columnHeaderDataLayer
.registerCommandHandler(columnHeaderCommandHandler);
rowHeaderDataLayer.registerCommandHandler(rowHeaderCommandHandler);
cornerDataLayer.registerCommandHandler(cornerCommandHandler);
final ILayerCommand command = new LayerCommandFixture();
gridLayerUnderTest.doCommand(command);
Assert.assertFalse(bodyCommandHandler.isCommandCaught());
Assert.assertFalse(columnHeaderCommandHandler.isCommandCaught());