Files
30-seconds-of-code/test/byteSize.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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JavaScript

const { byteSize } = require('./_30s.js');
const Blob = class {
constructor(s) {
return {
size: Buffer.byteLength(s.toString())
};
}
};
test('byteSize is a Function', () => {
expect(byteSize).toBeInstanceOf(Function);
});
test('Works for a single letter', () => {
expect(byteSize('a')).toBe(1);
});
test('Works for a common string', () => {
expect(byteSize('Hello World')).toBe(11);
});
test('Works for emoji', () => {
expect(byteSize('😀')).toBe(4);
});