/
no-useless-computed-key.js
584 lines (577 loc) · 21.9 KB
/
no-useless-computed-key.js
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/**
* @fileoverview Tests for no-useless-computed-key rule.
* @author Burak Yigit Kaya
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const rule = require("../../../lib/rules/no-useless-computed-key"),
{ RuleTester } = require("../../../lib/rule-tester");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 2022 } });
ruleTester.run("no-useless-computed-key", rule, {
valid: [
"({ 'a': 0, b(){} })",
"({ [x]: 0 });",
"({ a: 0, [b](){} })",
"({ ['__proto__']: [] })",
{ code: "class Foo { a() {} }", options: [{ enforceForClassMembers: true }] },
{ code: "class Foo { 'a'() {} }", options: [{ enforceForClassMembers: true }] },
{ code: "class Foo { [x]() {} }", options: [{ enforceForClassMembers: true }] },
{ code: "class Foo { ['constructor']() {} }", options: [{ enforceForClassMembers: true }] },
{ code: "class Foo { static ['prototype']() {} }", options: [{ enforceForClassMembers: true }] },
{ code: "(class { 'a'() {} })", options: [{ enforceForClassMembers: true }] },
{ code: "(class { [x]() {} })", options: [{ enforceForClassMembers: true }] },
{ code: "(class { ['constructor']() {} })", options: [{ enforceForClassMembers: true }] },
{ code: "(class { static ['prototype']() {} })", options: [{ enforceForClassMembers: true }] },
"class Foo { ['x']() {} }",
"(class { ['x']() {} })",
"class Foo { static ['constructor']() {} }",
"class Foo { ['prototype']() {} }",
{ code: "class Foo { ['x']() {} }", options: [{ enforceForClassMembers: false }] },
{ code: "(class { ['x']() {} })", options: [{ enforceForClassMembers: false }] },
{ code: "class Foo { static ['constructor']() {} }", options: [{ enforceForClassMembers: false }] },
{ code: "class Foo { ['prototype']() {} }", options: [{ enforceForClassMembers: false }] },
{ code: "class Foo { a }", options: [{ enforceForClassMembers: true }] },
{ code: "class Foo { ['constructor'] }", options: [{ enforceForClassMembers: true }] },
{ code: "class Foo { static ['constructor'] }", options: [{ enforceForClassMembers: true }] },
{ code: "class Foo { static ['prototype'] }", options: [{ enforceForClassMembers: true }] },
/*
* Well-known browsers throw syntax error bigint literals on property names,
* so, this rule doesn't touch those for now.
*/
{
code: "({ [99999999999999999n]: 0 })",
parserOptions: { ecmaVersion: 2020 }
}
],
invalid: [
{
code: "({ ['0']: 0 })",
output: "({ '0': 0 })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'0'" },
type: "Property"
}]
}, {
code: "({ ['0+1,234']: 0 })",
output: "({ '0+1,234': 0 })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'0+1,234'" },
type: "Property"
}]
}, {
code: "({ [0]: 0 })",
output: "({ 0: 0 })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "0" },
type: "Property"
}]
}, {
code: "({ ['x']: 0 })",
output: "({ 'x': 0 })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "Property"
}]
}, {
code: "({ ['x']() {} })",
output: "({ 'x'() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "Property"
}]
}, {
code: "({ [/* this comment prevents a fix */ 'x']: 0 })",
output: null,
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "Property"
}]
}, {
code: "({ ['x' /* this comment also prevents a fix */]: 0 })",
output: null,
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "Property"
}]
}, {
code: "({ [('x')]: 0 })",
output: "({ 'x': 0 })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "Property"
}]
}, {
code: "({ *['x']() {} })",
output: "({ *'x'() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "Property"
}]
}, {
code: "({ async ['x']() {} })",
output: "({ async 'x'() {} })",
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "Property"
}]
}, {
code: "({ get[.2]() {} })",
output: "({ get.2() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: ".2" },
type: "Property"
}]
}, {
code: "({ set[.2](value) {} })",
output: "({ set.2(value) {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: ".2" },
type: "Property"
}]
}, {
code: "({ async[.2]() {} })",
output: "({ async.2() {} })",
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: ".2" },
type: "Property"
}]
}, {
code: "({ [2]() {} })",
output: "({ 2() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ get [2]() {} })",
output: "({ get 2() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ set [2](value) {} })",
output: "({ set 2(value) {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ async [2]() {} })",
output: "({ async 2() {} })",
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ get[2]() {} })",
output: "({ get 2() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ set[2](value) {} })",
output: "({ set 2(value) {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ async[2]() {} })",
output: "({ async 2() {} })",
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ get['foo']() {} })",
output: "({ get'foo'() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'foo'" },
type: "Property"
}]
}, {
code: "({ *[2]() {} })",
output: "({ *2() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ async*[2]() {} })",
output: "({ async*2() {} })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "Property"
}]
}, {
code: "({ ['constructor']: 1 })",
output: "({ 'constructor': 1 })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'constructor'" },
type: "Property"
}]
}, {
code: "({ ['prototype']: 1 })",
output: "({ 'prototype': 1 })",
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'prototype'" },
type: "Property"
}]
}, {
code: "class Foo { ['0']() {} }",
output: "class Foo { '0'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'0'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { ['0+1,234']() {} }",
output: "class Foo { '0+1,234'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'0+1,234'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { ['x']() {} }",
output: "class Foo { 'x'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { [/* this comment prevents a fix */ 'x']() {} }",
output: null,
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { ['x' /* this comment also prevents a fix */]() {} }",
output: null,
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { [('x')]() {} }",
output: "class Foo { 'x'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { *['x']() {} }",
output: "class Foo { *'x'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { async ['x']() {} }",
output: "class Foo { async 'x'() {} }",
options: [{ enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { get[.2]() {} }",
output: "class Foo { get.2() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: ".2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { set[.2](value) {} }",
output: "class Foo { set.2(value) {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: ".2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { async[.2]() {} }",
output: "class Foo { async.2() {} }",
options: [{ enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: ".2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { [2]() {} }",
output: "class Foo { 2() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { get [2]() {} }",
output: "class Foo { get 2() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { set [2](value) {} }",
output: "class Foo { set 2(value) {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { async [2]() {} }",
output: "class Foo { async 2() {} }",
options: [{ enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { get[2]() {} }",
output: "class Foo { get 2() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { set[2](value) {} }",
output: "class Foo { set 2(value) {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { async[2]() {} }",
output: "class Foo { async 2() {} }",
options: [{ enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 8 },
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { get['foo']() {} }",
output: "class Foo { get'foo'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'foo'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { *[2]() {} }",
output: "class Foo { *2() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { async*[2]() {} }",
output: "class Foo { async*2() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "2" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { static ['constructor']() {} }",
output: "class Foo { static 'constructor'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'constructor'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { ['prototype']() {} }",
output: "class Foo { 'prototype'() {} }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'prototype'" },
type: "MethodDefinition"
}]
}, {
code: "(class { ['x']() {} })",
output: "(class { 'x'() {} })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'x'" },
type: "MethodDefinition"
}]
}, {
code: "(class { ['__proto__']() {} })",
output: "(class { '__proto__'() {} })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'__proto__'" },
type: "MethodDefinition"
}]
}, {
code: "(class { static ['__proto__']() {} })",
output: "(class { static '__proto__'() {} })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'__proto__'" },
type: "MethodDefinition"
}]
}, {
code: "(class { static ['constructor']() {} })",
output: "(class { static 'constructor'() {} })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'constructor'" },
type: "MethodDefinition"
}]
}, {
code: "(class { ['prototype']() {} })",
output: "(class { 'prototype'() {} })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'prototype'" },
type: "MethodDefinition"
}]
}, {
code: "class Foo { ['0'] }",
output: "class Foo { '0' }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'0'" },
type: "PropertyDefinition"
}]
}, {
code: "class Foo { ['0'] = 0 }",
output: "class Foo { '0' = 0 }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'0'" },
type: "PropertyDefinition"
}]
}, {
code: "class Foo { static[0] }",
output: "class Foo { static 0 }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "0" },
type: "PropertyDefinition"
}]
}, {
code: "class Foo { ['#foo'] }",
output: "class Foo { '#foo' }",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'#foo'" },
type: "PropertyDefinition"
}]
}, {
code: "(class { ['__proto__'] })",
output: "(class { '__proto__' })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'__proto__'" },
type: "PropertyDefinition"
}]
}, {
code: "(class { static ['__proto__'] })",
output: "(class { static '__proto__' })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'__proto__'" },
type: "PropertyDefinition"
}]
}, {
code: "(class { ['prototype'] })",
output: "(class { 'prototype' })",
options: [{ enforceForClassMembers: true }],
errors: [{
messageId: "unnecessarilyComputedProperty",
data: { property: "'prototype'" },
type: "PropertyDefinition"
}]
}
]
});