73 lines
2.2 KiB
TypeScript
73 lines
2.2 KiB
TypeScript
// Copyright 2021 Signal Messenger, LLC
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// SPDX-License-Identifier: AGPL-3.0-only
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import { assert } from 'chai';
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import Long from 'long';
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import {
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getSafeLongFromTimestamp,
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getTimestampFromLong,
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getTimestampOrUndefinedFromLong,
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} from '../../util/timestampLongUtils';
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describe('getSafeLongFromTimestamp', () => {
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it('returns zero when passed undefined', () => {
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assert(getSafeLongFromTimestamp(undefined).isZero());
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});
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it('returns the number as a Long when passed a "normal" number', () => {
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assert(getSafeLongFromTimestamp(0).isZero());
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assert.strictEqual(getSafeLongFromTimestamp(123).toString(), '123');
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assert.strictEqual(getSafeLongFromTimestamp(-456).toString(), '-456');
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});
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it('returns Long.MAX_VALUE when passed Infinity', () => {
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assert(getSafeLongFromTimestamp(Infinity).equals(Long.MAX_VALUE));
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});
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it("returns Long.MAX_VALUE when passed very large numbers, outside of JavaScript's safely representable range", () => {
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assert.equal(getSafeLongFromTimestamp(Number.MAX_VALUE), Long.MAX_VALUE);
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});
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});
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describe('getTimestampFromLong', () => {
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it('returns zero when passed 0 Long', () => {
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assert.equal(getTimestampFromLong(Long.fromNumber(0)), 0);
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});
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it('returns Number.MAX_SAFE_INTEGER when passed Long.MAX_VALUE', () => {
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assert.equal(getTimestampFromLong(Long.MAX_VALUE), Number.MAX_SAFE_INTEGER);
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});
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it('returns a normal number', () => {
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assert.equal(getTimestampFromLong(Long.fromNumber(16)), 16);
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});
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it('returns 0 for null value', () => {
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assert.equal(getTimestampFromLong(null), 0);
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});
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});
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describe('getTimestampOrUndefinedFromLong', () => {
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it('returns undefined when passed 0 Long', () => {
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assert.equal(
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getTimestampOrUndefinedFromLong(Long.fromNumber(0)),
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undefined
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);
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});
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it('returns Number.MAX_SAFE_INTEGER when passed Long.MAX_VALUE', () => {
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assert.equal(
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getTimestampOrUndefinedFromLong(Long.MAX_VALUE),
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Number.MAX_SAFE_INTEGER
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);
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});
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it('returns a normal number', () => {
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assert.equal(getTimestampOrUndefinedFromLong(Long.fromNumber(16)), 16);
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});
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it('returns undefined for null value', () => {
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assert.equal(getTimestampOrUndefinedFromLong(null), undefined);
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});
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});
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