computed-property-even-spacing.js
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/**
* @fileoverview Disallows or enforces spaces inside computed properties.
* @author Jamund Ferguson
* @copyright 2015 Jamund Ferguson. All rights reserved.
*/
'use strict'
// ------------------------------------------------------------------------------
// Requirements
// ------------------------------------------------------------------------------
var RuleTester = require('eslint').RuleTester
var rule = require('../rules/computed-property-even-spacing')
// ------------------------------------------------------------------------------
// Tests
// ------------------------------------------------------------------------------
var ruleTester = new RuleTester()
ruleTester.run('computed-property-even-spacing', rule, {
valid: [
// even
{ code: 'bar[ foo ]', options: ['even'] },
{ code: 'bar[foo]', options: ['even'] },
{ code: "bar['foo']", options: ['even'] },
{ code: "bar[ 'foo' ]", options: ['even'] },
// default - never
{ code: 'obj[foo]' },
{ code: "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: 'obj[ obj2[ foo ] ]', 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['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'] },
{ code: 'bar[ foo ]', options: ['even'] },
// even - unrelated cases
{ code: 'const { a, ...b } = obj', options: ['even'], parserOptions: { ecmaVersion: 6, ecmaFeatures: { experimentalObjectRestSpread: true } } },
{ code: 'func(a, { ...b })', options: ['even'], parserOptions: { ecmaVersion: 6, ecmaFeatures: { experimentalObjectRestSpread: true } } }
],
invalid: [
// even
{ code: "bar[ 'foo' ]", options: ['even'], errors: [{ message: 'Expected 1 or 0 spaces around "[" and "]"' }] },
{ code: "bar['foo' ]", options: ['even'], errors: [{ message: 'Expected 1 or 0 spaces around "[" and "]"' }] },
{ code: "bar[ 'foo' ]", options: ['even'], errors: [{ message: 'Expected 1 or 0 spaces around "[" and "]"' }] },
{ code: "bar[ 'foo']", options: ['even'], errors: [{ message: 'Expected 1 or 0 spaces around "[" and "]"' }] },
{ code: "bar[\n'foo' ]", options: ['even'], errors: [{ message: 'Expected "[" and "]" to be on the same line' }] },
{ code: "bar[\n'foo' ]", options: ['even'], errors: [{ message: 'Expected "[" and "]" to be on the same line' }] },
{ code: "bar[\n'foo' ]", options: ['even'], errors: [{ message: 'Expected "[" and "]" to be on the same line' }] },
{ code: "bar[\n\t'foo' ]", options: ['even'], errors: [{ message: 'Expected "[" and "]" to be on the same line' }] },
{ code: "bar[\n\t'foo'\n]", options: ['even'], errors: [{ message: 'Expected "[" and "]" to be on the same line' }] },
{
code: 'var foo = obj[ 1];',
options: ['always'],
errors: [
{
message: "A space is required before ']'",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'var foo = obj[1 ];',
options: ['always'],
errors: [
{
message: "A space is required after '['",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'var foo = obj[ 1];',
options: ['never'],
errors: [
{
message: "There should be no space after '['",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'var foo = obj[1 ];',
options: ['never'],
errors: [
{
message: "There should be no space before ']'",
type: 'MemberExpression'
}
]
},
{
code: 'var foo = obj[ 1];',
options: ['always'],
errors: [
{
message: "A space is required before ']'",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'var foo = obj[1 ];',
options: ['always'],
errors: [
{
message: "A space is required after '['",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'obj[ foo ]',
options: ['never'],
errors: [
{
message: "There should be no space after '['",
type: 'MemberExpression',
line: 1
},
{
message: "There should be no space before ']'",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'obj[foo ]',
options: ['never'],
errors: [
{
message: "There should be no space before ']'",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'obj[ foo]',
options: ['never'],
errors: [
{
message: "There should be no space after '['",
type: 'MemberExpression',
line: 1
}
]
},
{
code: 'var foo = obj[1]',
options: ['always'],
errors: [
{
message: "A space is required after '['",
type: 'MemberExpression',
line: 1
},
{
message: "A space is required before ']'",
type: 'MemberExpression',
line: 1
}
]
},
// always - objectLiteralComputedProperties
{
code: 'var x = {[a]: b}',
options: ['always'],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "A space is required after '['",
type: 'Property',
line: 1
},
{
message: "A space is required before ']'",
type: 'Property',
line: 1
}
]
},
{
code: 'var x = {[a ]: b}',
options: ['always'],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "A space is required after '['",
type: 'Property',
line: 1
}
]
},
{
code: 'var x = {[ a]: b}',
options: ['always'],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "A space is required before ']'",
type: 'Property',
line: 1
}
]
},
// never - objectLiteralComputedProperties
{
code: 'var x = {[ a ]: b}',
options: ['never'],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "There should be no space after '['",
type: 'Property',
line: 1
},
{
message: "There should be no space before ']'",
type: 'Property',
line: 1
}
]
},
{
code: 'var x = {[a ]: b}',
options: ['never'],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "There should be no space before ']'",
type: 'Property',
line: 1
}
]
},
{
code: 'var x = {[ a]: b}',
options: ['never'],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "There should be no space after '['",
type: 'Property',
line: 1
}
]
},
{
code: 'var x = {[ a\n]: b}',
options: ['never'],
parserOptions: { ecmaVersion: 6 },
errors: [
{
message: "There should be no space after '['",
type: 'Property',
line: 1
}
]
}
]
})