/
getter-return.js
334 lines (308 loc) · 12 KB
/
getter-return.js
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/**
* @fileoverview Enforces that a return statement is present in property getters.
* @author Aladdin-ADD(hh_2013@foxmail.com)
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const rule = require("../../../lib/rules/getter-return");
const { RuleTester } = require("../../../lib/rule-tester");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: 2022 } });
const expectedError = { messageId: "expected", data: { name: "getter 'bar'" } };
const expectedAlwaysError = { messageId: "expectedAlways", data: { name: "getter 'bar'" } };
const options = [{ allowImplicit: true }];
ruleTester.run("getter-return", rule, {
valid: [
/*
* test obj: get
* option: {allowImplicit: false}
*/
"var foo = { get bar(){return true;} };",
// option: {allowImplicit: true}
{ code: "var foo = { get bar() {return;} };", options },
{ code: "var foo = { get bar(){return true;} };", options },
{ code: "var foo = { get bar(){if(bar) {return;} return true;} };", options },
/*
* test class: get
* option: {allowImplicit: false}
*/
"class foo { get bar(){return true;} }",
"class foo { get bar(){if(baz){return true;} else {return false;} } }",
"class foo { get(){return true;} }",
// option: {allowImplicit: true}
{ code: "class foo { get bar(){return true;} }", options },
{ code: "class foo { get bar(){return;} }", options },
/*
* test object.defineProperty(s)
* option: {allowImplicit: false}
*/
"Object.defineProperty(foo, \"bar\", { get: function () {return true;}});",
"Object.defineProperty(foo, \"bar\", { get: function () { ~function (){ return true; }();return true;}});",
"Object.defineProperties(foo, { bar: { get: function () {return true;}} });",
"Object.defineProperties(foo, { bar: { get: function () { ~function (){ return true; }(); return true;}} });",
/*
* test reflect.defineProperty(s)
* option: {allowImplicit: false}
*/
"Reflect.defineProperty(foo, \"bar\", { get: function () {return true;}});",
"Reflect.defineProperty(foo, \"bar\", { get: function () { ~function (){ return true; }();return true;}});",
/*
* test object.create(s)
* option: {allowImplicit: false}
*/
"Object.create(foo, { bar: { get() {return true;} } });",
"Object.create(foo, { bar: { get: function () {return true;} } });",
"Object.create(foo, { bar: { get: () => {return true;} } });",
// option: {allowImplicit: true}
{ code: "Object.defineProperty(foo, \"bar\", { get: function () {return true;}});", options },
{ code: "Object.defineProperty(foo, \"bar\", { get: function (){return;}});", options },
{ code: "Object.defineProperties(foo, { bar: { get: function () {return true;}} });", options },
{ code: "Object.defineProperties(foo, { bar: { get: function () {return;}} });", options },
{ code: "Reflect.defineProperty(foo, \"bar\", { get: function () {return true;}});", options },
// not getter.
"var get = function(){};",
"var get = function(){ return true; };",
"var foo = { bar(){} };",
"var foo = { bar(){ return true; } };",
"var foo = { bar: function(){} };",
"var foo = { bar: function(){return;} };",
"var foo = { bar: function(){return true;} };",
"var foo = { get: function () {} }",
"var foo = { get: () => {}};",
"class C { get; foo() {} }",
"foo.defineProperty(null, { get() {} });",
"foo.defineProperties(null, { bar: { get() {} } });",
"foo.create(null, { bar: { get() {} } });"
],
invalid: [
/*
* test obj: get
* option: {allowImplicit: false}
*/
{
code: "var foo = { get bar() {} };",
errors: [{
...expectedError,
line: 1,
column: 13,
endLine: 1,
endColumn: 20
}]
},
{
code: "var foo = { get\n bar () {} };",
errors: [{
...expectedError,
line: 1,
column: 13,
endLine: 2,
endColumn: 6
}]
},
{
code: "var foo = { get bar(){if(baz) {return true;}} };",
errors: [{
...expectedAlwaysError,
line: 1,
column: 13,
endLine: 1,
endColumn: 20
}]
},
{
code: "var foo = { get bar() { ~function () {return true;}} };",
errors: [{
...expectedError,
line: 1,
column: 13,
endLine: 1,
endColumn: 20
}]
},
{
code: "var foo = { get bar() { return; } };",
errors: [{
...expectedError,
line: 1,
column: 25,
endLine: 1,
endColumn: 32
}]
},
// option: {allowImplicit: true}
{ code: "var foo = { get bar() {} };", options, errors: [expectedError] },
{ code: "var foo = { get bar() {if (baz) {return;}} };", options, errors: [expectedAlwaysError] },
/*
* test class: get
* option: {allowImplicit: false}
*/
{
code: "class foo { get bar(){} }",
errors: [{
...expectedError,
line: 1,
column: 13,
endLine: 1,
endColumn: 20
}]
},
{
code: "var foo = class {\n static get\nbar(){} }",
errors: [{
messageId: "expected",
data: { name: "static getter 'bar'" },
line: 2,
column: 3,
endLine: 3,
endColumn: 4
}]
},
{ code: "class foo { get bar(){ if (baz) { return true; }}}", errors: [expectedAlwaysError] },
{ code: "class foo { get bar(){ ~function () { return true; }()}}", errors: [expectedError] },
// option: {allowImplicit: true}
{ code: "class foo { get bar(){} }", options, errors: [expectedError] },
{ code: "class foo { get bar(){if (baz) {return true;} } }", options, errors: [expectedAlwaysError] },
/*
* test object.defineProperty(s)
* option: {allowImplicit: false}
*/
{
code: "Object.defineProperty(foo, 'bar', { get: function (){}});",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 37,
endLine: 1,
endColumn: 51
}]
},
{
code: "Object.defineProperty(foo, 'bar', { get: function getfoo (){}});",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 37,
endLine: 1,
endColumn: 58
}]
},
{
code: "Object.defineProperty(foo, 'bar', { get(){} });",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 37,
endLine: 1,
endColumn: 40
}]
},
{
code: "Object.defineProperty(foo, 'bar', { get: () => {}});",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 37,
endLine: 1,
endColumn: 42
}]
},
{ code: "Object.defineProperty(foo, \"bar\", { get: function (){if(bar) {return true;}}});", errors: [{ messageId: "expectedAlways" }] },
{ code: "Object.defineProperty(foo, \"bar\", { get: function (){ ~function () { return true; }()}});", errors: [{ messageId: "expected" }] },
/*
* test reflect.defineProperty(s)
* option: {allowImplicit: false}
*/
{
code: "Reflect.defineProperty(foo, 'bar', { get: function (){}});",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 38,
endLine: 1,
endColumn: 52
}]
},
/*
* test object.create(s)
* option: {allowImplicit: false}
*/
{
code: "Object.create(foo, { bar: { get: function() {} } })",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 29,
endLine: 1,
endColumn: 42
}]
},
{
code: "Object.create(foo, { bar: { get() {} } })",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 29,
endLine: 1,
endColumn: 32
}]
},
{
code: "Object.create(foo, { bar: { get: () => {} } })",
errors: [{
messageId: "expected",
data: { name: "method 'get'" },
line: 1,
column: 29,
endLine: 1,
endColumn: 34
}]
},
// option: {allowImplicit: true}
{ code: "Object.defineProperties(foo, { bar: { get: function () {}} });", options, errors: [{ messageId: "expected" }] },
{ code: "Object.defineProperties(foo, { bar: { get: function (){if(bar) {return true;}}}});", options, errors: [{ messageId: "expectedAlways" }] },
{ code: "Object.defineProperties(foo, { bar: { get: function () {~function () { return true; }()}} });", options, errors: [{ messageId: "expected" }] },
{ code: "Object.defineProperty(foo, \"bar\", { get: function (){}});", options, errors: [{ messageId: "expected" }] },
{ code: "Object.create(foo, { bar: { get: function (){} } });", options, errors: [{ messageId: "expected" }] },
{ code: "Reflect.defineProperty(foo, \"bar\", { get: function (){}});", options, errors: [{ messageId: "expected" }] },
// Optional chaining
{
code: "Object?.defineProperty(foo, 'bar', { get: function (){} });",
parserOptions: { ecmaVersion: 2020 },
errors: [{ messageId: "expected", data: { name: "method 'get'" } }]
},
{
code: "(Object?.defineProperty)(foo, 'bar', { get: function (){} });",
parserOptions: { ecmaVersion: 2020 },
errors: [{ messageId: "expected", data: { name: "method 'get'" } }]
},
{
code: "Object?.defineProperty(foo, 'bar', { get: function (){} });",
options,
parserOptions: { ecmaVersion: 2020 },
errors: [{ messageId: "expected", data: { name: "method 'get'" } }]
},
{
code: "(Object?.defineProperty)(foo, 'bar', { get: function (){} });",
options,
parserOptions: { ecmaVersion: 2020 },
errors: [{ messageId: "expected", data: { name: "method 'get'" } }]
},
{
code: "(Object?.create)(foo, { bar: { get: function (){} } });",
options,
parserOptions: { ecmaVersion: 2020 },
errors: [{ messageId: "expected", data: { name: "method 'get'" } }]
}
]
});