forked from public/fvtt-cthulhu-eternal
27 lines
803 B
JavaScript
27 lines
803 B
JavaScript
|
'use strict'
|
||
|
|
|
||
|
|
const { supports } = require('..')
|
||
|
|
|
||
|
|
// Every object in a manifest must have a unique identity, to avoid accidental
|
||
|
|
// mutation. In supports() we only shallowly clone the manifest object itself
|
||
|
|
// and additionalMethods. If in the future we add more objects to manifests,
|
||
|
|
// this test will break and we'll know to start performing a deep clone.
|
||
|
|
module.exports = function cloneable (t, manifest) {
|
||
|
|
const copy = supports(manifest)
|
||
|
|
verifyUnique(t, 'manifest', manifest, copy)
|
||
|
|
}
|
||
|
|
|
||
|
|
function verifyUnique (t, path, a, b) {
|
||
|
|
if (isObject(a) && isObject(b)) {
|
||
|
|
t.ok(a !== b, path + ' has unique identity')
|
||
|
|
|
||
|
|
Object.keys(a).forEach(function (key) {
|
||
|
|
verifyUnique(t, path + '.' + key, a[key], b[key])
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function isObject (o) {
|
||
|
|
return typeof o === 'object' && o !== null
|
||
|
|
}
|