): This post's permalink is https://www.jvt.me/posts/2022/01/18/mockito-void-throw/ and has the following summary: The canonical URL for this post is WebUse doThrow() when you want to stub the void method to throw exception of specified class.. A new exception instance will be created for each method invocation. We can stub a void method to throw an exception using doThrow (). @JoeC yes, but: except for the most simple tests, you are probably doing things to do your test case-specific setup; depending upon what you're catching, one of these setup actions might throw the same exception, giving the impression your test passes, when in fact it doesn't. WebIt doesn't return a value, so it throws an exception. This means we have work with the following methods to mock a void method: doThrow (Throwable) doThrow (Class) doAnswer (Answer) doNothing () doCallRealMethod () This is the class we will be using for the examples. Why do academics stay as adjuncts for years rather than move around? The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Mockito How to mock and assert a thrown exception? I have tried lot of ways to do this but none of them work. What am I doing wrong here in the PlotLegends specification? doThrow () : Throw exception when mocked void method is called doCallRealMethod () : Do not mock and call real method 1) Using doNothing () If we just want to completely ignore the void method call, we can use doNothing (). How can I check before my flight that the cloud separation requirements in VFR flight rules are met? @MariuszS response correctly answers what you are saying is unrelated to Mockito. For this, we'll have to mock the method in such a way that it throws these exceptions. org.junit.jupiter.api.extension.ExtendWith, org.mockito.junit.jupiter.MockitoExtension, org.assertj.core.api.AssertionsForClassTypes.assertThatThrownBy. All trademarks and registered trademarks appearing on Java Code Geeks are the property of their respective owners. In this article, we will show how to configure the method call to throw an exception using Mockito. How do you assert that a certain exception is thrown in JUnit tests? Other than that we can also make use of doNothing () and doAnswer () APIs. Mockito provides following methods that can be used to mock void methods. Exception as an Object What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Firstly, your method deleteTableEsiti() never throws any exception. Besides reading them online you may download the eBook in PDF format! Acidity of alcohols and basicity of amines, Identify those arcade games from a 1983 Brazilian music video. 1 Answer Sorted by: 1 Firstly, your method deleteTableEsiti () never throws any exception. Since none of your classes are final, you can use "pure mockito" without resorting to PowerMockito: Note that "method arguments" to a stub are in fact argument matchers; you can put specific values (if not "surrounded" by a specific method it will make a call to .equals()). : an exception is thrown) then you know something went wrong and you can start digging. 4. If we want to throw an exception when method is called, we can use doThrow() method of mockito. I can't see this version in Maven Repo yet. Comment . How do you assert that a certain exception is thrown in JUnit tests? Why is printing "B" dramatically slower than printing "#"? WebVoid method throws an exception Question: Write a java program that uses Mockito on a method that returns a void and throws an exception. Both are different frameworks. this approach is unacceptable for case when you're testing method of an object that has some state. Now, when you want to write test case for this method, how can we test that the void method was called? The project has dependencies for PowerMock and EasyMock. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, @AndyTurner I would argue that if you have more than one thing that could throw a. I wonder though if this depends on any behaviour of the code under test. But no exception is thrown in the subsequent calls to customer.eat(dish). Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. I've never heard of catch-exception, but it doesn't exactly seem like an up-to-date library: the last update to the main source code (at the time of writing) was on May 3 2015. 2 How do you throw an exception in PowerMock? Mock void method's try catch block and catch exception using EasyMock or Mockito. Methods that return void can't be used with when. My code is GPL licensed, can I issue a license to have my code be distributed in a specific MIT licensed project? Now, if we don't want to simulate the processing of this method, this call itself is sufficient to mock the method. Please consider supporting me so I can continue to create content like this! Exception as an Object His expertise lies in test driven development and re-factoring. : an exception is thrown) then you know something went wrong and you can start digging. In your test, first perform the action under test then call verify() not the other way around. Example Step 1 Create an interface called CalculatorService to provide mathematical functions File: CalculatorService.java The usual way to stub a non-void method is: But note that eat() doesnt return anything so naturally we wont be able to use the above style of API. Mutually exclusive execution using std::atomic?