How to use enzyme-adapter-utils - 10 common examples

simulateEvent(node, event, ...args) {
        const handler = node.props[propFromEvent(event)];
        if (handler) {
          withSetStateAllowed(() => {
            // TODO(lmr): create/use synthetic events
            // TODO(lmr): emulate React's event propagation
            // ReactDOM.unstable_batchedUpdates(() => {
            handler(...args);
            // });
          });
        }
      },
      batchedUpdates(fn) {

simulateEvent(node, event, mock) {
        const mappedEvent = mapNativeEventNames(event);
        const eventFn = TestUtils.Simulate[mappedEvent];
        if (!eventFn) {
          throw new TypeError(
            `ReactWrapper::simulate() event '${event}' does not exist`
          );
        }
        // eslint-disable-next-line react/no-find-dom-node
        eventFn(nodeToHostNode(node), mock);
      },
      batchedUpdates(fn) {

simulateEvent(node, event, mock) {
        const mappedEvent = mapNativeEventNames(event);
        const eventFn = TestUtils.Simulate[mappedEvent];
        if (!eventFn) {
          throw new TypeError(
            `ReactWrapper::simulate() event '${event}' does not exist`,
          );
        }
        // eslint-disable-next-line react/no-find-dom-node
        eventFn(nodeToHostNode(node), mock);
      },
      batchedUpdates(fn) {

simulateEvent(node, event, mock) {
        const mappedEvent = mapNativeEventNames(event)
        const eventFn = TestUtils.Simulate[mappedEvent]
        if (!eventFn) {
          throw new TypeError(
            `ReactWrapper::simulate() event '${event}' does not exist`
          )
        }
        // eslint-disable-next-line react/no-find-dom-node
        eventFn(nodeToHostNode(node), mock)
      },
      batchedUpdates(fn) {

case ClassComponent:
      return {
        nodeType: 'class',
        type: node.type,
        props: {...node.memoizedProps},
        key: ensureKeyOrUndefined(node.key),
        ref: node.ref,
        instance: node.stateNode,
        rendered: childrenToTree(node.child)
      };
    case FunctionalComponent: // 1
      return {
        nodeType: 'function',
        type: node.type,
        props: {...node.memoizedProps},
        key: ensureKeyOrUndefined(node.key),
        ref: node.ref,
        instance: null,
        rendered: childrenToTree(node.child)
      };
    case HostComponent: {
      // 5
      let renderedNodes = flatten(nodeAndSiblingsArray(node.child).map(toTree));
      if (renderedNodes.length === 0) {
        renderedNodes = [node.memoizedProps.children];
      }
      return {
        nodeType: 'host',
        type: node.type,
        props: {...node.memoizedProps},
        key: ensureKeyOrUndefined(node.key),
        ref: node.ref,

// somewhere else. Should talk to sebastian about this perhaps
  const node = findCurrentFiberUsingSlowPath(vnode);
  switch (node.tag) {
    case HostRoot: // 3
      return childrenToTree(node.child);
    case HostPortal: { // 4
      const {
        stateNode: { containerInfo },
        memoizedProps: children,
      } = node;
      const props = { containerInfo, children };
      return {
        nodeType: 'portal',
        type: Portal,
        props,
        key: ensureKeyOrUndefined(node.key),
        ref: node.ref,
        instance: null,
        rendered: childrenToTree(node.child),
      };
    }
    case ClassComponent:
      return {
        nodeType: 'class',
        type: node.type,
        props: { ...node.memoizedProps },
        key: ensureKeyOrUndefined(node.key),
        ref: node.ref,
        instance: node.stateNode,
        rendered: childrenToTree(node.child),
      };
    case FunctionalComponent: // 1

props: { ...node.memoizedProps },
        key: ensureKeyOrUndefined(node.key),
        ref: node.ref,
        instance: null,
        rendered: childrenToTree(node.child),
      };
    case HostComponent: { // 5
      let renderedNodes = flatten(nodeAndSiblingsArray(node.child).map(toTree));
      if (renderedNodes.length === 0) {
        renderedNodes = [node.memoizedProps.children];
      }
      return {
        nodeType: 'host',
        type: node.type,
        props: { ...node.memoizedProps },
        key: ensureKeyOrUndefined(node.key),
        ref: node.ref,
        instance: node.stateNode,
        rendered: renderedNodes,
      };
    }
    case HostText: // 6
      return node.memoizedProps;
    case FragmentType: // 10
    case Mode: // 11
      return childrenToTree(node.child);
    default:
      throw new Error(`Enzyme Internal Error: unknown node with tag ${node.tag}`);
  }
}

simulateEvent(node, event, ...args) {
        const handler = node.props[propFromEvent(event, eventOptions)];
        if (handler) {
          withSetStateAllowed(() => {
            // TODO(lmr): create/use synthetic events
            // TODO(lmr): emulate React's event propagation
            // ReactDOM.unstable_batchedUpdates(() => {
            handler(...args);
            // });
          });
        }
      },
      batchedUpdates(fn) {

simulateEvent(node, event, ...args) {
        const handler = node.props[propFromEvent(event, eventOptions)];
        if (handler) {
          withSetStateAllowed(() => {
            // TODO(lmr): create/use synthetic events
            // TODO(lmr): emulate React's event propagation
            ReactDOM.unstable_batchedUpdates(() => {
              handler(...args);
            });
          });
        }
      },
      batchedUpdates(fn) {

simulateEvent(node, event, ...args) {
        const handler = node.props[propFromEvent(event)];
        if (handler) {
          let returned;
          withSetStateAllowed(() => {
            // TODO(lmr): create/use synthetic events
            // TODO(lmr): emulate React's event propagation
            // ReactDOM.unstable_batchedUpdates(() => {
            returned = handler(...args);
            // });
          });
          return returned;
        }
      },
      batchedUpdates(fn) {