wrapper.state() and wrapper.instance().state() are both null react/jest/enzyme - reactjs

Question

As the subject line says, state is null and I cannot see why.
React 16
Jest
Enzyme
Webpack 4
Babel
(package.json below)
I've hit up pretty much every possible link searchable (although, admittedly I likely just missed 'the one' that tells me what I've done wrong).
If someone responds with a simple 'check here' link and it solves all my problems I'll close this (after I go chew some rocks for a while) and happily move on, but after a few hours of beating myself against the wall I'm close to going back to Jasmine... it at least worked there. :\
Output:
PASS __tests__\Components\ListBox.spec.js
● Console
console.log __tests__\Components\ListBox.spec.js:33
_____ wrapper: null
console.log __tests__\Components\ListBox.spec.js:34
____ instance: null
Test Suites: 1 passed, 1 total
Tests: 2 passed, 2 total
Snapshots: 0 total
Time: 0.985s, estimated 1s
Ran all test suites related to changed files.
Here is my package.json:
{
"name": "module",
"version": "1.0.1",
"author": "thanks all!",
"description": "",
"license": "MIT",
"main": "src/main.jsx",
"jest": {
"automock": true,
"testEnvironment": "jsdom",
"verbose": false,
"setupFiles": [
"raf/polyfill"
],
"moduleNameMapper": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/__mocks__/fileMock.js",
"\\.(css|less)$": "identity-obj-proxy"
},
"moduleFileExtensions": [
"js",
"jsx",
"es6"
],
"unmockedModulePathPatterns": [
"react",
"react-dom",
"react-addons-test-utils",
"enzyme"
],
"modulePaths": [
"<rootDir>/src",
"<rootDir>/src/app",
"<rootDir>/src/app/Components"
],
"transform": {
"\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga|js|jsx|es6)$": "./node_modules/babel-jest"
}
},
"jestWebpackResolver": {
"webpackConfig": "./webpack.config.js"
},
"scripts": {
"start": "webpack-dev-server --env=dev --colors --hot --mode development -d",
"build": "webpack --env=dev --progress --profile --colors --mode development",
"release": "webpack --env=prod --progress --profile --colors --mode production",
"watch": "webpack --env=dev --profile --colors --watch --watch-poll --mode development",
"lint": "eslint ./src/**.js",
"coverage": "jest --coverage",
"test": "jest",
"test-watch": "jest --coverage --watch --colors",
"testw": "jest --watch --colors"
},
"devDependencies": {
"babel-core": "^6.26.0",
"babel-eslint": "^8.2.2",
"babel-jest": "^22.4.1",
"babel-loader": "^7.1.4",
"babel-preset-env": "^1.6.1",
"babel-preset-stage-3": "^6.24.1",
"core-js": "^2.5.5",
"css-loader": "^0.28.10",
"enzyme": "^3.3.0",
"eslint": "^4.18.2",
"eslint-config-airbnb": "^16.1.0",
"eslint-import-resolver-webpack": "^0.9.0",
"eslint-loader": "^2.0.0",
"eslint-plugin-import": "^2.9.0",
"eslint-plugin-jsx-a11y": "^6.0.3",
"eslint-plugin-react": "^7.7.0",
"identity-obj-proxy": "^3.0.0",
"jest": "^22.4.2",
"jest-enzyme": "^6.0.0",
"jest-webpack-resolver": "^0.3.0",
"node-sass": "^4.5.3",
"object-assign": "^4.1.1",
"raf": "^3.4.0",
"react-hot-loader": "^4.0.0",
"react-test-renderer": "^16.3.2",
"sass-loader": "^6.0.6",
"style-loader": "^0.20.3",
"webpack-dev-server": "^3.1.1",
"webpack-merge": "^4.1.2"
},
"dependencies": {
"babel-preset-react": "^6.24.1",
"clean-webpack-plugin": "^0.1.19",
"enzyme-adapter-react-16": "^1.1.1",
"extract-text-webpack-plugin": "^4.0.0-beta.0",
"flux": "^3.1.3",
"font-awesome": "^4.7.0",
"html-webpack-plugin": "^3.0.6",
"jest-environment-enzyme": "^6.0.0",
"lodash": "^4.17.5",
"moment": "^2.22.0",
"node-rest-client": "^3.1.0",
"npm": "^5.7.1",
"prop-types": "^15.6.1",
"react": "^16.2.0",
"react-dom": "^16.2.0",
"react-router": "^4.2.0",
"react-router-dom": "^4.2.2",
"webpack": "^4.2.0",
"webpack-bundle-analyzer": "^2.11.1",
"webpack-cli": "^2.0.13",
"webpack-dev-middleware": "^3.0.1"
}
}
Here is my spec file:
/*
eslint-disable
react/jsx-filename-extension,
import/first,
no-console
*/
jest.dontMock('enzyme');
jest.dontMock('react');
jest.dontMock('react-dom');
import React from 'react';
import Adapter from 'enzyme-adapter-react-16';
import { configure, shallow, mount } from 'enzyme';
import { ListBox } from 'app/Components/ListBox/ListBox';
configure({ adapter: new Adapter() });
jest.dontMock('app/Components/ListBox/ListBox');
describe('<ListBox {...props} />', () => {
let wrapper;
let list;
const items = [{ text: 'test', key: 1 }];
describe('<ListBox {...props} />', () => {
beforeEach(() => {
wrapper = mount(<ListBox items={items} />);
list = wrapper.instance();
});
it('Can mount without error', () => {
expect(list).toBeInstanceOf(ListBox);
});
it('accepts an array of items to display and stores them in local state.', () => {
console.log(`_____ wrapper: ${wrapper.state()}`);
console.log(`____ instance: ${wrapper.instance().state}`);
});
});
});
Here is the beginning of the component under test:
import React from 'react';
export default class ListBox extends React.Component {
constructor(props) {
super(props);
this.state = {
items: this.props.items
}
}
render() {
return <div>div</div>;
}
}
export { ListBox };

Answer 1

Solved my own problem. Setting automock to false in the package.json and then explicitly mocking/unmocking as needed resolved the issue for me.
Hopefully this helps others in the future.