refactor: extract method filterNodeByType

Author: MattAgn

src/helpers/filterNodeByType.js

@@ -0,0 +1 @@
+export const filterNodeByType = (node, type) => node.type === type;

src/helpers/getByAPI.js

@@ -1,6 +1,7 @@
 // @flow
 import * as React from 'react';
 import prettyFormat from 'pretty-format';
+import { filterNodeByType } from './filterNodeByType';
 import {
   ErrorWithStack,
   createLibraryNotSupportedError,
@@ -41,8 +42,6 @@ export type GetByAPI = {|
   getAllByPlaceholder: () => void,
 |};
 
-const filterNodeByType = (node, type) => node.type === type;
-
 const getNodeByText = (node, text) => {
   try {
     const { Text } = require('react-native');