@ankushd75501011 We need to mock the ModelFactory and provide dummy implementation for the method - exportModelForResource() using Mockito's when and thenReturn in your test class and then assert accordingly.Please find below sample snippet(BylineImplTest) from official docs (where the dummy impleme...

@chintan1997 Can you let know if you have written Custom Sling Model for any of this three - Title, Image and Text component. Also, can you try to remove the text component from child containers and author Title or Image (working ones in the parent container) just to narrow down the issue.  

@chintan1997 Can you let know the components that are added within the child container.Is it proxy of core components or completely custom components.If it is the latter, Does that component has Sling Model with exporter?

@chintan1997 Could you please let know the Core components version you are using in your project in addition to above 

@chintan1997 Are you providing custom implementation for getExportedItems() method ?Is it possible for you to share the complete Java class file for further debugging

Hi @chintan1997 We can make use of lombok's Delegate to delegate all public methods of desired Type (in this case LayoutContainer) along with its Super Types Here is the hierarchy of interface which LayoutContainer extends LayoutContainer -> Container -> Component(in turn extends ComponentExporter) ...

If your project specific breadcrumb is inheriting from this CIF breadcrumb component - core/cif/components/structure/breadcrumb/v1/breadcrumb (which in turns inherit from Core WCM breadcrumb), then the Model that we should be providing custom implementation for is com.adobe.cq.wcm.core.components.mo...

@hanish_imandi2 Could you please let know the issue - is the customBreadcrumb reference is null or you have issue in extending the methods