Sha256: 844555a347fa45e2de748c650dd7061dd13e7c082415b3ad8459e9a60af39dfd
Contents?: true
Size: 1.44 KB
Versions: 14
Compression:
Stored size: 1.44 KB
Contents
'use strict';
var test = require('tape');
var isString = require('./');
var hasSymbols = typeof Symbol === 'function' && typeof Symbol() === 'symbol';
test('not Strings', function (t) {
t.notOk(isString(), 'undefined is not String');
t.notOk(isString(null), 'null is not String');
t.notOk(isString(false), 'false is not String');
t.notOk(isString(true), 'true is not String');
t.notOk(isString([]), 'array is not String');
t.notOk(isString({}), 'object is not String');
t.notOk(isString(function () {}), 'function is not String');
t.notOk(isString(/a/g), 'regex literal is not String');
t.notOk(isString(new RegExp('a', 'g')), 'regex object is not String');
t.notOk(isString(new Date()), 'new Date() is not String');
t.notOk(isString(42), 'number is not String');
t.notOk(isString(Object(42)), 'number object is not String');
t.notOk(isString(NaN), 'NaN is not String');
t.notOk(isString(Infinity), 'Infinity is not String');
t.end();
});
test('@@toStringTag', { skip: !hasSymbols || !Symbol.toStringTag }, function (t) {
var fakeString = { valueOf: function () { return '42'; }, toString: function () { return '7'; } };
fakeString[Symbol.toStringTag] = function () { return 'String'; };
t.notOk(isString(fakeString), 'fake String with @@toStringTag "String" is not String');
t.end();
});
test('Strings', function (t) {
t.ok(isString('foo'), 'string primitive is String');
t.ok(isString(Object('foo')), 'string object is String');
t.end();
});
Version data entries
14 entries across 14 versions & 3 rubygems