83a6a6ea32
* chore: make aware eslint that we use jest By setting up the jest environment, we no longer need to declare the 'test' global in the configuration. * chore: don't need to import expect, it's a jest environment global * chore: don't need to import expect when creating undefined test
16 lines
520 B
JavaScript
16 lines
520 B
JavaScript
const {elementContains} = require('./_30s.js');
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test('elementContains is a Function', () => {
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expect(elementContains).toBeInstanceOf(Function);
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});
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test('elementContains returns true', () => {
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let p = document.createElement('div');
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let c = p.appendChild(document.createElement('div'));
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expect(elementContains(p, c)).toBeTruthy();
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});
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test('elementContains returns false', () => {
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let p = document.createElement('div');
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let c = document.createElement('div');
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expect(elementContains(p, c)).toBeFalsy();
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});
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