| 1 | 'use strict';
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| 2 |
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| 3 | var test = require('tape');
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| 4 | var isBoolean = require('../');
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| 5 | var hasToStringTag = require('has-tostringtag/shams')();
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| 6 |
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| 7 | test('not Booleans', function (t) {
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| 8 | t.test('primitives', function (st) {
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| 9 | // @ts-expect-error
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| 10 | st.notOk(isBoolean(), 'undefined is not Boolean');
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| 11 | st.notOk(isBoolean(null), 'null is not Boolean');
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| 12 | st.notOk(isBoolean(0), '0 is not Boolean');
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| 13 | st.notOk(isBoolean(NaN), 'NaN is not Boolean');
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| 14 | st.notOk(isBoolean(Infinity), 'Infinity is not Boolean');
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| 15 | st.notOk(isBoolean('foo'), 'string is not Boolean');
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| 16 | st.end();
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| 17 | });
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| 18 |
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| 19 | t.test('objects', function (st) {
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| 20 | st.notOk(isBoolean(Object(42)), 'number object is not Boolean');
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| 21 | st.notOk(isBoolean([]), 'array is not Boolean');
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| 22 | st.notOk(isBoolean({}), 'object is not Boolean');
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| 23 | st.notOk(isBoolean(function () {}), 'function is not Boolean');
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| 24 | st.notOk(isBoolean(/a/g), 'regex literal is not Boolean');
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| 25 | st.notOk(isBoolean(new RegExp('a', 'g')), 'regex object is not Boolean');
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| 26 | st.notOk(isBoolean(new Date()), 'new Date() is not Boolean');
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| 27 | st.end();
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| 28 | });
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| 29 |
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| 30 | t.end();
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| 31 | });
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| 32 |
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| 33 | test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
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| 34 | /** @type {{ toString(): unknown; valueOf(): unknown; [Symbol.toStringTag]?: string; }} */
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| 35 | var fakeBoolean = {
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| 36 | toString: function () { return 'true'; },
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| 37 | valueOf: function () { return true; }
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| 38 | };
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| 39 | fakeBoolean[Symbol.toStringTag] = 'Boolean';
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| 40 | t.notOk(isBoolean(fakeBoolean), 'fake Boolean with @@toStringTag "Boolean" is not Boolean');
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| 41 | t.end();
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| 42 | });
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| 43 |
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| 44 | test('Booleans', function (t) {
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| 45 | t.ok(isBoolean(true), 'true is Boolean');
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| 46 | t.ok(isBoolean(false), 'false is Boolean');
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| 47 | t.ok(isBoolean(Object(true)), 'Object(true) is Boolean');
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| 48 | t.ok(isBoolean(Object(false)), 'Object(false) is Boolean');
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| 49 | t.end();
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| 50 | });
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