I am trying to mock
ZoneId customerTimeZone = extractFromCustomer(location)
.map(someService::getZoneByChannel)
.orElseThrow()
Using spock is there a way I can mock the entire extractFromCustomer(location)... chain to just return a ZoneId object?
Related
In my prod code I have the following queryDsl query:
Collection<String> myList = new ArrayList<>();
myList.add("blue");
myList.add("green");
myList.add("yellow");
QAnimal qAnimal = QAnimal.animal;
return animalRepository.exists(
qAnimal.color.in(myList).and(
qAnimal.name.eq("animal_name")
)
);
I want to mock this queryDsl query using Mockito. In my test file, in the setup method I did:
Collection<Book> myList = new ArrayList<>();
myList.add("blue");
myList.add("green");
myList.add("yellow");
QAnimal qAnimal = QAnimal.animal;
when(qAnimal.color.in(myList)).thenReturn((Expressions.asBoolean(false)));
when(qAnimal.name.eq("animal_name")).thenReturn((Expressions.asBoolean(true)));
When running the test, I receive the following problem:
org.mockito.exceptions.misusing.MissingMethodInvocationException:
when() requires an argument which has to be 'a method call on a mock'.
For example:
when(mock.getArticles()).thenReturn(articles);
Also, this error might show up because:
1. you stub either of: final/private/equals()/hashCode() methods.
Those methods *cannot* be stubbed/verified.
2. inside when() you don't call method on mock but on some other object.
I can't create a JPAQuery object, only use that kind of queries.
Why would you mock JPAQuery? At this point you're either testing the internals of Querydsl, or making sure that you wrote what you wrote. Just mock the entire AnimalRepository instead. And if you want to test animalRepository properly, its best to do so in an integration test that actually executes the query against a database. There is also the possibility to execute the query against mock data using querydsl-collections.
If you insist on mocking JPAQuery with Mockito stubs however, the easiest way to mock builder API's, like for example JPAQuery, is to use Answers.RETURNS_SELF as default stub.
For example, use the following to instantiate your queryMock:
#Mock(answer = Answers.RETURNS_SELF) JPAQuery queryMock;
Help me understand how to mock a service method inside a controller for unit testing in grails using JUnit
I was trying to write a unit test case for my controller "add".
void testAdd_UT_03(){
......declaring and assigning prerequisites
controller.add() // This is the controller i want to unit test
.... asserting
}
//Controller
def add{
def a =someService.method()
}
Inside controller, some service methods are getting called which in turn is using HQL statements. Since i could not find a way to deal with HQL statements in unit testing, i want to mock the service method itself. ( i want the service method to return the predefined output).
Could someone please explain how to achieve this?
Could you also explain when to use mockController? what we really achieve by mocking something? ( i dint get the real picture as i am entirely new to this)
Thanks in advance,
BK
you can add the following code in the setUp method of your test to mock the service method and when you call the method "add" method on your controller it will call the mocked service method.
def predifinedOutput
void setUp(){
def mockControl = mockFor(YourService)
//params are the parameters passed to the service method
mockControl.demand.yourServiceMethod(0..10) { params->
predifnedOutput = "predifinedOutput"
return "predefined output"
}
controller.yourService = mockControl.createMock()
}
I'm trying to write some basic backingBean tests but I'm stuck with mocking the UserContext and facesContext.
This code is in the code that I'm trying to test:
UserContext uc = ContextProvider.getContext();
Locale locale = uc.getLocale();
ResourceBundle bundle = ResourceBundle.getBundle("AppMessages", locale);
String message = bundle.getString("this.is.the.message.key");
In another block of code I've got the following:
FacesContext fc = FacesContext.getCurrentInstance();
fc.getExternalContext().redirect(handleRedirect("someString"));
How could I mock these in a standard jUnit test using only mockito? Or do I have to use something like PowerMock?
Mockito can't mock static methods. You have a few options though:
Extract the code under test to methods which takes the UserContext and ResourceBundle or FacesContext instances as arguments
Wrap the static method calls in a factory object, and pass the factory objact instance as an argument to the code under test
PowerMock is an option, but slows down test execution and in my opinion allows bad-practice solutions
Instead create mocks for yourself, you can use Apache MyFaces Test, which provided already prepared Mock Objects for JSF artifacts. It will work better in a more wide range of cases, with less effort.
Just wondering it is possible to setup a mock inside a mock ? I mean a mock than get configured to return another mock which has a specific setup.
I am using Moq.
Thanks!
Looking at the moq site (and using what I know of RhinoMock) I suspect you could do something like:
var innerMock = new Mock<IInnerClass>();
// TODO - Setup innerMock expectations
var outerMock = new Mock<IOuterClass>();
outerMock.Setup(i => i.GetInner()).Returns(innerMock.Object);
I am trying to mock java.awt.Toolkit.beep() using JMockit Expectations. I have the following code in my test case:
new Expectations() {
Toolkit mock;
{
mock.beep();
}
}.endRecording();
When I run the test case (JUnit 4), I get the following exception at the "new Expectations" line:
java.lang.ClassFormatError: Code attribute in native or abstract methods in class file $Mock
Any ideas?
The default jmock can only mock interface. To mock class, you need to following these instructions