/
computed-property-spacing.js
957 lines (933 loc) · 32.4 KB
/
computed-property-spacing.js
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/**
* @fileoverview Disallows or enforces spaces inside computed properties.
* @author Jamund Ferguson
*/
"use strict";
//------------------------------------------------------------------------------
// Requirements
//------------------------------------------------------------------------------
const rule = require("../../../lib/rules/computed-property-spacing"),
{ RuleTester } = require("../../../lib/rule-tester");
//------------------------------------------------------------------------------
// Tests
//------------------------------------------------------------------------------
const ruleTester = new RuleTester();
ruleTester.run("computed-property-spacing", rule, {
valid: [
// default - never
"obj[foo]",
"obj['foo']",
{ code: "var x = {[b]: a}", parserOptions: { ecmaVersion: 6 } },
// always
{ code: "obj[ foo ]", options: ["always"] },
{ code: "obj[\nfoo\n]", options: ["always"] },
{ code: "obj[ 'foo' ]", options: ["always"] },
{ code: "obj[ 'foo' + 'bar' ]", options: ["always"] },
{ code: "obj[ obj2[ foo ] ]", options: ["always"] },
{ code: "obj.map(function(item) { return [\n1,\n2,\n3,\n4\n]; })", options: ["always"] },
{ code: "obj[ 'map' ](function(item) { return [\n1,\n2,\n3,\n4\n]; })", options: ["always"] },
{ code: "obj[ 'for' + 'Each' ](function(item) { return [\n1,\n2,\n3,\n4\n]; })", options: ["always"] },
{ code: "var foo = obj[ 1 ]", options: ["always"] },
{ code: "var foo = obj[ 'foo' ];", options: ["always"] },
{ code: "var foo = obj[ [1, 1] ];", options: ["always"] },
// always - objectLiteralComputedProperties
{ code: "var x = {[ \"a\" ]: a}", options: ["always"], parserOptions: { ecmaVersion: 6 } },
{ code: "var y = {[ x ]: a}", options: ["always"], parserOptions: { ecmaVersion: 6 } },
{ code: "var x = {[ \"a\" ]() {}}", options: ["always"], parserOptions: { ecmaVersion: 6 } },
{ code: "var y = {[ x ]() {}}", options: ["always"], parserOptions: { ecmaVersion: 6 } },
// always - unrelated cases
{ code: "var foo = {};", options: ["always"] },
{ code: "var foo = [];", options: ["always"] },
// never
{ code: "obj[foo]", options: ["never"] },
{ code: "obj['foo']", options: ["never"] },
{ code: "obj['foo' + 'bar']", options: ["never"] },
{ code: "obj['foo'+'bar']", options: ["never"] },
{ code: "obj[obj2[foo]]", options: ["never"] },
{ code: "obj.map(function(item) { return [\n1,\n2,\n3,\n4\n]; })", options: ["never"] },
{ code: "obj['map'](function(item) { return [\n1,\n2,\n3,\n4\n]; })", options: ["never"] },
{ code: "obj['for' + 'Each'](function(item) { return [\n1,\n2,\n3,\n4\n]; })", options: ["never"] },
{ code: "obj[\nfoo]", options: ["never"] },
{ code: "obj[foo\n]", options: ["never"] },
{ code: "var foo = obj[1]", options: ["never"] },
{ code: "var foo = obj['foo'];", options: ["never"] },
{ code: "var foo = obj[[ 1, 1 ]];", options: ["never"] },
// never - objectLiteralComputedProperties
{ code: "var x = {[\"a\"]: a}", options: ["never"], parserOptions: { ecmaVersion: 6 } },
{ code: "var y = {[x]: a}", options: ["never"], parserOptions: { ecmaVersion: 6 } },
{ code: "var x = {[\"a\"]() {}}", options: ["never"], parserOptions: { ecmaVersion: 6 } },
{ code: "var y = {[x]() {}}", options: ["never"], parserOptions: { ecmaVersion: 6 } },
// never - unrelated cases
{ code: "var foo = {};", options: ["never"] },
{ code: "var foo = [];", options: ["never"] },
//------------------------------------------------------------------------------
// Classes
//------------------------------------------------------------------------------
// test default settings
{
code: "class A { [ a ](){} }",
parserOptions: { ecmaVersion: 6 }
},
{
code: "class A { [ a ](){} get [ b ](){} set [ c ](foo){} static [ d ](){} static get [ e ](){} static set [ f ](bar){} }",
options: ["never"],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [ a ](){} get [ b ](){} set [ c ](foo){} static [ d ](){} static get [ e ](){} static set [ f ](bar){} }",
options: ["never", {}],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [a](){} }",
options: ["always"],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [a](){} get [b](){} set [c](foo){} static [d](){} static get [e](){} static set [f](bar){} }",
options: ["always"],
parserOptions: { ecmaVersion: 6 }
},
{
code: "class A { [a](){} get [b](){} set [c](foo){} static [d](){} static get [e](){} static set [f](bar){} }",
options: ["always", {}],
parserOptions: { ecmaVersion: 6 }
},
// explicitly disabled option
{
code: "class A { [ a ](){} }",
options: ["never", { enforceForClassMembers: false }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [ a ](){} get [ b ](){} set [ c ](foo){} static [ d ](){} static get [ e ](){} static set [ f ](bar){} }",
options: ["never", { enforceForClassMembers: false }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [a](){} }",
options: ["always", { enforceForClassMembers: false }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "class A { [a](){} get [b](){} set [b](foo){} static [c](){} static get [d](){} static set [d](bar){} }",
options: ["always", { enforceForClassMembers: false }],
parserOptions: { ecmaVersion: 6 }
},
// valid spacing
{
code: "A = class { [a](){} }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "class A { [a] ( ) { } }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [ \n a \n ](){} }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "class A { [a](){} get [b](){} set [b](foo){} static [c](){} static get [d](){} static set [d](bar){} }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "class A { [ a ](){} }",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "class A { [ a ](){}[ b ](){} }",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [\na\n](){} }",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class { [ a ](){} get [ b ](){} set [ c ](foo){} static [ d ](){} static get [ e ](){} static set [ f ](bar){} }",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
// non-computed
{
code: "class A { a ( ) { } get b(){} set b ( foo ){} static c (){} static get d() {} static set d( bar ) {} }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: "A = class {a(){}get b(){}set b(foo){}static c(){}static get d(){}static set d(bar){}}",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 }
},
{
code: [
"const foo = {",
" [ (a) ]: 1",
"}"
].join("\n"),
options: ["always"],
parserOptions: { ecmaVersion: 6 }
},
{
code: [
"const foo = {",
" [ ( a ) ]: 1",
"}"
].join("\n"),
options: ["always"],
parserOptions: { ecmaVersion: 6 }
},
{
code: [
"const foo = {",
" [( a )]: 1",
"}"
].join("\n"),
options: ["never"],
parserOptions: { ecmaVersion: 6 }
},
{
code: [
"const foo = {",
" [ /**/ a /**/ ]: 1",
"}"
].join("\n"),
options: ["always"],
parserOptions: { ecmaVersion: 6 }
},
{
code: [
"const foo = {",
" [/**/ a /**/]: 1",
"}"
].join("\n"),
options: ["never"],
parserOptions: { ecmaVersion: 6 }
}
],
invalid: [
{
code: "var foo = obj[ 1];",
output: "var foo = obj[ 1 ];",
options: ["always"],
errors: [
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MemberExpression",
column: 17,
line: 1
}
]
},
{
code: "var foo = obj[1 ];",
output: "var foo = obj[ 1 ];",
options: ["always"],
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MemberExpression",
column: 14,
line: 1
}
]
},
{
code: "var foo = obj[ 1];",
output: "var foo = obj[1];",
options: ["never"],
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MemberExpression",
column: 14,
line: 1
}
]
},
{
code: "var foo = obj[1 ];",
output: "var foo = obj[1];",
options: ["never"],
errors: [
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MemberExpression"
}
]
},
{
code: "obj[ foo ]",
output: "obj[foo]",
options: ["never"],
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MemberExpression",
column: 4,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MemberExpression",
column: 10,
line: 1
}
]
},
{
code: "obj[foo ]",
output: "obj[foo]",
options: ["never"],
errors: [
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MemberExpression",
column: 9,
line: 1
}
]
},
{
code: "obj[ foo]",
output: "obj[foo]",
options: ["never"],
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MemberExpression",
column: 4,
line: 1
}
]
},
{
code: "var foo = obj[1]",
output: "var foo = obj[ 1 ]",
options: ["always"],
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MemberExpression",
column: 14,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MemberExpression",
column: 16,
line: 1
}
]
},
// always - objectLiteralComputedProperties
{
code: "var x = {[a]: b}",
output: "var x = {[ a ]: b}",
options: ["always"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 10,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 12,
line: 1
}
]
},
{
code: "var x = {[a ]: b}",
output: "var x = {[ a ]: b}",
options: ["always"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 10,
line: 1
}
]
},
{
code: "var x = {[ a]: b}",
output: "var x = {[ a ]: b}",
options: ["always"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 13,
line: 1
}
]
},
// never - objectLiteralComputedProperties
{
code: "var x = {[ a ]: b}",
output: "var x = {[a]: b}",
options: ["never"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 10,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 14,
line: 1
}
]
},
{
code: "var x = {[a ]: b}",
output: "var x = {[a]: b}",
options: ["never"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 13,
line: 1
}
]
},
{
code: "var x = {[ a]: b}",
output: "var x = {[a]: b}",
options: ["never"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 10,
line: 1
}
]
},
{
code: "var x = {[ a\n]: b}",
output: "var x = {[a\n]: b}",
options: ["never"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 10,
line: 1
}
]
},
//------------------------------------------------------------------------------
// Classes
//------------------------------------------------------------------------------
// never
{
code: "class A { [ a](){} }",
output: "class A { [a](){} }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 11,
line: 1
}
]
},
{
code: "A = class { [a](){} b(){} static [c ](){} static [d](){}}",
output: "A = class { [a](){} b(){} static [c](){} static [d](){}}",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 37,
line: 1
}
]
},
{
code: "class A { get [a ](){} set [ a](foo){} get b(){} static set b(bar){} static get [ a](){} static set [a ](baz){} }",
output: "class A { get [a](){} set [a](foo){} get b(){} static set b(bar){} static get [a](){} static set [a](baz){} }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 18,
line: 1
},
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 28,
line: 1
},
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 81,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 104,
line: 1
}
]
},
{
code: "A = class { [ a ](){} get [ b ](){} set [ c ](foo){} static [ d ](){} static get [ e ](){} static set [ f ](bar){} }",
output: "A = class { [a](){} get [b](){} set [c](foo){} static [d](){} static get [e](){} static set [f](bar){} }",
options: ["never", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 13,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 17,
line: 1
},
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 27,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 31,
line: 1
},
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 41,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 45,
line: 1
},
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 61,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 65,
line: 1
},
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 82,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 86,
line: 1
},
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 103,
line: 1
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 107,
line: 1
}
]
},
// always
{
code: "class A { [ a](){} }",
output: "class A { [ a ](){} }",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 14,
line: 1
}
]
},
{
code: "A = class { [ a ](){} b(){} static [c ](){} static [ d ](){}}",
output: "A = class { [ a ](){} b(){} static [ c ](){} static [ d ](){}}",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 36,
line: 1
}
]
},
{
code: "class A { get [a ](){} set [ a](foo){} get b(){} static set b(bar){} static get [ a](){} static set [a ](baz){} }",
output: "class A { get [ a ](){} set [ a ](foo){} get b(){} static set b(bar){} static get [ a ](){} static set [ a ](baz){} }",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 15,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 31,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 84,
line: 1
},
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 101,
line: 1
}
]
},
{
code: "A = class { [a](){} get [b](){} set [c](foo){} static [d](){} static get [e](){} static set [f](bar){} }",
output: "A = class { [ a ](){} get [ b ](){} set [ c ](foo){} static [ d ](){} static get [ e ](){} static set [ f ](bar){} }",
options: ["always", { enforceForClassMembers: true }],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 13,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 15,
line: 1
},
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 25,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 27,
line: 1
},
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 37,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 39,
line: 1
},
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 55,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 57,
line: 1
},
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 74,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 76,
line: 1
},
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "MethodDefinition",
column: 93,
line: 1
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "MethodDefinition",
column: 95,
line: 1
}
]
},
{
code: [
"const foo = {",
" [(a)]: 1",
"}"
].join("\n"),
output: [
"const foo = {",
" [ (a) ]: 1",
"}"
].join("\n"),
options: ["always"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 3,
line: 2
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 7,
line: 2
}
]
},
{
code: [
"const foo = {",
" [( a )]: 1",
"}"
].join("\n"),
output: [
"const foo = {",
" [ ( a ) ]: 1",
"}"
].join("\n"),
options: ["always"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 3,
line: 2
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 9,
line: 2
}
]
},
{
code: [
"const foo = {",
" [ ( a ) ]: 1",
"}"
].join("\n"),
output: [
"const foo = {",
" [( a )]: 1",
"}"
].join("\n"),
options: ["never"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 3,
line: 2
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 11,
line: 2
}
]
},
{
code: [
"const foo = {",
" [/**/ a /**/]: 1",
"}"
].join("\n"),
output: [
"const foo = {",
" [ /**/ a /**/ ]: 1",
"}"
].join("\n"),
options: ["always"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "missingSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 3,
line: 2
},
{
messageId: "missingSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 15,
line: 2
}
]
},
{
code: [
"const foo = {",
" [ /**/ a /**/ ]: 1",
"}"
].join("\n"),
output: [
"const foo = {",
" [/**/ a /**/]: 1",
"}"
].join("\n"),
options: ["never"],
parserOptions: { ecmaVersion: 6 },
errors: [
{
messageId: "unexpectedSpaceAfter",
data: { tokenValue: "[" },
type: "Property",
column: 3,
line: 2
},
{
messageId: "unexpectedSpaceBefore",
data: { tokenValue: "]" },
type: "Property",
column: 17,
line: 2
}
]
}
]
});