### Question:
ExtensionPointHandler { public static void callExtensionPoint( final LogChannelInterface log, final String id, final Object object ) throws KettleException { ExtensionPointMap.getInstance().callExtensionPoint( log, id, object ); }  static void callExtensionPoint( final LogChannelInterface log, final String id, final Object object );  }### Answer:
@Test public void callExtensionPointTest() throws Exception { PluginMockInterface pluginInterface = mock( PluginMockInterface.class ); when( pluginInterface.getName() ).thenReturn( TEST_NAME ); when( pluginInterface.getMainType() ).thenReturn( (Class) ExtensionPointInterface.class ); when( pluginInterface.getIds() ).thenReturn( new String[] {"testID"} ); ExtensionPointInterface extensionPoint = mock( ExtensionPointInterface.class ); when( pluginInterface.loadClass( ExtensionPointInterface.class ) ).thenReturn( extensionPoint ); PluginRegistry.addPluginType( ExtensionPointPluginType.getInstance() ); PluginRegistry.getInstance().registerPlugin( ExtensionPointPluginType.class, pluginInterface ); final LogChannelInterface log = mock( LogChannelInterface.class ); ExtensionPointHandler.callExtensionPoint( log, "noPoint", null ); verify( extensionPoint, never() ).callExtensionPoint( any( LogChannelInterface.class ), any() ); ExtensionPointHandler.callExtensionPoint( log, TEST_NAME, null ); verify( extensionPoint, times( 1 ) ).callExtensionPoint( eq( log ), isNull() ); }