API mount shallowMount render renderToString Mounting Options context slots scopedSlots stubs mocks localVue attachToDocument attrs listeners provide sync other options Wrapper attributes classes contains emitted emittedByOrder exists destroy find findAll html is isEmpty isVueInstance name props setData setMethods setProps text trigger isVisible WrapperArray at contains exists destroy filter is isEmpty isVueInstance setData setMethods setProps trigger isVisible components TransitionStub TransitionGroupStub RouterLinkStub Selectors createLocalVue config