12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273 |
- 'use strict';
- var test = require('tape');
- var hasToStringTag = require('has-tostringtag/shams')();
- var inspect = require('object-inspect');
- var isBoolean = require('../');
- test('not Booleans', function (t) {
- t.test('primitives', function (st) {
- // @ts-expect-error
- st.notOk(isBoolean(), 'undefined is not Boolean');
- st.notOk(isBoolean(null), 'null is not Boolean');
- st.notOk(isBoolean(0), '0 is not Boolean');
- st.notOk(isBoolean(NaN), 'NaN is not Boolean');
- st.notOk(isBoolean(Infinity), 'Infinity is not Boolean');
- st.notOk(isBoolean('foo'), 'string is not Boolean');
- st.end();
- });
- t.test('objects', function (st) {
- st.notOk(isBoolean(Object(42)), 'number object is not Boolean');
- st.notOk(isBoolean([]), 'array is not Boolean');
- st.notOk(isBoolean({}), 'object is not Boolean');
- st.notOk(isBoolean(function () {}), 'function is not Boolean');
- st.notOk(isBoolean(/a/g), 'regex literal is not Boolean');
- st.notOk(isBoolean(new RegExp('a', 'g')), 'regex object is not Boolean');
- st.notOk(isBoolean(new Date()), 'new Date() is not Boolean');
- st.end();
- });
- t.end();
- });
- test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
- /** @type {{ toString(): unknown; valueOf(): unknown; [Symbol.toStringTag]?: string; }} */
- var fakeBoolean = {
- toString: function () { return 'true'; },
- valueOf: function () { return true; }
- };
- fakeBoolean[Symbol.toStringTag] = 'Boolean';
- t.notOk(isBoolean(fakeBoolean), 'fake Boolean with @@toStringTag "Boolean" is not Boolean');
- t.end();
- });
- test('Booleans', function (t) {
- t.ok(isBoolean(true), 'true is Boolean');
- t.ok(isBoolean(false), 'false is Boolean');
- t.ok(isBoolean(Object(true)), 'Object(true) is Boolean');
- t.ok(isBoolean(Object(false)), 'Object(false) is Boolean');
- t.end();
- });
- test('Proxy', { skip: typeof Proxy !== 'function' || !hasToStringTag }, function (t) {
- /** @type {Record<PropertyKey, unknown>} */
- var target = {};
- target[Symbol.toStringTag] = 'Boolean';
- var fake = new Proxy(target, { has: function () { return false; } });
- t.equal(
- isBoolean(target),
- false,
- inspect(target) + ' is not a Boolean'
- );
- t.equal(
- isBoolean(fake),
- false,
- inspect(fake) + ' is not a Boolean'
- );
- t.end();
- });
|