// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import {assertEquals} from 'chrome://webui-test/chromeos/chai_assert.js';
import {bytesToString, getFileErrorString, str} from './translations.js';
/**
* Tests the formatting of bytesToString.
*/
export function testBytesToString() {
const KB = 2 ** 10;
const MB = 2 ** 20;
const GB = 2 ** 30;
const TB = 2 ** 40;
const PB = 2 ** 50;
// Up to 1KB is displayed as 'bytes'.
assertEquals(bytesToString(0), '0 bytes');
assertEquals(bytesToString(10), '10 bytes');
assertEquals(bytesToString(KB - 1), '1,023 bytes');
assertEquals(bytesToString(KB), '1 KB');
// Up to 1MB is displayed as a number of KBs with no precision digit.
assertEquals(bytesToString(2 * KB), '2 KB');
assertEquals(bytesToString(2 * KB + 1), '3 KB');
assertEquals(bytesToString(MB - KB), '1,023 KB');
assertEquals(bytesToString(MB - KB + 1), '1,024 KB');
assertEquals(bytesToString(MB - 1), '1,024 KB');
assertEquals(bytesToString(MB), '1 MB');
// Up to 1GB is displayed as a number of MBs with <= 1 precision digit.
assertEquals(bytesToString(2.55 * MB - 1), '2.5 MB');
assertEquals(bytesToString(2.55 * MB), '2.6 MB');
assertEquals(bytesToString(GB - 0.05 * MB - 1), '1,023.9 MB');
assertEquals(bytesToString(GB - 0.05 * MB), '1,024 MB');
assertEquals(bytesToString(GB - 1), '1,024 MB');
assertEquals(bytesToString(GB), '1 GB');
// Up to 1TB is displayed as a number of GBs with <= 1 precision digit.
assertEquals(bytesToString(2.55 * GB - 1), '2.5 GB');
assertEquals(bytesToString(2.55 * GB), '2.6 GB');
assertEquals(bytesToString(TB - 0.05 * GB - 1), '1,023.9 GB');
assertEquals(bytesToString(TB - 0.05 * GB), '1,024 GB');
assertEquals(bytesToString(TB - 1), '1,024 GB');
assertEquals(bytesToString(TB), '1 TB');
// Up to 1PB is displayed as a number of TBs with <= 1 precision digit.
assertEquals(bytesToString(2.55 * TB - 1), '2.5 TB');
assertEquals(bytesToString(2.55 * TB), '2.6 TB');
assertEquals(bytesToString(PB - 0.05 * TB - 1), '1,023.9 TB');
assertEquals(bytesToString(PB - 0.05 * TB), '1,024 TB');
assertEquals(bytesToString(PB - 1), '1,024 TB');
assertEquals(bytesToString(PB), '1 PB');
// Above 1PB is displayed as a number of PBs with <= 1 precision digit.
assertEquals(bytesToString(2.55 * PB - 1), '2.5 PB');
assertEquals(bytesToString(2.55 * PB), '2.6 PB');
}
/**
* Tests the formatting of bytesToString with added precision digits.
*
* Useful information regarding the below assertions:
* 647 bytes = 0.6318359375 KB.
* bytesToString() internally uses Number.toLocaleString() which outputs at most
* 3 precision digits in en-US.
*/
export function testBytesToStringWithAddedPrecision() {
const KB = 2 ** 10;
const MB = 2 ** 20;
const GB = 2 ** 30;
const TB = 2 ** 40;
const PB = 2 ** 50;
// Up to 1KB formatting unchanged.
assertEquals(bytesToString(0, 1), '0 bytes');
assertEquals(bytesToString(10, 2), '10 bytes');
assertEquals(bytesToString(KB - 1, 3), '1,023 bytes');
// Exact values, no trailing 0s regardless of precision.
assertEquals(bytesToString(2 * KB, 1), '2 KB');
assertEquals(bytesToString(2 * MB, 2), '2 MB');
assertEquals(bytesToString(2 * GB, 3), '2 GB');
assertEquals(bytesToString(2 * TB, 4), '2 TB');
assertEquals(bytesToString(2 * PB, 5), '2 PB');
// up to MB, initially no precision digits.
assertEquals(bytesToString(2 * KB + 647), '3 KB');
assertEquals(bytesToString(2 * KB + 647, 0), '3 KB');
assertEquals(bytesToString(2 * KB + 647, 1), '2.6 KB');
assertEquals(bytesToString(2 * KB + 647, 2), '2.63 KB');
assertEquals(bytesToString(2 * KB + 647, 3), '2.632 KB');
assertEquals(bytesToString(2 * KB + 647, 4), '2.632 KB');
assertEquals(bytesToString(200 * KB + 647, 1), '200.6 KB');
// From 1MB, up to 1 precision digit + added precision.
assertEquals(bytesToString(2 * MB + 647 * KB), '2.6 MB');
assertEquals(bytesToString(2 * MB + 647 * KB, 0), '2.6 MB');
assertEquals(bytesToString(2 * MB + 647 * KB, 1), '2.63 MB');
assertEquals(bytesToString(2 * MB + 647 * KB, 2), '2.632 MB');
assertEquals(bytesToString(2 * MB + 647 * KB, 3), '2.632 MB');
assertEquals(bytesToString(200 * MB + 647 * KB, 1), '200.63 MB');
// Up to 1TB.
assertEquals(bytesToString(2 * GB + 647 * MB), '2.6 GB');
assertEquals(bytesToString(2 * GB + 647 * MB, 0), '2.6 GB');
assertEquals(bytesToString(2 * GB + 647 * MB, 1), '2.63 GB');
assertEquals(bytesToString(2 * GB + 647 * MB, 2), '2.632 GB');
assertEquals(bytesToString(2 * GB + 647 * MB, 3), '2.632 GB');
assertEquals(bytesToString(200 * GB + 647 * MB, 1), '200.63 GB');
// Up to 1PB.
assertEquals(bytesToString(2 * TB + 647 * GB), '2.6 TB');
assertEquals(bytesToString(2 * TB + 647 * GB, 0), '2.6 TB');
assertEquals(bytesToString(2 * TB + 647 * GB, 1), '2.63 TB');
assertEquals(bytesToString(2 * TB + 647 * GB, 2), '2.632 TB');
assertEquals(bytesToString(2 * TB + 647 * GB, 3), '2.632 TB');
assertEquals(bytesToString(200 * TB + 647 * GB, 1), '200.63 TB');
// Above 1PB.
assertEquals(bytesToString(2 * PB + 647 * TB), '2.6 PB');
assertEquals(bytesToString(2 * PB + 647 * TB, 0), '2.6 PB');
assertEquals(bytesToString(2 * PB + 647 * TB, 1), '2.63 PB');
assertEquals(bytesToString(2 * PB + 647 * TB, 2), '2.632 PB');
assertEquals(bytesToString(2 * PB + 647 * TB, 3), '2.632 PB');
assertEquals(bytesToString(200 * PB + 647 * TB, 1), '200.63 PB');
}
/**
* Tests the getFileErrorString helper for undefined, null, or empty
* string error name input, which should output an i18n FILE_ERROR_GENERIC
* error name.
*
* Also tests pre-defined error names ('NotFoundError' and 'PathExistsError'
* here), which should output their associated i18n error names.
*/
export function testGetFileErrorString() {
let i18nErrorName;
i18nErrorName = getFileErrorString(undefined);
assertEquals(i18nErrorName, str('FILE_ERROR_GENERIC'));
i18nErrorName = getFileErrorString(null);
assertEquals(i18nErrorName, str('FILE_ERROR_GENERIC'));
i18nErrorName = getFileErrorString('');
assertEquals(i18nErrorName, str('FILE_ERROR_GENERIC'));
i18nErrorName = getFileErrorString('NotFoundError');
assertEquals(i18nErrorName, str('FILE_ERROR_NOT_FOUND'));
i18nErrorName = getFileErrorString('PathExistsError');
assertEquals(i18nErrorName, str('FILE_ERROR_PATH_EXISTS'));
}
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