[d565449] | 1 | 'use strict';
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| 2 |
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| 3 | var test = require('tape');
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| 4 | var isString = require('../');
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| 5 | var hasToStringTag = require('has-tostringtag/shams')();
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| 6 |
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| 7 | test('not Strings', function (t) {
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| 8 | t.notOk(isString(), 'undefined is not String');
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| 9 | t.notOk(isString(null), 'null is not String');
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| 10 | t.notOk(isString(false), 'false is not String');
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| 11 | t.notOk(isString(true), 'true is not String');
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| 12 | t.notOk(isString([]), 'array is not String');
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| 13 | t.notOk(isString({}), 'object is not String');
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| 14 | t.notOk(isString(function () {}), 'function is not String');
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| 15 | t.notOk(isString(/a/g), 'regex literal is not String');
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| 16 | t.notOk(isString(new RegExp('a', 'g')), 'regex object is not String');
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| 17 | t.notOk(isString(new Date()), 'new Date() is not String');
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| 18 | t.notOk(isString(42), 'number is not String');
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| 19 | t.notOk(isString(Object(42)), 'number object is not String');
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| 20 | t.notOk(isString(NaN), 'NaN is not String');
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| 21 | t.notOk(isString(Infinity), 'Infinity is not String');
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| 22 | t.end();
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| 23 | });
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| 24 |
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| 25 | test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
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| 26 | var fakeString = {
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| 27 | toString: function () { return '7'; },
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| 28 | valueOf: function () { return '42'; }
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| 29 | };
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| 30 | fakeString[Symbol.toStringTag] = 'String';
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| 31 | t.notOk(isString(fakeString), 'fake String with @@toStringTag "String" is not String');
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| 32 | t.end();
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| 33 | });
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| 34 |
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| 35 | test('Strings', function (t) {
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| 36 | t.ok(isString('foo'), 'string primitive is String');
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| 37 | t.ok(isString(Object('foo')), 'string object is String');
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| 38 | t.end();
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| 39 | });
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