DiagramDocumentEditor editor_page = openDiagram(page);
try {
ShapeNodeEditPart form = assertHasInputForm(editor_page, "target form", false);
// lets run the action
runAction(new RefreshFormMappingsWithDrools(), form);
// the current editor should still be the same
// should have three children
assertEditorHasChildren(3, editor_page);
assertHasInputForm(editor_page, "target form", false);