Hi, I have been trying to write a unit test in C# for a Manager
method. I am mocking two DAOS. However, the parameter passed to the
manager method will be further populated by the manager and passed as
an argument to one DAO. I wish to place a constraint on the DAO call
to ensure this property was populated correctly. Maybe this is easier
to demonstrate through code....
// the manager to test
SearchManager managerToTest = new SearchManager();
// mock the two DAOs
MockRepository mocks = new MockRepository();
ISearchDAO mockedSearchDAO = mocks.StrictMock<ISearchDAO>
();
IServiceAreaDAO mockedServiceAreaDAO =
mocks.StrictMock<IServiceAreaDAO>();
// create a search criteria object that does not have it's
ServiceAreas collection populated
ArticleSearchCriteria criteria = new ArticleSearchCriteria
();
// now the manager method will populate the ServiceAreas
property of criteria with a collection of
// matching ServiceArea objects matching the below int
array
int[] serviceAreaIds = { 345435 };
ServiceArea serviceArea = new ServiceArea();
// and these will be the pretend results
ArticleSearchResult resultFromDAO = new ArticleSearchResult
();
using (mocks.Record())
{
Expect.Call(mockedServiceAreaDAO.GetById
(345435)).Return(serviceArea);
// Now, here, I want a contraint to say
// ensure criteria.ServiceAreas contains the above
serviceArea object. This will be
// set before calling the below DAO method.
Expect.Call(mockedSearchDAO.SearchForArticles
(criteria)).Return(resultFromDAO);
}
using (mocks.Playback())
{
// inject DAO dependencies
managerToTest.SearchDAO = mockedSearchDAO;
managerToTest.ServiceAreaDAO = mockedServiceAreaDAO;
// call the method ensuring correct results. This
works fine
Assert.That(managerToTest.SearchForArticles(criteria,
serviceAreaIds), Is.SameAs(resultFromDAO));
// Now, I shouldn't be validating the ServiceAreas
collection was populated through the assert methodology
Assert.That(criteria.ServiceAreas, Has.Member
(serviceArea));
}
I have been tearing my receding hair out all afternoon through the
Rhino Mocks documentation to understand how to test this scenario.
Cheers!!!
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