Source code
Revision control
Copy as Markdown
Other Tools
/* Any copyright is dedicated to the Public Domain.
// ------------------------------------------------------------------------------
// Requirements
// ------------------------------------------------------------------------------
import rule from "../lib/rules/no-compare-against-boolean-literals.mjs";
import { RuleTester } from "eslint";
const ruleTester = new RuleTester();
// ------------------------------------------------------------------------------
// Tests
// ------------------------------------------------------------------------------
function callError() {
return [{ messageId: "noCompareBoolean", type: "BinaryExpression" }];
}
ruleTester.run("no-compare-against-boolean-literals", rule, {
valid: [`if (!foo) {}`, `if (!!foo) {}`],
invalid: [
{
code: `if (foo == true) {}`,
errors: callError(),
},
{
code: `if (foo != true) {}`,
errors: callError(),
},
{
code: `if (foo == false) {}`,
errors: callError(),
},
{
code: `if (foo != false) {}`,
errors: callError(),
},
{
code: `if (true == foo) {}`,
errors: callError(),
},
{
code: `if (true != foo) {}`,
errors: callError(),
},
{
code: `if (false == foo) {}`,
errors: callError(),
},
{
code: `if (false != foo) {}`,
errors: callError(),
},
],
});