Test migration to jest by hand

Apparently using regular expressions is way easier.
This commit is contained in:
Angelos Chalaris
2018-06-18 15:15:56 +03:00
parent 5df7098fac
commit a78f5db260
894 changed files with 5917 additions and 3607 deletions

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const prettyBytes = (num, precision = 3, addSpace = true) => {
const UNITS = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
if (Math.abs(num) < 1) return num + (addSpace ? ' ' : '') + UNITS[0];
const exponent = Math.min(Math.floor(Math.log10(num < 0 ? -num : num) / 3), UNITS.length - 1);
const n = Number(((num < 0 ? -num : num) / 1000 ** exponent).toPrecision(precision));
return (num < 0 ? '-' : '') + n + (addSpace ? ' ' : '') + UNITS[exponent];
};
module.exports = prettyBytes;

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const expect = require('expect');
const prettyBytes = require('./prettyBytes.js');
test('prettyBytes is a Function', () => {
expect(prettyBytes).toBeInstanceOf(Function);
});
t.equal(prettyBytes(1000), '1 KB', "Converts a number in bytes to a human-readable string.");
t.equal(prettyBytes(-27145424323.5821, 5), '-27.145 GB', "Converts a number in bytes to a human-readable string.");
t.equal(prettyBytes(123456789, 3, false), '123MB', "Converts a number in bytes to a human-readable string.");