16 lines
453 B
JavaScript
16 lines
453 B
JavaScript
const expect = require('expect');
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const {isLowerCase} = require('./_30s.js');
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test('isLowerCase is a Function', () => {
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expect(isLowerCase).toBeInstanceOf(Function);
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});
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test('passed string is a lowercase', () => {
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expect(isLowerCase('abc')).toBeTruthy();
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});
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test('passed string is a lowercase', () => {
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expect(isLowerCase('a3@$')).toBeTruthy();
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});
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test('passed value is not a lowercase', () => {
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expect(isLowerCase('A3@$')).toBeFalsy();
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});
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