/
no-obj-calls.js
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/
no-obj-calls.js
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/**
* @fileoverview Tests for no-obj-calls rule.
* @author James Allardice
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const rule = require("../../../lib/rules/no-obj-calls"),
{ RuleTester } = require("../../../lib/rule-tester");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester();
ruleTester.run("no-obj-calls", rule, {
valid: [
"var x = Math;",
"var x = Math.random();",
"var x = Math.PI;",
"var x = foo.Math();",
"var x = new foo.Math();",
"var x = new Math.foo;",
"var x = new Math.foo();",
"JSON.parse(foo)",
"new JSON.parse",
{
code: "Reflect.get(foo, 'x')",
env: { es6: true }
},
{
code: "new Reflect.foo(a, b)",
env: { es6: true }
},
{
code: "Atomics.load(foo, 0)",
env: { es2017: true }
},
{
code: "new Atomics.foo()",
env: { es2017: true }
},
{
code: "new Intl.Segmenter()",
env: { browser: true }
},
{
code: "Intl.foo()",
env: { browser: true }
},
{ code: "globalThis.Math();", env: { es6: true } },
{ code: "var x = globalThis.Math();", env: { es6: true } },
{ code: "f(globalThis.Math());", env: { es6: true } },
{ code: "globalThis.Math().foo;", env: { es6: true } },
{ code: "var x = globalThis.JSON();", env: { es6: true } },
{ code: "x = globalThis.JSON(str);", env: { es6: true } },
{ code: "globalThis.Math( globalThis.JSON() );", env: { es6: true } },
{ code: "var x = globalThis.Reflect();", env: { es6: true } },
{ code: "var x = globalThis.Reflect();", env: { es2017: true } },
{ code: "/*globals Reflect: true*/ globalThis.Reflect();", env: { es2017: true } },
{ code: "var x = globalThis.Atomics();", env: { es2017: true } },
{ code: "var x = globalThis.Atomics();", globals: { Atomics: false }, env: { es2017: true } },
{ code: "var x = globalThis.Intl();", env: { browser: true } },
{ code: "var x = globalThis.Intl();", globals: { Intl: false }, env: { browser: true } },
// non-existing variables
"/*globals Math: off*/ Math();",
"/*globals Math: off*/ new Math();",
{
code: "JSON();",
globals: { JSON: "off" }
},
{
code: "new JSON();",
globals: { JSON: "off" }
},
"Reflect();",
"Atomics();",
"new Reflect();",
"new Atomics();",
{
code: "Atomics();",
env: { es6: true }
},
"Intl()",
"new Intl()",
// shadowed variables
"var Math; Math();",
"var Math; new Math();",
{
code: "let JSON; JSON();",
parserOptions: { ecmaVersion: 2015 }
},
{
code: "let JSON; new JSON();",
parserOptions: { ecmaVersion: 2015 }
},
{
code: "if (foo) { const Reflect = 1; Reflect(); }",
parserOptions: { ecmaVersion: 2015 },
env: { es6: true }
},
{
code: "if (foo) { const Reflect = 1; new Reflect(); }",
parserOptions: { ecmaVersion: 2015 },
env: { es6: true }
},
"function foo(Math) { Math(); }",
"function foo(JSON) { new JSON(); }",
{
code: "function foo(Atomics) { Atomics(); }",
env: { es2017: true }
},
{
code: "function foo() { if (bar) { let Atomics; if (baz) { new Atomics(); } } }",
parserOptions: { ecmaVersion: 2015 },
env: { es2017: true }
},
"function foo() { var JSON; JSON(); }",
{
code: "function foo() { var Atomics = bar(); var baz = Atomics(5); }",
globals: { Atomics: false }
},
{
code: "var construct = typeof Reflect !== \"undefined\" ? Reflect.construct : undefined; construct();",
globals: { Reflect: false }
},
{
code: "function foo(Intl) { Intl(); }",
env: { browser: true }
},
{
code: "if (foo) { const Intl = 1; Intl(); }",
parserOptions: { ecmaVersion: 2015 },
env: { browser: true }
},
{
code: "if (foo) { const Intl = 1; new Intl(); }",
parserOptions: { ecmaVersion: 2015 },
env: { browser: true }
}
],
invalid: [
{
code: "Math();",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression" }]
},
{
code: "var x = Math();",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression" }]
},
{
code: "f(Math());",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression", column: 3, endColumn: 9 }]
},
{
code: "Math().foo;",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression", column: 1, endColumn: 7 }]
},
{
code: "new Math;",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "NewExpression" }]
},
{
code: "new Math();",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "NewExpression" }]
},
{
code: "new Math(foo);",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "NewExpression" }]
},
{
code: "new Math().foo;",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "NewExpression" }]
},
{
code: "(new Math).foo();",
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "NewExpression" }]
},
{
code: "var x = JSON();",
errors: [{ messageId: "unexpectedCall", data: { name: "JSON" }, type: "CallExpression" }]
},
{
code: "x = JSON(str);",
errors: [{ messageId: "unexpectedCall", data: { name: "JSON" }, type: "CallExpression" }]
},
{
code: "var x = new JSON();",
errors: [{ messageId: "unexpectedCall", data: { name: "JSON" }, type: "NewExpression" }]
},
{
code: "Math( JSON() );",
errors: [
{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression", column: 1, endColumn: 15 },
{ messageId: "unexpectedCall", data: { name: "JSON" }, type: "CallExpression", column: 7, endColumn: 13 }
]
},
{
code: "var x = Reflect();",
env: { es6: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "CallExpression" }]
},
{
code: "var x = new Reflect();",
env: { es6: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "NewExpression" }]
},
{
code: "var x = Reflect();",
env: { es2017: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "CallExpression" }]
},
{
code: "/*globals Reflect: true*/ Reflect();",
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "CallExpression" }]
},
{
code: "/*globals Reflect: true*/ new Reflect();",
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "NewExpression" }]
},
{
code: "var x = Atomics();",
env: { es2017: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Atomics" }, type: "CallExpression" }]
},
{
code: "var x = new Atomics();",
env: { es2017: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Atomics" }, type: "NewExpression" }]
},
{
code: "var x = Atomics();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Atomics" }, type: "CallExpression" }]
},
{
code: "var x = Atomics();",
globals: { Atomics: false },
errors: [{ messageId: "unexpectedCall", data: { name: "Atomics" }, type: "CallExpression" }]
},
{
code: "var x = new Atomics();",
globals: { Atomics: "writable" },
errors: [{ messageId: "unexpectedCall", data: { name: "Atomics" }, type: "NewExpression" }]
},
{
code: "var x = Intl();",
env: { browser: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Intl" }, type: "CallExpression" }]
},
{
code: "var x = new Intl();",
env: { browser: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Intl" }, type: "NewExpression" }]
},
{
code: "/*globals Intl: true*/ Intl();",
errors: [{ messageId: "unexpectedCall", data: { name: "Intl" }, type: "CallExpression" }]
},
{
code: "/*globals Intl: true*/ new Intl();",
errors: [{ messageId: "unexpectedCall", data: { name: "Intl" }, type: "NewExpression" }]
},
{
code: "var x = globalThis.Math();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression" }]
},
{
code: "var x = new globalThis.Math();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "NewExpression" }]
},
{
code: "f(globalThis.Math());",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression", column: 3, endColumn: 20 }]
},
{
code: "globalThis.Math().foo;",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression", column: 1, endColumn: 18 }]
},
{
code: "new globalThis.Math().foo;",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Math" }, type: "NewExpression", column: 1, endColumn: 22 }]
},
{
code: "var x = globalThis.JSON();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "JSON" }, type: "CallExpression" }]
},
{
code: "x = globalThis.JSON(str);",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "JSON" }, type: "CallExpression" }]
},
{
code: "globalThis.Math( globalThis.JSON() );",
env: { es2020: true },
errors: [
{ messageId: "unexpectedCall", data: { name: "Math" }, type: "CallExpression", column: 1, endColumn: 37 },
{ messageId: "unexpectedCall", data: { name: "JSON" }, type: "CallExpression", column: 18, endColumn: 35 }
]
},
{
code: "var x = globalThis.Reflect();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "CallExpression" }]
},
{
code: "var x = new globalThis.Reflect;",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "NewExpression" }]
},
{
code: "/*globals Reflect: true*/ Reflect();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "CallExpression" }]
},
{
code: "var x = globalThis.Atomics();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Atomics" }, type: "CallExpression" }]
},
{
code: "var x = globalThis.Intl();",
env: { browser: true, es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Intl" }, type: "CallExpression" }]
},
{
code: "var x = new globalThis.Intl;",
env: { browser: true, es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Intl" }, type: "NewExpression" }]
},
{
code: "/*globals Intl: true*/ Intl();",
env: { browser: true, es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Intl" }, type: "CallExpression" }]
},
{
code: "var foo = bar ? baz: JSON; foo();",
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "JSON" }, type: "CallExpression" }]
},
{
code: "var foo = bar ? baz: JSON; new foo();",
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "JSON" }, type: "NewExpression" }]
},
{
code: "var foo = bar ? baz: globalThis.JSON; foo();",
env: { es2020: true },
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "JSON" }, type: "CallExpression" }]
},
{
code: "var foo = bar ? baz: globalThis.JSON; new foo();",
env: { es2020: true },
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "JSON" }, type: "NewExpression" }]
},
{
code: "var foo = window.Atomics; foo();",
env: { es2020: true, browser: true },
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "Atomics" }, type: "CallExpression" }]
},
{
code: "var foo = window.Atomics; new foo;",
env: { es2020: true, browser: true },
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "Atomics" }, type: "NewExpression" }]
},
{
code: "var foo = window.Intl; foo();",
env: { es2020: true, browser: true },
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "Intl" }, type: "CallExpression" }]
},
{
code: "var foo = window.Intl; new foo;",
env: { es2020: true, browser: true },
errors: [{ messageId: "unexpectedRefCall", data: { name: "foo", ref: "Intl" }, type: "NewExpression" }]
},
// Optional chaining
{
code: "var x = globalThis?.Reflect();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "CallExpression" }]
},
{
code: "var x = (globalThis?.Reflect)();",
env: { es2020: true },
errors: [{ messageId: "unexpectedCall", data: { name: "Reflect" }, type: "CallExpression" }]
}
]
});