Files
30-seconds-of-code/test/approximatelyEqual.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

18 lines
581 B
JavaScript

const {approximatelyEqual} = require('./_30s.js');
test('approximatelyEqual is a Function', () => {
expect(approximatelyEqual).toBeInstanceOf(Function);
});
test('Works for PI / 2', () => {
expect(approximatelyEqual(Math.PI / 2.0, 1.5708)).toBeTruthy();
});
test('Works for 0.1 + 0.2 === 0.3', () => {
expect(approximatelyEqual(0.1 + 0.2, 0.3)).toBeTruthy();
});
test('Works for exactly equal values', () => {
expect(approximatelyEqual(0.5, 0.5)).toBeTruthy();
});
test('Works for a custom epsilon', () => {
expect(approximatelyEqual(0.501, 0.5, 0.1)).toBeTruthy();
});