20 lines
888 B
JavaScript
20 lines
888 B
JavaScript
const expect = require('expect');
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const isEmpty = require('./isEmpty.js');
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test('isEmpty is a Function', () => {
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expect(isEmpty).toBeInstanceOf(Function);
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});
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t.equal(isEmpty(new Map()), true, 'Returns true for empty Map');
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t.equal(isEmpty(new Set()), true, 'Returns true for empty Set');
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t.equal(isEmpty([]), true, 'Returns true for empty array');
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t.equal(isEmpty({}), true, 'Returns true for empty object');
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t.equal(isEmpty(''), true, 'Returns true for empty string');
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t.equal(isEmpty([1, 2]), false, 'Returns false for non-empty array');
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t.equal(isEmpty({ a: 1, b: 2 }), false, 'Returns false for non-empty object');
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t.equal(isEmpty('text'), false, 'Returns false for non-empty string');
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t.equal(isEmpty(123), true, 'Returns true - type is not considered a collection');
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t.equal(isEmpty(true), true, 'Returns true - type is not considered a collection');
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