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
13 lines
362 B
JavaScript
13 lines
362 B
JavaScript
const {insertBefore} = require('./_30s.js');
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test('insertBefore is a Function', () => {
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expect(insertBefore).toBeInstanceOf(Function);
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});
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let e = document.createElement('div');
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e.setAttribute('id', 'test');
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test('Does not throw error if the element exists', () => {
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expect(() => {
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insertBefore(e, '<span>test</span>');
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}).not.toThrow(TypeError);
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});
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