Unit test case for Sling delegation pattern

[JeevanRaj]

Hi,

I would like to write test cases for sling delegation pattern. I did find a few articles which pointed me in the right direction but I'm still unable to get the core components properties. Could anyone help in writing a minimal test case for a sling delegation model? Below is my code.

https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/junit-test-cases-for-sling...

https://adapt.to/2021/schedule/whats-new-in-aem-mocks

https://github.com/adobe/aem-core-wcm-components/issues/1777

https://github.com/adobe/aem-core-wcm-components/blob/main/testing/aem-mock-plugin/src/test/java/com...

@ExtendWith(AemContextExtension.class)
public class CustomTextFormTest{

    private final AemContext context = new AemContextBuilder(ResourceResolverType.JCR_MOCK)
            .plugin(CORE_COMPONENTS)
            .build();

    private CustomTextForm customTextForm;

    @BeforeEach
    void setUp() {
        context.create().resource("/apps/myproject/components/content/coreform/text",
                "sling:resourceSuperType", "core/wcm/components/form/text/v2/text");

        Page page = context.create().page("/content/test-page");

        context.currentResource(context.create().resource(page, "extendedText",
                "sling:resourceType", "myproject/components/content/coreform/text",
                "required", "true",
                "requiredMessage","Required message when required checkbox is true"
        ));

        customTextForm= context.request().adaptTo(FormTextModel.class);
    }

    @Test
    void testGetRequiredMessageWhenMsgIsAuthoredAndRequiredCheckBoxIsTrue() {
        String expected = "Required message when required checkbox is true";
        String actual = customTextForm.getRequiredMessage();
        assertEquals(expected, actual);
    }
}

[arunpatidar]

Please check if this helps?

https://github.com/arunpatidar02/aem63app-repo/blob/master/java/CustomTeaser.java

https://github.com/arunpatidar02/aem63app-repo/blob/master/java/CustomTeaserTest.java 

[JeevanRaj]

Hi @arunpatidar 

Thanks for your reply. I had read through this earlier. However, I was looking for the approach that is provided in wcm.io library. It is addressed here (detailed video here). I'm trying to write a minimal test case for an extended core component using this approach but unable to get it to work so far.

[arunpatidar · Accepted solution]

HI @JeevanRaj 
I have not tried this core component plugin, so not sure if this will work or not.

What issue are you geeting?

[JeevanRaj]

Below is the sling model. "text" object is null here when running the test case.

Sling Model:

@Model(adaptables = SlingHttpServletRequest.class, adapters = {Text.class, FormTextModel.class},
        resourceType = "myproject/components/content/coreform/text",
        defaultInjectionStrategy = DefaultInjectionStrategy.OPTIONAL)
public class FormTextModel implements Text {

    @Self
    @Via(type = ResourceSuperType.class)
    @Delegate(excludes = DelegationExclusion.class)
    private Text text;

    @Override
    public String getRequiredMessage() {
        return text.isRequired() && StringUtils.isBlank(text.getRequiredMessage()) ? MyProjectConstants.REQUIRED_MESSAGE : text.getRequiredMessage();
    }

    private interface DelegationExclusion { // Here we define the methods we want to override
        String getRequiredMessage();
    }
}  

Test class:

@ExtendWith(AemContextExtension.class)
public class FormTextModelTest {
    private final AemContext context = new AemContextBuilder(ResourceResolverType.JCR_MOCK)
            .plugin(CORE_COMPONENTS)
            .build();

    private FormTextModel formTextModel;

    @BeforeEach
    void setUp() {

        context.create().resource("/apps/myproject/components/content/coreform/text",
                "sling:resourceSuperType", "core/wcm/components/form/text/v2/text");

        Page page = context.create().page("/content/test-page");
        Resource resource = context.create().resource(page, "extendedText",
                PROPERTY_RESOURCE_TYPE, "mrproject/components/content/coreform/text",
                "sling:resourceSuperType", "core/wcm/components/form/text/v2/text",
                "required", "true",
                "requiredMessage","Required message when required checkbox is true"
        );

        context.currentResource(resource);
        formTextModel = context.request().adaptTo(FormTextModel.class);
    }

    @Test
    void testGetRequiredMessageWhenMsgIsAuthoredAndRequiredCheckBoxIsTrue() {
        assertNotNull(formTextModel, "Unable instantiate title component");
        String expected = "Required message when required checkbox is true";
        String actual = formTextModel.getRequiredMessage();
        assertEquals(expected, actual);
    }
} 

[arunpatidar]

could you please check https://levelup.gitconnected.com/aem-extend-core-component-models-using-resource-type-association-an...