eslint-config-dora/test/test-react-order.js

Eslint config of Dora's Dream, base on eslint-config-airbnb.

import test from 'tape';
import {CLIEngine} from 'eslint';
import eslintrc from '../';
import reactRules from '../rules/react';
import reactA11yRules from '../rules/react-a11y';

const cli = new CLIEngine({
    useEslintrc: false,
    baseConfig: eslintrc,

    rules: {
        // It is okay to import devDependencies in tests.
        'import/no-extraneous-dependencies': [2, {devDependencies: true}],
    },
});

function lint (text) {
    // @see http://eslint.org/docs/developer-guide/nodejs-api.html#executeonfiles
    // @see http://eslint.org/docs/developer-guide/nodejs-api.html#executeontext
    const linter = cli.executeOnText(text);
    return linter.results[0];
}

function wrapComponent (body) {
    return `
import React from 'react';

export default class MyComponent extends React.Component {
/* eslint no-empty-function: 0, class-methods-use-this: 0 */
${body}
}
`;
}

test('validate react prop order', (t) => {
    t.test('make sure our eslintrc has React and JSX linting dependencies', (t) => {
        t.plan(2);
        t.deepEqual(reactRules.plugins, ['react']);
        t.deepEqual(reactA11yRules.plugins, ['jsx-a11y', 'react']);
    });

    t.test('passes a good component', (t) => {
        t.plan(3);
        const result = lint(wrapComponent(`
    componentWillMount () {}
    componentDidMount () {}
    setFoo () {}
    getFoo () {}
    setBar () {}
    someMethod () {}
    renderDogs () {}
    render () { return <div />; }
`));

        t.notOk(result.warningCount, 'no warnings');
        t.notOk(result.errorCount, 'no errors');
        t.deepEquals(result.messages, [], 'no messages in results');
    });

    t.test('order: when random method is first', (t) => {
        t.plan(2);
        const result = lint(wrapComponent(`
    someMethod () {}
    componentWillMount () {}
    componentDidMount () {}
    setFoo () {}
    getFoo () {}
    setBar () {}
    renderDogs () {}
    render () { return <div />; }
`));

        t.ok(result.errorCount, 'fails');
        t.equal(result.messages[0].ruleId, 'react/sort-comp', 'fails due to sort');
    });

    t.test('order: when random method after lifecycle methods', (t) => {
        t.plan(2);
        const result = lint(wrapComponent(`
    componentWillMount () {}
    componentDidMount () {}
    someMethod () {}
    setFoo () {}
    getFoo () {}
    setBar () {}
    renderDogs () {}
    render () { return <div />; }
`));

        t.ok(result.errorCount, 'fails');
        t.equal(result.messages[0].ruleId, 'react/sort-comp', 'fails due to sort');
    });
});