pve-eslint/eslint/tests/lib/rules/no-global-assign.js

/**
 * @fileoverview Tests for no-global-assign rule.
 * @author Ilya Volodin
 */

"use strict";

//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------

const rule = require("../../../lib/rules/no-global-assign"),
    { RuleTester } = require("../../../lib/rule-tester");

//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------

const ruleTester = new RuleTester();

ruleTester.run("no-global-assign", rule, {
    valid: [
        "string = 'hello world';",
        "var string;",
        { code: "Object = 0;", options: [{ exceptions: ["Object"] }] },
        "top = 0;",
        { code: "onload = 0;", env: { browser: true } },
        "require = 0;",
        { code: "a = 1", globals: { a: true } },
        "/*global a:true*/ a = 1"
    ],
    invalid: [
        {
            code: "String = 'hello world';",
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "String" },
                type: "Identifier"
            }]
        },
        {
            code: "String++;",
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "String" },
                type: "Identifier"
            }]
        },
        {
            code: "({Object = 0, String = 0} = {});",
            parserOptions: { ecmaVersion: 6 },
            errors: [
                {
                    messageId: "globalShouldNotBeModified",
                    data: { name: "Object" },
                    type: "Identifier"
                },
                {
                    messageId: "globalShouldNotBeModified",
                    data: { name: "String" },
                    type: "Identifier"
                }
            ]
        },
        {
            code: "top = 0;",
            env: { browser: true },
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "top" },
                type: "Identifier"
            }]
        },
        {
            code: "require = 0;",
            env: { node: true },
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "require" },
                type: "Identifier"
            }]
        },

        // Notifications of readonly are moved from no-undef: https://github.com/eslint/eslint/issues/4504
        {
            code: "/*global b:false*/ function f() { b = 1; }",
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "b" },
                type: "Identifier"
            }]
        },
        {
            code: "function f() { b = 1; }",
            globals: { b: false },
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "b" },
                type: "Identifier"
            }]
        },
        {
            code: "/*global b:false*/ function f() { b++; }",
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "b" },
                type: "Identifier"
            }]
        },
        {
            code: "/*global b*/ b = 1;",
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "b" },
                type: "Identifier"
            }]
        },
        {
            code: "Array = 1;",
            errors: [{
                messageId: "globalShouldNotBeModified",
                data: { name: "Array" },
                type: "Identifier"
            }]
        }
    ]
});