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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// ------------------------------------------------------------------------------
// Requirements
// ------------------------------------------------------------------------------
var rule = require("../lib/rules/no-compare-against-boolean-literals");
var RuleTester = require("eslint").RuleTester;
const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 6 } });
// ------------------------------------------------------------------------------
// Tests
// ------------------------------------------------------------------------------
function callError(message) {
return [{ message, type: "BinaryExpression" }];
}
const MESSAGE = "Don't compare for inexact equality against boolean literals";
ruleTester.run("no-compare-against-boolean-literals", rule, {
valid: [`if (!foo) {}`, `if (!!foo) {}`],
invalid: [
{
code: `if (foo == true) {}`,
errors: callError(MESSAGE),
},
{
code: `if (foo != true) {}`,
errors: callError(MESSAGE),
},
{
code: `if (foo == false) {}`,
errors: callError(MESSAGE),
},
{
code: `if (foo != false) {}`,
errors: callError(MESSAGE),
},
{
code: `if (true == foo) {}`,
errors: callError(MESSAGE),
},
{
code: `if (true != foo) {}`,
errors: callError(MESSAGE),
},
{
code: `if (false == foo) {}`,
errors: callError(MESSAGE),
},
{
code: `if (false != foo) {}`,
errors: callError(MESSAGE),
},
],
});
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