source: imaps-frontend/node_modules/is-weakmap/test/index.js

'use strict';

var test = require('tape');
var debug = require('object-inspect');
var forEach = require('for-each');

var isWeakMap = require('..');

test('non-collections', function (t) {
        forEach([
                null,
                undefined,
                true,
                false,
                42,
                0,
                -0,
                NaN,
                Infinity,
                '',
                'foo',
                /a/g,
                [],
                {},
                function () {}
        ], function (nonCollection) {
                t.equal(isWeakMap(nonCollection), false, debug(nonCollection) + ' is not a WeakMap');
        });

        t.end();
});

test('Maps', { skip: typeof Map !== 'function' }, function (t) {
        var m = new Map();
        t.equal(isWeakMap(m), false, debug(m) + ' is not a WeakMap');

        t.end();
});

test('Sets', { skip: typeof Set !== 'function' }, function (t) {
        var s = new Set();
        t.equal(isWeakMap(s), false, debug(s) + ' is not a WeakMap');

        t.end();
});

test('WeakMaps', { skip: typeof WeakMap !== 'function' }, function (t) {
        var wm = new WeakMap();
        t.equal(isWeakMap(wm), true, debug(wm) + ' is a WeakMap');

        t.end();
});

test('WeakSets', { skip: typeof WeakSet !== 'function' }, function (t) {
        var ws = new WeakSet();
        t.equal(isWeakMap(ws), false, debug(ws) + ' is not a WeakMap');

        t.end();
});