'use strict';
const rule = require('../no-primitive-constructors');
const {RuleTester} = require('eslint');
const ruleTester = new RuleTester();
ruleTester.run('eslint-rules/no-primitive-constructors', rule, {
valid: ['!!obj', '+string'],
invalid: [
{
code: 'Boolean(obj)',
errors: [
{
message:
'Do not use the Boolean constructor. To cast a value to a boolean, use double negation: !!value',
},
],
},
{
code: 'new String(obj)',
errors: [
{
message:
"Do not use `new String()`. Use String() without new (or '' + value for perf-sensitive code).",
},
],
},
{
code: 'Number(string)',
errors: [
{
message:
'Do not use the Number constructor. To cast a value to a number, use the plus operator: +value',
},
],
},
],
});