I'm trying to test a Laravel api.
When I try to create a partial mock with the Eloquent Model fill method, phpunit throws an error.
Code
$mock = m::mock('App\User', [])->makePartial();
$mock->shouldReceive('fill')->once()->andReturn('ok');
$result = $mock->fill([]);
var_dump($result);
Error
PHP Fatal error: Call to a member function __call() on a non-object
PHP Fatal error: Uncaught exception 'Illuminate\Contracts\Container\BindingResolutionException' with message 'Target [Illuminate\Contracts\Debug\ExceptionHandler] is not instantiable.
I really don't know if this either a Eloquent bug, or a Mockery error.
Notes:
I temporarily solved this problem using Model::update method instead of Model::fill and then Model::save, but I still want to know how to mock the fill method.
Links
http://laravel.com/api/5.0/Illuminate/Database/Eloquent/Model.html#method_fill
I think the mock object is created but without this method. You will need to define an expectation for the fill() method to dictate her mocked behaviour. like:
$mock->shouldReceive('fill')->once()->andReturn('ok');
hope it helps.
You can also use a passive partial mock as:
$mock = m::mock('Model')->makePartial();
$mock->shouldReceive("fill")->once()->andReturn("ok");
In passive partial, all methods will simply defer to the parent class original methods unless a method call matches a known expectation. And it will skip the call of the unexpected fill method in Model constructor.
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;
I have one parameterized method which accept string parameter and returns data upon passed param. I am using codeception framework for writing unit testing for php-zend project.
Method: getDataByView($view) $view can be default, all.
So I want mock this method such way it behave & return result based on passed params. I didnt get way in codeception framework so used phpunit code for that. But getting problems in that.
$map = array(
array('default', $default),
array('all', $all)
);
$mock = $this->getMockBuilder('ViewTable')
->setMethods(['getDataByView'])
->disableOriginalConstructor()
->getMock();
$mock->expects($this->any())
->method('getDataByView')
->will($this->returnValueMap($map));
Actually this code work as per my expectation. Since I am using setMethods() it calls the ViewTable class constructor. If I dont use setMethods then It doesn't call constructor.
Problems:
I want to mock only one method of class, so I have used
setMethods() but it calls mock class constructor. I dont want that.
How can it be solved in phpunit.
How to mock parameterized method in codeception framework.
I'm in the process of updating our test suite from OCMock 2 to OCMock 3 and am running into a few issues.
One of the issue is that we're trying to mock AVCaptureDeviceInput.
For one of the test we want to return a mocked instance AVCaptureDeviceInput when a class method is called on AVCaptureDeviceInput.
in our setup method:
self.mockAVCaptureDeviceInputClass = [OCMockObject mockForClass:[AVCaptureDeviceInput class]];
in our test:
id deviceInput = [OCMockObject mockForClass: [AVCaptureDeviceInput class]];
[[[[self.mockAVCaptureDeviceInputClass stub] classMethod] andReturn:deviceInput]
deviceInputWithDevice:mockDevice error:((NSError __autoreleasing **)[OCMArg setTo:nil])];
The issue seems to be that deviceInput overwrites the self.mockAVCaptureDeviceInputClass so that when the classMethod is stubbed, it does not do anything.
An alternative I tried to work around this was to create a mock for an instance of AVCaptureDeviceInput, but that just hangs:
[OCMockObject partialMockForObject: [AVCaptureDeviceInput new]];
with the following stack trace:
0x000000010938a219 in _object_set_associative_reference ()
0x0000000108aed5c3 in OCMSetAssociatedMockForClass at /Users/otusweb/Desktop/dfsa/Pods/OCMock/Source/OCMock/OCMFunctions.m:226
0x00000001144ecce2 in -[OCClassMockObject prepareClassForClassMethodMocking] at /Users/otusweb/Desktop/dfsa/Pods/OCMock/Source/OCMock/OCClassMockObject.m:89
0x00000001144ec934 in -[OCClassMockObject initWithClass:] at /Users/otusweb/Desktop/dfsa/Pods/OCMock/Source/OCMock/OCClassMockObject.m:31
0x00000001144f47f6 in -[OCPartialMockObject initWithObject:] at /Users/otusweb/Desktop/dfsa/Pods/OCMock/Source/OCMock/OCPartialMockObject.m:33
0x00000001144f1cdd in +[OCMockObject partialMockForObject:] at /Users/otusweb/Desktop/dfsa/Pods/OCMock/Source/OCMock/OCMockObject.m:58
0x00000001144e9abe in -[dfsaTests testExample] at /Users/otusweb/Desktop/dfsa/dfsaTests/dfsaTests.m:33
You are running into a common issue: only one mock object can mock class methods for a given class. This is is documented in the limitations section (http://ocmock.org/reference/#limitations). Currently the last mock created "wins".
What happens in your case is that you set up the first mock in your setup method (self.mockAVCaptureDeviceInputClass) but then you create a second mock for the same class in your test (deviceInput). At this point only the latter one can stub class methods on AVCaptureDeviceInput.
This problem is getting so common that I have decided to add a warning to OCMock. I'm thinking about the mock object printing a warning in cases where it has active stubs when it gets deactivated for class method stubbing. FWIW, there is some investigation under way to see whether it's possible to have more than one mock object mock class methods on the same class (https://github.com/erikdoe/ocmock/issues/173), but that's not trivial.
I want to test the in case of some fail no method will be called on a mock object , using google mock.
so the code be something like:
auto mocObj = new MockObj;
EXPECT_NO_METHOD_CALL(mocObj); //this is what I'm locking for
auto mainObj = new MainObj(mocObj , ......and other mocks); // here I simulate a fail using the other mock objects, and I want to be sure the no methods are called on the mockObj
There are no needs to explicitly tell that no methods will be called. If you set the logging level high enough, you should get a message if a method is called (if no expectation is set).
Other then that, you can set expectations like this :
EXPECT_CALL( mockObj, Foo(_) ).Times(0);
on all methods.
Create a StrictMock; any unexpected method call will be a failure.
Use Exactly(0) for all your class methods.
the cardinality will be set to zero so you are expecting no calls
You can also use StrictMock instead of NiceMock. This will fail on any "uninteresting" call, i.e., whenever a method of the mock is called, but no EXPECT_CALL was defined.
See Google Mock documentation here.
I have the following test to verify that my repository is calling it's respective session (I've rewritten it to highlight the actual problem):
[Test]
public void Why_Does_This_Fail()
{
var objectUnderTest = new SomeGenericsProblem();
var fakeSession = MockRepository.GenerateMock<ISession>();
fakeSession.Expect(s => s.Query<SomeClass>());
objectUnderTest.NotWorking<SomeClass>();
fakeSession.AssertWasCalled(t => t.Query<SomeClass>());
}
but when I run the test I get this:
System.InvalidOperationException :
Invalid call, the last call has been
used or no call has been made (make
sure that you are calling a virtual
(C#) / Overridable (VB) method).(C#) / Overridable (VB) method).
Any ideas what I'm doing wrong here? The session that I'm mocking is an interface, so it has to be virtual/overridable.
I have a feeling it has something to do with the fact that my Query method is a generic, but I don't know any other way to express what I'm trying to test.
Also, If I remove the part that sets up the expectation (i.e. this line of code:)
fakeSession.Expect(s => s.Query<SomeClass>());
I get a different exception which is equally confusing to me:
System.InvalidOperationException : No
expectations were setup to be
verified, ensure that the method call
in the action is a virtual (C#) /
overridable (VB.Net) method calloverridable (VB.Net) method call
So I figured out what was wrong.
ISession comes from NHibernate, which I probably should have mentioned.
The reason why this is cruicialy important is because
session.Query<T>
(which is what I'm trying to mock), is an EXTENSION METHOD.
Rhino Mocks apparently does not have the capability of mocking extension methods, hence why it's giving me the weird error.
So hopefully I'll have saves someone else the time and agony I've gone through in trying to figure out why my test won't pass.
The only solution that I've read about for this is to actually change the design of the extension method (which I can't do because it's part of NHibernate), or to use a different mocking framework like TypeMock.
[Test]
public void Query_WhenCalled_CallsSessionQuery()
{
// arrange
var session = MockRepository.GenerateStub<ISession>();
var r = new Repository(session);
// act
r.Query<SomeClass>();
// assert
session.AssertWasCalled(s => s.Query<SomeClass>());
}