Mockito Mock Method With Parameters

To check if a method was called on a mocked object you can use the Mockito. This class has no equals() method implemented and I had to keep it in a method’s. Mocking with Mockito (and without Spring) As a mocking framework, we'll use Mockito, since it's well-rounded, well-established, and well-integrated into Spring Boot. Mockito is a mocking framework which enables mock creation, verification and stubbing. Here's the full test method:. The latter is the framework recommended on developer. Prerequisites. You can vote up the examples you like and your votes will be used in our system to generate more good examples. Generally, you first need to create a mock object with Mockito. Overview In this tutorial, we'll investigate how to capture arguments that are passed into mocked methods. With ts-mockito you specify the operation to match on the mock object within wrapper functions, and then use another function to specify which method to proxy calls to. doThrow() if you want to throw an exception from the mocked void method. Mock some methods on an object. i have mocked required object for testing void method. It gives an ability to a developer to write his/her code without depending on other developer's code. packagename. Rather, using fields for these mocks removes the duplication. Other testing tutorials: How to mock static, private methods (Powermock tutorial) Unit testing void methods using verify and ArgumentCaptor Mockito Deep Stubs Example Selenium based automated test using Java, JUNIT and Maven – Example When you need to unit test methods containing void methods which…. Use Mockito to mock autowired fields January 21, 2014 Testing IoC , Mockito , Spring , TestNG Lubos Krnac EDIT: Field injections are widely considered (including myself) as bad practice. Thank you very much! I converted it to google code wiki format and put it up on the webpage now. Verify in Mockito simply means that you want to check if a certain method of a mock object has been called by specific number of times. The reason for this is that Mockito is having to be very clever with its architecture to match up the Matchers you are using with the parameter you are meaning the Matcher to apply to. mock(DiscountCalculator. With ScalaTest 1. Most situations can be tested using mocks (see Mockito) and unit tests. Now that I was familiar with JUnit framework, I took a step forward to learn Mockito as it eases our unit testing and here is how I started. java Rust javascript spring xml Spring Boot java 8 kotlin mysql angularjs maven sql jsf jsf2 junit php tomcat eclipse array aws webdynpro sap jdbc Stream intellij postgresql mockito ec2 installation docker @Configuration apache commons lambda validation oop html5 AngularJS Tutorial ruby winxp controller jpa jar Thread html class Windows Command. Join a community of over 2. Adding mockito as dependency to the project. I'm using JUnit 4 and Mockito for my test cases. 6m developers to have your questions answered on Mock a private Method of class with a private Constructor of JustMock General Discussions. MockSettings apply ( MockReset reset, org. Related Posts. Also it is a very complicated to generate an instance of it, therefore we create a mock of it that will passed as a parameter. mock(PluginLicense. How to verify that void methods were called using Mockito Mockito is one of the most popular mocking frameworks for java. The method in question here, getContentStringValue, is NOT final and NOT static. 4 you can verifyNoMoreInteractions() in order-sensitive way. You can use methods like anyInt() of class org. Create as many ArgumentCaptor instances as the number of arguments in the method. I’m most familiar with NSubstitute so the syntax of Mockito seemed pretty strange at first, so before I forget it all I’ve made myself a cheat sheet. InjectedClass Mockito cannot mock/spy function is only taking a Non-Null parameter! However, in Mockito,. Missing equals() method. Mocking static methods with Powermockito I am trying to mock static method with PowerMockito. It tells Mockito to mock an Iterator class instance. 簡単な使い方としては、Mockito#mock like a parameter passed to a function. co/SDOmEt8ZYq. The corollary is that when an *unstubbed* method is called *on the spy* but *not on the real instance*, you won't see any effects on the real instance. pass in our view variable and then, 2:03. Here is a recap of the need: This is what I usually write to mock a method of a real object (usually to return a mock):. com Mockito keeps track of all the method calls and their parameters to the mock object. Mockito Stubbing Consecutive Calls. You can also check if a method was called with certain parameters: Mockito. @Mock private ModelFactory creates a mock object of type ModelFactory. The return type of this method is declared as the formal type parameter (remember that we use the Mockito. In this section, we will add Mockito dependencies to our existing projects. Mockito is considered a mocking framework, but according to the Mockito FAQ, it is more accurately a Test Spy framework that allows you to verify behavior and stub methods. Mockito works in any environment. First potential code smell is reset() in the middle of the test method. I am very much a Mockito newb, so can't explain the following behaviour: if there's an expert out there who can improve this answer, please feel free. Everytime a mock returns a mock a fairy dies — Damian Guy (@damianguy) 18. Mockito Tutorial; Part 2 - How To Mock Methods With Mockito; Part 5 - Mockito Mock vs Spy; Part 3 - How To Mock Void Methods With Mockito; Part 4 - How to verify the mocks in Mockito; Part 1 - What is Mock Object? What is Mockito? JUnit Tutorial; Part 6 - Assert for Exception in JUnit; Part 5- Complete guide for Hamcrest Matchers; Part 4. Mocks and Spies in Mockito as the template parameter. Because Mockito checks all the arguments passed to the mock’s Java methods, the verification fails, since the last argument from the invocation does not match that from the verification. Mockito - Wanted but not invoked: Actually, there were zero interactions with this mock Tag: java , unit-testing , mockito , junit4 I know there are already at least two same questions asked, but I still can't figure out why I am getting the exception. Mockito API is not robust enough if it supports mocking with constructor but not when one has any constructor parameters. I can do the following easily enough:. It tells Mockito to mock an Iterator class instance. | 4 Answers. There are several things that Mockito is not supporting, but one of them is mocking of static methods. stub the hello method in MyClass1 when the parameter arg is. Use Mockito to return the Application instance when FacesContext. argThat(org. I'm using JUnit 4 and Mockito for my test cases. verify(mock, times(n)) to verify if method was executed 'n' times. Create as many ArgumentCaptor instances as the number of. See also Mockito. You can not mock final classes and static methods. Is there a clean method of mocking a class with generic parameters? Say I have to mock a class Foo which I need to pass into a method that expects a Foo. Section 2 Configuring Mockito. Notice that we also use Mockito. Sometimes it's better to implement equals() for arguments that are passed to mocks (Mockito naturally uses equals() for argument matching). class); #2) Mock creation with Annotations. If you continue browsing the site, you agree to the use of cookies on this website. It turns out that when using @InjectMocks annotation, Mockito injects mocks only to the constructor, leaving the fields undefined. JDBC DAO Unit Test using Mockito For some, it's hard to think of unit testing a DAO without actually interacting with a database. Mockito verifies argument values in natural java style: by using an equals() method. But the best kind of test doesn't use Spring at all, so let's first look at how to use Mockito in a plain unit test to mock away unwanted dependencies. Works with or without methods that require arguments. 0 GA ===== The following copyright statements and licenses apply to various open source software packages (or portions thereof) that are distributed with this Pivotal Software, Inc. Firstly I create the mock differently, using the mock method in MockObjectTestCase rather than the constructor. That is why I decided to create and share refactoring considerations alongside with examples and workarounds for unusual mocking. add the change text of your text and pass on our string. PowerMock provides additional power to Mockito mocking library which is described in Mock JUnit tests with Mockito example post. getConnection, but I have no idea about how to mock a static method. In Mock JUnit tests with Mockito example post, I have shown how and why to use Mockito java mocking framework to create good unit tests. Take a look at the following cod. 3 thoughts on “ how to test the server call with Mockito, Retrofit and RxJava ”. Missing equals() method. pdf), Text File (. how to mock internal method call using mockito/powermockito Tag: java , junit , mockito , powermock I am testing a method in class which in turn calls another artifacts' method and consume return value in it. import org. I'm fascinated by how easy it is to use, compared to other things out there both in the Java and. Mockito keeps track of all the method calls and their parameters to the mock object. A mock object returns a dummy data corresponding to dummy input passed to it. You can vote up the examples you like and your votes will be used in our system to generate more good examples. It tells Mockito to mock an Iterator class instance. Mocks and Spies in Mockito as the template parameter. A common thing I come across is that teams using a mocking framework assume they are mocking. up vote 4 down vote ---Accepted---Accepted---Accepted---. In computer science, the term Mock Trainwreck refers to the difficulty of mocking a deeply nested model structure. In Mockito, a side effect happens to the real method invocation. Mocks and Spies in Mockito as the template parameter. PowerMock provides different modules to extend Mockito framework and run JUnit and TestNG test cases. Mockito is a convenient mocking library for Java. The following are top voted examples for showing how to use android. Here's the full test method:. *; Matchers can be combined to tighten or loosen the specification if necessary. Mockito doesn't mock final methods so the bottom line is: when you spy on real objects + you try to stub a final method = trouble. Conclusion and Limitations of Mockito. package verifyMethods. I want to test the class Service by calling the method 'method1' with mocked parameter (objects of Class1 & Class2). And the second parameter is the returned Object. From compiler point of view, it is only Java code, that should be checked for safety and correctness before compiling. 0 Mockito provides the official (built-in) support for managing a mocking life cycle if JUnit 5 is used. Whatever the mocking framework one uses, a common feature is the ability to mock interfaces, through the JDK Proxy class. Mockito is a framework that facilitates mocking in the tests. argThat(org. Redefining them might break Mockito. Although Mockito is very effective, it has a few limitations. As you may see Mockito is quite handy when writing your tests. Mockito argument methods are defined in org. Also, notice the how the behaviour of method isEmpty() is mocked below. doThrow - Then there is Mockito. With Mockito, you create a mock, tell Mockito what to do when specific methods are called on it, and then use the mock instance in your test instead of the real thing. When doing verification that a method was called exactly once, then we use:. File: MathApplicationTester. Use Mockito to return the Application instance when FacesContext. This line does call the original method getContentStringValue:. A spy helps to call all the normal methods of the object while still. I'm using JUnit 4 and Mockito for my test cases. I want to test an event (dialogEvent) which is being triggered from a material dialog instance with ts-mockito: myFunc() { this. The below example shows how to mock an autowired @Value field in Spring with Junit mockito framework. It is possible to control what mock returns if called with whatever value or if called with a specific value. Finally, this library exposes a new whenever() method that can be used freely, without the need for back-ticks like we had to when using Mockito's native when() method. @Anonymous - you're really just asking how to use Mockito. verify(someMock). I'd like to validate the parameters passed to DriverManager. package verifyMethods. In current post I will show how to improve test coverage by adding more scenarios. In any other cases, if f is a function of 1 parameter, the array of the method parameters will be passed and if the function has 2 parameters, the second one will be the mock. Whatever the mocking framework one uses, a common feature is the ability to mock interfaces, through the JDK Proxy class. In this recipe, we will stub a void method that doesn't return a value. Plain Mockito Test. For example, you can verify that a method has been called with certain parameters. You can invoke methods, but will get the default values, or null, back. doThrow – Then there is Mockito. Is there a good way to mock/verify this specific use-case. It is easy and its learning curve is almost flat. verify(someMock). I'm using JUnit 4 and Mockito for my test cases. Plain Mockito Test. Note that org. Also, notice the how the behaviour of method isEmpty() is mocked below. Our ambition is that Mockito “just works” with final classes and methods. We do not create real objects, rather ask mockito to create a mock for the class. Beyond Mocking with PowerMock on any third-party mocking API either (like EasyMock and Mockito). The test has a dataprovider defined which seems to cause problems when running. In Spock we can also get a hold on the arguments that are passed to a method call of a mock and we can write assertions to check the parameters for certain conditions. For example, if custom argument matcher is not likely to be reused or you just need it to assert on. android - Mock static method with Context as parameter using PowerMockito - save accounts sharedpreferences. Static and Void methods of Mocking. If we were to test the method doSomething() what we would be interested in, perhaps mostly is to make sure that the collaborator that it uses is reached and the appropriate parameters are passed. As of February 2014, the latest Mockito version is 1. ''' This patch enhances the MockSettings#useConstrctor() method and adds optional ellipsis arguments that are passed to the constructor. spy instead. What is mocking in Java? Automatic unit test generation, with a single button-click, includes all of the mocking and validations you need to improve existing tests based on runtime data, with support for parameterized tests, Spring Application tests, and PowerMock. You can even capture all the intermediate mocks in a list (I called it a mock chain), and expose the first element of the list with head. Beyond Mocking with PowerMock on any third-party mocking API either (like EasyMock and Mockito). Purpose: Unit testing…. Mock will be created by Mockito. Testing with mock objects. packagename. We could do that very easily by just verifying on a mock. When the MockitoJUnitRunner executes the test, Mockito creates mocks and spies instances for all fields that are annotated with the @Mock or the @Spy annotations. 7) You can create a mock with specified strategy for its. Mocking static methods with Powermockito I am trying to mock static method with PowerMockito. This is because the scope of the mocks is limited to the test method where they are specified. I am very much a Mockito newb, so can't explain the following behaviour: if there's an expert out there who can improve this answer, please feel free. Line 41 - 43 teaches the DAO mock behavior (stubs the DAO). We usually need to mock lots of functionality while writing unit tests. How do I make the method return type generic? How to get the type of T from a member of a generic class or method? Passing a single item as IEnumerable How to make mock to void methods with mockito ; Is List a subclass of List? Why are Java generics not implicitly polymorphic?. import org. Your votes will be used in our system to get more good examples. Mocking only Abstract Methods using Mockito (Partial Mocking) I remember back in the days, before any mocking frameworks existed in Java, we used to create an anonymous-inner class of an abstract class to fake-out the abstract method's behaviour and use the real logic of the concrete method. junit - How do I mock any arguments to a private method using PowerMockito? I'm using Mockito 1. How to mock void methods with mockito - there are two options: doAnswer - If we want our mocked void method to do something (mock the behavior despite being void). never() - it is more explicit and communicates the intent well. So, the main topic for Part 2 is Mockito’s @Mock Annotation. Is there a good way to mock/verify this specific use-case. Mocking only Abstract Methods using Mockito (Partial Mocking) I remember back in the days, before any mocking frameworks existed in Java, we used to create an anonymous-inner class of an abstract class to fake-out the abstract method’s behaviour and use the real logic of the concrete method. You can also stub method with your own implementation. Mockito provides following methods that can be used to mock void methods. A mock frameworks allow to create mock object as simple as possible. Mockito allows verification on which of mock's methods has been called and how many times. So, I developped some methods using mockito. Mockito is a powerful mock/stub library for unit tests in Java. Mocking Void Methods With Mockito. An Introduction to Different Types of Matchers in Mockito. Here we've added one mock method calls, add() to the mock object via when(). Tutorial #5: Top 12 Mockito Interview Questions Mockito Interview Questions and answers with sample code examples. mockito provides a mocking framework. Starting with the version 2. Purpose: Unit testing…. Spying with Mockito - to call or not to call a method There are two ways to mock the method doSomeStuff() When i finally used "when" with only one parameter. This book explains the concept of Test Driven Development (TDD), including mocking and refactoring, as well as breaking down the mystery and confusion that surrounds the test first approach of TDD. 6m developers to have your questions answered on Mocking methods with optional parameters? of JustMock General Discussions. MockitoPostProcessor (Set definitions) Create a new MockitoPostProcessor instance with the given initial definitions. It caught me off guard when the question was asked (the question came first thing in the morning on an iteration planning day), so I didn't just rattle off an answer. Starting with the version 2. A mock does not require the implementation of the methods to be written yet as you can assign values when a method is called by the power of mockito. Creating Mock Objects. junit - How do I mock any arguments to a private method using PowerMockito? I'm using Mockito 1. open(DialogComponent). If you have too many mocks then refactor the code so that it's easy to test/debug without necessity of naming mocks. static void: (Class) has to be passed to the mocksAndMarkers parameter. It is often said on forums that "you don't want that" or "your code is badly designed" etc. Mockito is considered a mocking framework, but according to the Mockito FAQ, it is more accurately a Test Spy framework that allows you to verify behavior and stub methods. If you didn’t read the first part I highly reccommend you to do it…. In all your JUnit test classes, make sure you do a static import of the Mockito library: import static org. Generally speaking, mocking private and static methods come under the category of unusual mocking. In mockito, if you want to check only that the DAO delete method is called with the correct parameter, then verify is what you want. Here, a mock object of java. The dynamic proxy created by CGLIB is actually a transient subclass of original class being proxyed. I was learning from this tutorial:. let's see how we can handle the assert step using my Mockito. MockitoPostProcessor (Set definitions) Create a new MockitoPostProcessor instance with the given initial definitions. A Guide to Mocking With Mockito //Using Answer to set an id to the customer which is passed in as a parameter to the mock method. You can vote up the examples you like and your votes will be used in our system to generate more good examples. At times I've created a test stub that overrides the iterator method and stubs the iterator, other times I have used mockito to mock the iterator. The method would look like this:. When using this method, we can leverage type inference so we can call the method without passing any additional parameters. Example : mockReturnObject("myServiceId. Right now, the mat-dialog overlay is covering the entire page and mat-dialog is on the center of the page as shown below. Mockito is a mocking framework for Java which is extremely easy to use, so this post will discuss all the cool features you need to know about mockito with simple and easy examples. 3: Mockito lets you look at what arguments were used to call a mocked-out method after the method was called by using an ArgumentCaptor. Mockito doesn't mock final methods so the bottom line is: when you spy on real objects + you try to stub a final method = trouble. IllegalArgumentException: com. Finally the unit tests. I tried to do this using Mockito (yes, we are using Mockito as our core mocking tool):. mock(Class classToMock) as factory method). When the MockitoJUnitRunner executes the test, Mockito creates mocks and spies instances for all fields that are annotated with the @Mock or the @Spy annotations. There are several things that Mockito is not supporting, but one of them is mocking of static methods. Post summary: How to do data-driven testing with JUnit parameterized tests. * This extension also supports JUnit Jupiter's method parameters. You can vote up the examples you like and your votes will be used in our system to generate more good examples. This ensures that the flow of the program is as expected. PowerMock provides additional power to Mockito mocking library which is described in Mock JUnit tests with Mockito example post. Mockito provides the concept of the "argument matcher" (using the class ArgMatcher) to capture arguments and to track how named arguments are passed. What will happen is the real method will be called *on mock* but *not on the real instance* you passed to the spy() method. That is why I decided to create and share refactoring considerations alongside with examples and workarounds for unusual mocking. Mockito reminded me a little bit of that show “Overhaulin” in regards to a very simple and clean interface for mocking objects and stubbing method calls. Is there a good way to mock/verify this specific use-case. IDE auto-complete with ts-mockito Advanced features. verify(mock, times(n)) to verify if method was executed 'n' times. Mocking with Mockito (and without Spring) As a mocking framework, we’ll use Mockito, since it’s well-rounded, well-established, and well-integrated into Spring Boot. To understand this, you need to know when a real method invocation happens. All the examples in this article use static methods. stub the hello method in MyClass1 when the parameter arg is. Beyond Mocking with PowerMock on any third-party mocking API either (like EasyMock and Mockito). change state or call another method. 6m developers to have your questions answered on Mocking methods with optional parameters? of JustMock General Discussions. The trick with void methods is that Mockito assumes that they do nothing by default, so there is no need to explicitly stub them (although you may do it). You can use the verify() method on the mock object to verify that the specified conditions are met. The following code is from my @Test method. In general, mocking is not a practice that is conducive to good automated tests. Basically, doAnswer allows stubbing a void method with a generic answer. Note that PowerMock doesn't support JUnit 5 yet, so we will create JUnit 4 test cases. If it exists, it will replace that bean with a Mockito mock. When using this method, we can leverage type inference so we can call the method without passing any additional parameters. With a mock instance, I can then dictate how I wish certain methods. It is done using the verify() method. That run method is never executed. This issue needs to be fixed, whose only solution is to use this gist or new up the mock in the @beforemethod (which didn't seem reasonable). Let's look at a simple example of mocking exception and return a response when a method is called with same parameters. Mockito Behavior Verification. This line tells PowerMock to verify a specific method, unlike Mockito, where this information is provided by the mock object as a parameter in Mockito. A lot was done in above example. MockSettings apply ( MockReset reset, org. Most situations can be tested using mocks (see Mockito) and unit tests. This is a fantastic improvement that demonstrates Mockito’s everlasting quest for improving testing experience. How to verify that void methods were called using Mockito Mockito is one of the most popular mocking frameworks for java. We can use Mockito verify methods at the end of the testing method code to make sure that specified methods are called. Take a look at the following cod. For simple stubbing, with just need to use thenReturn() or thenThrow() in case of exception. They are not aware that Mocks are just one of a number of 'Test Doubles' which Gerard Meszaros has categorised at xunitpatterns. To check if a method was called on a mocked object you can use the Mockito. @Mock private ModelFactory creates a mock object of type ModelFactory. doThrow() if you want to throw an exception from the mocked void method. *; Matchers can be combined to tighten or loosen the specification if necessary. co/SDOmEt8ZYq. When I write tests I try to follow an explicit pattern, called the build-operate-check pattern. Please note, that stubbing properties that don't have getters only works if Proxy object is available (ES6). Mockito Tutorial (A comprehensive guide with examples) Javacodehouse. To start using Mockito, you need to add it in as a test dependency to your gradle script. For example, you can verify that a method has been called with certain parameters. How to inject mocks; How to mock methods with Mockito; How to mock void methods with Mockito; 2 Ways to test void methods with Mockito; Spying with Mockito. To add a behavior to the mocked class when() and thenReturn() functions are used. verify method: Mockito. In this lesson, we'll explain how the never() verification mode works and how it is used to verify that a method was never called. Mockito is a popular mock framework which can be used with JUnit. To capture and verify all the method arguments passed to a method when it is invoked multiple times, we shall follow below steps: Use Mockito. I was worried that such examples without any guidance can be widely used by teammates not deeply experienced in mocking frameworks. To my knowledge, you can’t mock constructors with mockito, only methods. Finally the unit tests. Sometimes it's better to implement equals() for arguments that are passed to mocks (Mockito naturally uses equals() for argument matching). Mockito provides several ways to define mock behavior, and several ways to validate invocations occurred. In the mock code you showed, in the setup method you mock a pluginLicense object. The final mock method that is covered within this article is the variant with a parameter of the MockSettings type. That is why I decided to create and share refactoring considerations alongside with examples and workarounds for unusual mocking. For this purpose, we’ll use the ArgumentCaptor class of Mockito. verify to check its use. We use JUnit, Mockito, MockMvc to Unit test Spring MVC Rest Service. Now that I was familiar with JUnit framework, I took a step forward to learn Mockito as it eases our unit testing and here is how I started. Syntax is the same as with getter values. With a mock instance, I can then dictate how I wish certain methods. On a Mock Object returned by a EasyMock. Mockito allows you to create and configure mock objects. mock(Class classToMock) as factory method). Why mock? 3. In all these cases, we might have to pass an ExecutorService as a parameter. Okay, to write down the reason I think mock sharing by parameter is not a good idea: First of all, there is a lot of duplicate code. Unit testing asynchronous methods with Mockito After promising that I would be writing and maintaining my blog, here I go again (3289423987 attempt). getBundle methods. This line tells PowerMock to verify a specific method, unlike Mockito, where this information is provided by the mock object as a parameter in Mockito. getConnection, but I don't know how to mock a static method. bla("param 1");. It is very useful for unit testing of service layer classes. Mockito is able to create “smart proxies” (a. Since Mockito 2. Mockito provides an ArgumentCaptor class which, as the name implies, can be used to capture arguments for further assertion. Mockito features demonstrated: creating and injecting mocks; stubbing methods also with setting different behavior for consecutive method calls. The return type of this method is declared as the formal type parameter (remember that we use the Mockito. Two of the most famous mocking frameworks EasyMock and Mockito, don't offer out of the box support for mocking final and static methods. Our ambition is that Mockito “just works” with final classes and methods. In any other cases, if f is a function of 1 parameter, the array of the method parameters will be passed and if the function has 2 parameters, the second one will be the mock. To spy or to Mock. getResourceBundle 3. Mock some methods on an object. Simple verify method:. For mocking static functions we have a bit different approach due to their different nature. When you use static mock method, you do not need to put @RunWith(MockitoJUnitRunner. Mockito is a fantastic mock library for Java. Mock: The SUT usually has dependencies that are necessary for the SUT to work. junit - How to mock a method which takes Class as php - Sorting Array of Categories - javascript - custom tag containing data in option mysql - PHP change variable to corresponding type calculate Dynamicaly height of DOM in AngularJS - sql server - How to pass a parameter to an SQL scr Define 2 plotted lines in an image as. With the new release of PowerMock 1. It turns out that when using @InjectMocks annotation, Mockito injects mocks only to the constructor, leaving the fields undefined. Sample Application Let's first look at our sample application. In general mocking is used to “empty” a class from its logic: a mocked instance does not have code insides the methods. It is a popular and widely used library. With ts-mockito you specify the operation to match on the mock object within wrapper functions, and then use another function to specify which method to proxy calls to. From compiler point of view, it is only Java code, that should be checked for safety and correctness before compiling. * Use parameters for initialization of mocks that you use only in that specific test method. Feel free to use annotations instead, but make sure that you agree on a single solution with the rest of your team, so that unit tests are written in a common format.