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27 lines
696 B
27 lines
696 B
4 years ago
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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 forEach = require('for-each');
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var isWeakRef = require('..');
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test('isWeakRef', function (t) {
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t.equal(typeof isWeakRef, 'function', 'is a function');
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var nonWeakRefs = [undefined, null, true, false, 42, 0, Infinity, NaN, /a/g, function () {}, {}, []];
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forEach(nonWeakRefs, function (nonWeakRef) {
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t.equal(isWeakRef(nonWeakRef), false, inspect(nonWeakRef) + ' is not a WeakRef');
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});
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t.test('actual WeakRefs', { skip: typeof WeakRef === 'undefined' }, function (st) {
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var ref = new WeakRef({});
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st.equal(isWeakRef(ref), true, inspect(ref) + ' is a WeakRef');
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st.end();
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});
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t.end();
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});
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