14 lines
447 B
JavaScript
14 lines
447 B
JavaScript
const expect = require('expect');
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const isString = require('./isString.js');
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test('isString is a Function', () => {
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expect(isString).toBeInstanceOf(Function);
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});
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t.equal(isString('foo'), true, 'foo is a string');
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t.equal(isString('10'), true, '"10" is a string');
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t.equal(isString(''), true, 'Empty string is a string');
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t.equal(isString(10), false, '10 is not a string');
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t.equal(isString(true), false, 'true is not string');
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