Looks same can be achieved by writing custom embeddable https://github.com/adobe/aem-core-wcm-components/blob/main/content/src/content/jcr_root/apps/core/wcm/components/embed/v1/embed/README.md#custom-embeddable-fragment 

Has anyone used Embed Core component and customize it to support different url that are not in the ombed.json list https://oembed.com/providers.json

hi @arunpatidar @nitesh_kumar - can you help in checking

hi @arunpatidar - were you able to properties of Teaser in junit test class,

hi @N_haq - was your issue resolved, i am also getting similar issue

hi @arunpatidar - Have tried above, bit it gives  01:27:12.041 [main] DEBUG org.apache.sling.testing.mock.sling.MockAdapterManagerImpl - Using adapter factory org.apache.sling.models.impl.ModelAdapterFactory@4232b34a to map org.apache.sling.testing.mock.sling.servlet.MockSlingHttpServletRequest@2da1...

hi @nitesh_kumar @arunpatidar - Please check once

hi @nitesh_kumar - Tried but getting null pointer for imagelist core as well, can you check or have any working sample to be shared.  

hi @nitesh_kumar - Let us try once and get back

Hi Team,   We are trying to create junit for sling models where delegate pattern was used, but the core class reference always returns null.Is there any better way to create junit for such use case. Detailed error : java.lang.NullPointerException: Cannot invoke "com.adobe.cq.wcm.core.components.mod...