68 lines
1.8 KiB
JavaScript
68 lines
1.8 KiB
JavaScript
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'use strict';
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var test = require('tape');
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var debug = require('object-inspect');
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var forEach = require('foreach');
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var has = require('has');
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var v = require('./values');
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var getSymbolDescription = require('../../helpers/getSymbolDescription');
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var getInferredName = require('../../helpers/getInferredName');
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test('getSymbolDescription', function (t) {
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t.test('no symbols', { skip: v.hasSymbols }, function (st) {
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st['throws'](
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getSymbolDescription,
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SyntaxError,
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'requires Symbol support'
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);
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st.end();
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});
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forEach(v.nonSymbolPrimitives.concat(v.objects), function (nonSymbol) {
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t['throws'](
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function () { getSymbolDescription(nonSymbol); },
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v.hasSymbols ? TypeError : SyntaxError,
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debug(nonSymbol) + ' is not a Symbol'
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);
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});
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t.test('with symbols', { skip: !v.hasSymbols }, function (st) {
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forEach(
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[
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[Symbol(), undefined],
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[Symbol(undefined), undefined],
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[Symbol(null), 'null'],
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[Symbol.iterator, 'Symbol.iterator'],
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[Symbol('foo'), 'foo']
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],
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function (pair) {
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var sym = pair[0];
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var desc = pair[1];
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st.equal(getSymbolDescription(sym), desc, debug(sym) + ' description is ' + debug(desc));
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}
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);
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st.test('only possible when inference or native `Symbol.prototype.description` is supported', {
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skip: !getInferredName && !has(Symbol.prototype, 'description')
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}, function (s2t) {
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s2t.equal(getSymbolDescription(Symbol('')), '', 'Symbol("") description is ""');
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s2t.end();
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});
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st.test('only possible when global symbols are supported', {
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skip: !has(Symbol, 'for') || !has(Symbol, 'keyFor')
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}, function (s2t) {
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// eslint-disable-next-line no-restricted-properties
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s2t.equal(getSymbolDescription(Symbol['for']('')), '', 'Symbol.for("") description is ""');
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s2t.end();
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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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