18 lines
463 B
JavaScript
18 lines
463 B
JavaScript
const expect = require('expect');
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const isLowerCase = require('./isLowerCase.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')).toBe(true)
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});
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test('passed string is a lowercase', () => {
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expect(isLowerCase('a3@$')).toBe(true)
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});
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test('passed value is not a lowercase', () => {
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expect(isLowerCase('A3@$')).toBe(false)
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});
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