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dylanmccurry
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February 6, 2023
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Unit testing QueryBuilder and Query

  • February 6, 2023
  • 1 reply
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What is the proper way to unit test QueryBuilder and Query?  Can I feed in mock data to the AemContext and have QueryBuilder execute against it?

 

Are there any examples or best practices that can be followed?

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Best answer by Saravanan_Dharmaraj

Do you have the unit test class with these annotations? 

 

@ExtendWith({ AemContextExtension.class, MockitoExtension.class })
@MockitoSettings(strictness = Strictness.LENIENT)
class UnitTest {
}

The same code works for me. 

1 reply

Saravanan_Dharmaraj
Saravanan_Dharmaraj
New Participant
February 6, 2023

Some sample code to start with

 

 

public static final String BASE_PAGE_PATH = "/content/we.retail/en"; AemContext aemContext = new AemContext(ResourceResolverType.JCR_MOCK); @Mock private QueryBuilder queryBuilder; @Mock private Query query; @Mock private SearchResult searchResult; @BeforeEach void setUp() throws Exception{ aemContext.registerService(QueryBuilder.class, queryBuilder); aemContext.load().json("/page.json", BASE_PAGE_PATH); configureQueryBuilder(); } public void configureQueryBuilder() throws Exception { final List<Resource> results = new ArrayList<>(); Resource pageResult1 = mock(Resource.class); Resource pageResult2 = mock(Resource.class); pageResult1 = aemContext.resourceResolver().getResource(BASE_PAGE_PATH+"/page1"); pageResult2 = aemContext.resourceResolver().getResource(BASE_PAGE_PATH+"/page1"); results.add(pageResult1); results.add(pageResult2); // More Generic mock of querybuilder calls lenient().when(queryBuilder.createQuery(any(PredicateGroup.class), any(Session.class))).thenReturn(query); lenient().when(query.getResult()).thenReturn(searchResult); lenient().when(searchResult.getResources()).thenReturn(results.iterator()); }

 

  

    D
    dylanmccurryAuthor
    New Participant
    February 7, 2023

    So I've tried this, but this line of code returns null within my service:

     

    Query query = queryBuilder.createQuery(PredicateGroup.create(paramMap), resolver.adaptTo(Session.class));

     

    After this runs under the unit test, query is null- so future calls like query.setStart() throw a null reference exception.
     
    In my configureQueryBuilder, I have it looking like this:
     
    public void configureQueryBuilder() throws Exception { final List<Resource> results = new ArrayList<>(); Resource pageResult1 = mock(Resource.class); Resource pageResult2 = mock(Resource.class); pageResult1 = aemContext.resourceResolver().getResource(BASE_PAGE_PATH+"/page-1"); pageResult2 = aemContext.resourceResolver().getResource(BASE_PAGE_PATH+"/page-2"); results.add(pageResult1); results.add(pageResult2); doNothing().when(query).setStart(isA(long.class)); lenient().when(query.getResult()).thenReturn(searchResult); // More Generic mock of querybuilder calls lenient().when(queryBuilder.createQuery(any(PredicateGroup.class), any(Session.class))).thenReturn(query); lenient().when(searchResult.getResources()).thenReturn(results.iterator()); }
     
    how do I get the Mock query object to return?  Maybe the mock is returning, but the Mock is null?
      Saravanan_Dharmaraj
      Saravanan_DharmarajAccepted solution
      New Participant
      February 7, 2023

      Do you have the unit test class with these annotations? 

       

      @ExtendWith({ AemContextExtension.class, MockitoExtension.class })
      @MockitoSettings(strictness = Strictness.LENIENT)
      class UnitTest {
      }

      The same code works for me. 

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