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48 lines
1.6 KiB
48 lines
1.6 KiB
'use strict';
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var test = require('tape');
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var isBoolean = require('../');
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var hasToStringTag = require('has-tostringtag/shams')();
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test('not Booleans', function (t) {
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t.test('primitives', function (st) {
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st.notOk(isBoolean(), 'undefined is not Boolean');
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st.notOk(isBoolean(null), 'null is not Boolean');
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st.notOk(isBoolean(0), '0 is not Boolean');
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st.notOk(isBoolean(NaN), 'NaN is not Boolean');
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st.notOk(isBoolean(Infinity), 'Infinity is not Boolean');
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st.notOk(isBoolean('foo'), 'string is not Boolean');
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st.end();
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});
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t.test('objects', function (st) {
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st.notOk(isBoolean(Object(42)), 'number object is not Boolean');
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st.notOk(isBoolean([]), 'array is not Boolean');
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st.notOk(isBoolean({}), 'object is not Boolean');
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st.notOk(isBoolean(function () {}), 'function is not Boolean');
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st.notOk(isBoolean(/a/g), 'regex literal is not Boolean');
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st.notOk(isBoolean(new RegExp('a', 'g')), 'regex object is not Boolean');
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st.notOk(isBoolean(new Date()), 'new Date() is not Boolean');
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st.end();
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});
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t.end();
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});
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test('@@toStringTag', { skip: !hasToStringTag }, function (t) {
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var fakeBoolean = {
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toString: function () { return 'true'; },
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valueOf: function () { return true; }
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};
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fakeBoolean[Symbol.toStringTag] = 'Boolean';
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t.notOk(isBoolean(fakeBoolean), 'fake Boolean with @@toStringTag "Boolean" is not Boolean');
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t.end();
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});
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test('Booleans', function (t) {
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t.ok(isBoolean(true), 'true is Boolean');
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t.ok(isBoolean(false), 'false is Boolean');
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t.ok(isBoolean(Object(true)), 'Object(true) is Boolean');
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t.ok(isBoolean(Object(false)), 'Object(false) is Boolean');
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t.end();
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});
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