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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/use-includes-instead-of-indexOf");
var RuleTester = require("eslint").RuleTester;
const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: "latest" } });
// ------------------------------------------------------------------------------
// Tests
// ------------------------------------------------------------------------------
function invalidCode(code) {
let message = "use .includes instead of .indexOf";
return { code, errors: [{ message, type: "BinaryExpression" }] };
}
ruleTester.run("use-includes-instead-of-indexOf", rule, {
valid: [
"let a = foo.includes(bar);",
"let a = foo.indexOf(bar) > 0;",
"let a = foo.indexOf(bar) != 0;",
],
invalid: [
invalidCode("let a = foo.indexOf(bar) >= 0;"),
invalidCode("let a = foo.indexOf(bar) != -1;"),
invalidCode("let a = foo.indexOf(bar) !== -1;"),
invalidCode("let a = foo.indexOf(bar) == -1;"),
invalidCode("let a = foo.indexOf(bar) === -1;"),
invalidCode("let a = foo.indexOf(bar) < 0;"),
],
});
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