odin-js-fundamentals-part-5/node_modules/unbox-primitive/test/index.js

60 lines
1.1 KiB
JavaScript

'use strict';
var test = require('tape');
var inspect = require('object-inspect');
var is = require('object-is');
var forEach = require('for-each');
var hasSymbols = require('has-symbols')();
var hasBigInts = require('has-bigints')();
var unboxPrimitive = require('..');
var debug = function (v, m) { return inspect(v) + ' ' + m; };
test('primitives', function (t) {
var primitives = [
true,
false,
'',
'foo',
42,
NaN,
Infinity,
0
];
if (hasSymbols) {
primitives.push(Symbol(), Symbol.iterator, Symbol('f'));
}
if (hasBigInts) {
primitives.push(BigInt(42), BigInt(0));
}
forEach(primitives, function (primitive) {
var obj = Object(primitive);
t.ok(
is(unboxPrimitive(obj), primitive),
debug(obj, 'unboxes to ' + inspect(primitive))
);
});
t.end();
});
test('objects', function (t) {
var objects = [
{},
[],
function () {},
/a/g,
new Date()
];
forEach(objects, function (object) {
t['throws'](
function () { unboxPrimitive(object); },
TypeError,
debug(object, 'is not a primitive')
);
});
t.end();
});