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jsx-uses-react.js
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jsx-uses-react.js
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/**
* @fileoverview Tests for jsx-uses-react
* @author Glen Mailer
*/
'use strict';
// -----------------------------------------------------------------------------
// Requirements
// -----------------------------------------------------------------------------
const eslint = require('eslint');
const rule = require('../../helpers/getESLintCoreRule')('no-unused-vars');
const RuleTester = eslint.RuleTester;
const parsers = require('../../helpers/parsers');
const parserOptions = {
ecmaVersion: 2018,
sourceType: 'module',
ecmaFeatures: {
jsx: true
}
};
const settings = {
react: {
pragma: 'Foo'
}
};
// -----------------------------------------------------------------------------
// Tests
// -----------------------------------------------------------------------------
const ruleTester = new RuleTester({parserOptions});
const linter = ruleTester.linter || eslint.linter || eslint.Linter;
linter.defineRule('jsx-uses-react', require('../../../lib/rules/jsx-uses-react'));
ruleTester.run('no-unused-vars', rule, {
valid: [].concat(
{code: '/*eslint jsx-uses-react:1*/ var React; <div />;'},
{code: '/*eslint jsx-uses-react:1*/ var React; (function () { <div /> })();'},
{code: '/*eslint jsx-uses-react:1*/ /** @jsx Foo */ var Foo; <div />;'},
{code: '/*eslint jsx-uses-react:1*/ var Foo; <div />;', settings},
parsers.TS([
{code: '/*eslint jsx-uses-react:1*/ var Frag; <></>;', settings: {react: {fragment: 'Frag'}}},
{code: '/*eslint jsx-uses-react:1*/ var React; <></>;', parser: parsers.BABEL_ESLINT}
])
),
invalid: [].concat({
code: '/*eslint jsx-uses-react:1*/ var React;',
errors: [{message: '\'React\' is defined but never used.'}]
}, {
code: '/*eslint jsx-uses-react:1*/ /** @jsx Foo */ var React; <div />;',
errors: [{message: '\'React\' is defined but never used.'}]
}, {
code: '/*eslint jsx-uses-react:1*/ var React; <div />;',
errors: [{message: '\'React\' is defined but never used.'}],
settings
}, parsers.TS([{
code: '/*eslint jsx-uses-react:1*/ var Frag; <></>;',
errors: [{message: '\'Frag\' is defined but never used.'}],
parser: parsers.TYPESCRIPT_ESLINT,
settings: {react: {fragment: 'Fragment'}}
}, {
code: '/*eslint jsx-uses-react:1*/ var Frag; <></>;',
errors: [{message: '\'Frag\' is defined but never used.'}],
parser: parsers['@TYPESCRIPT_ESLINT'],
settings: {react: {fragment: 'Fragment'}}
}, {
code: '/*eslint jsx-uses-react:1*/ var React; <></>;',
parser: parsers.BABEL_ESLINT,
errors: [{message: '\'React\' is defined but never used.'}],
settings
}, {
code: '/*eslint jsx-uses-react:1*/ var React; <></>;',
parser: parsers.TYPESCRIPT_ESLINT,
errors: [{message: '\'React\' is defined but never used.'}],
settings
}, {
code: '/*eslint jsx-uses-react:1*/ var React; <></>;',
parser: parsers['@TYPESCRIPT_ESLINT'],
errors: [{message: '\'React\' is defined but never used.'}],
settings
}]))
});