Files
30-seconds-of-code/test/counter.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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390 B
JavaScript

const {counter} = require('./_30s.js');
test('counter is a Function', () => {
expect(counter).toBeInstanceOf(Function);
});
test('counter does not throw errors', () => {
expect(() => {
document.body.appendChild(document.createElement('div'));
counter('div', 1, 1000, 5, 2000);
counter('div', 1000, 1, 5, 2000);
counter('div', 1, 1000);
}).not.toThrow(TypeError);
});