15 lines
568 B
JavaScript
15 lines
568 B
JavaScript
const expect = require('expect');
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const {elementIsVisibleInViewport} = require('./_30s.js');
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test('elementIsVisibleInViewport is a Function', () => {
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expect(elementIsVisibleInViewport).toBeInstanceOf(Function);
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});
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test('elementIsVisibleInViewport returns a boolean', () => {
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let el = document.createElement('div');
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expect(typeof elementIsVisibleInViewport(el)).toBe('boolean');
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});
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test('elementIsVisibleInViewport returns a boolean', () => {
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let el = document.createElement('div');
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expect(typeof elementIsVisibleInViewport(el, true)).toBe('boolean');
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});
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