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39 lines
911 B
39 lines
911 B
8 years ago
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'use strict';
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require('../common');
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const RuleTester = require('../../tools/eslint').RuleTester;
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const rule = require('../../tools/eslint-rules/no-let-in-for-declaration');
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const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 6 } });
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const message = 'Use of `let` as the loop variable in a for-loop is ' +
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'not recommended. Please use `var` instead.';
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ruleTester.run('no-let-in-for-declaration', rule, {
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valid: [
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'let foo;',
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'for (var foo = 1;;);',
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'for (foo = 1;;);',
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'for (;;);',
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'for (const foo of bar);',
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'for (var foo of bar);',
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'for (const foo in bar);',
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'for (var foo in bar);'
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],
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invalid: [
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{
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code: 'for (let foo = 1;;);',
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errors: [{ message }]
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},
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{
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code: 'for (let foo in bar);',
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errors: [{ message }]
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},
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{
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code: 'for (let foo of bar);',
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errors: [{ message }]
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}
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]
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});
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