67 lines
1.5 KiB
JavaScript
67 lines
1.5 KiB
JavaScript
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'use strict';
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var test = require('tape');
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var inspect = require('object-inspect');
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var whichBoxedPrimitive = require('..');
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var debug = function (v, m) { return inspect(v) + ' ' + m; };
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var forEach = function (arr, func) {
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var i;
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for (i = 0; i < arr.length; ++i) {
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func(arr[i], i, arr);
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}
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};
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var hasSymbols = require('has-symbols')();
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var hasBigInts = typeof BigInt === 'function';
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var primitives = [
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true,
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false,
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42,
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NaN,
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Infinity,
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'',
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'foo'
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].concat(
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hasSymbols ? [Symbol(), Symbol.iterator] : [],
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hasBigInts ? BigInt(42) : []
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);
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var objects = [
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/a/g,
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new Date(),
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function () {},
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[],
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{}
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];
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test('isBoxedPrimitive', function (t) {
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t.test('unboxed primitives', function (st) {
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forEach([null, undefined].concat(primitives), function (primitive) {
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st.equal(null, whichBoxedPrimitive(primitive), debug(primitive, 'is a primitive, but not a boxed primitive'));
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});
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st.end();
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});
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t.test('boxed primitives', function (st) {
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forEach(primitives, function (primitive) {
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var boxed = Object(primitive);
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var expected = boxed.constructor.name;
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st.equal(typeof expected, 'string', 'expected is string');
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st.equal(whichBoxedPrimitive(boxed), expected, debug(boxed, 'is a boxed primitive: ' + expected));
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});
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st.end();
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});
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t.test('non-primitive objects', function (st) {
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forEach(objects, function (object) {
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st.equal(undefined, whichBoxedPrimitive(object), debug(object, 'is not a primitive, boxed or otherwise'));
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});
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st.end();
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});
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t.end();
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});
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