org.junit.jupiter.engine.extension

Interface ExtensionRegistrar

All Known Implementing Classes:

MutableExtensionRegistry

@API(status=INTERNAL,
     since="5.5")
public interface ExtensionRegistrar

An ExtensionRegistrar is used to register extension.

Since:

5.5

Method Summary

Modifier and Type	Method and Description
void	registerExtension(Extension extension, java.lang.Object source) Register the supplied Extension, without checking if an extension of that type already exists.

Method Detail

registerExtension

void registerExtension(Extension extension,
                       java.lang.Object source)

Register the supplied Extension, without checking if an extension of that type already exists.

Semantics for Source

If an extension is registered declaratively via @ExtendWith, the source and the extension should be the same object. However, if an extension is registered programmatically via @RegisterExtension, the source object should be the Field that is annotated with @RegisterExtension. Similarly, if an extension is registered programmatically as a lambda expression or method reference, the source object should be the underlying Method that implements the extension API.

Parameters:

extension - the extension to register; never null

source - the source of the extension; never null