Files
30-seconds-of-code/test/elementIsVisibleInViewport.test.js
Christian C. Salvadó 83a6a6ea32 [ENHANCEMENT] Properly configure eslint to work with jest (#988)
* 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
2019-06-18 08:34:45 +03:00

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534 B
JavaScript

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