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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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