133 lines
3.8 KiB
TypeScript
133 lines
3.8 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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getCheckedTimestampFromLong,
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getCheckedTimestampOrUndefinedFromLong,
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} from '../../util/timestampLongUtils';
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import { MAX_SAFE_DATE } from '../../util/timestamp';
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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 MAX_SAFE_DATE when passed Infinity', () => {
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assert.strictEqual(
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getSafeLongFromTimestamp(Infinity).toNumber(),
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MAX_SAFE_DATE
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);
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});
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it('returns Long.MAX_VALUE when passed Infinity and overriden', () => {
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assert(
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getSafeLongFromTimestamp(Infinity, Long.MAX_VALUE).equals(Long.MAX_VALUE)
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);
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});
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it("returns MAX_SAFE_DATE when passed very large numbers, outside of JavaScript's safely representable range", () => {
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assert.strictEqual(
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getSafeLongFromTimestamp(Number.MAX_VALUE).toNumber(),
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MAX_SAFE_DATE
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);
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});
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});
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describe('getTimestampFromLong', () => {
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it('returns zero when passed negative Long', () => {
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assert.equal(getTimestampFromLong(Long.fromNumber(-1)), 0);
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});
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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 MAX_SAFE_DATE when passed Long.MAX_VALUE', () => {
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assert.equal(getTimestampFromLong(Long.MAX_VALUE), MAX_SAFE_DATE);
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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('getCheckedTimestampFromLong', () => {
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it('throws on absent Long', () => {
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assert.throws(() => getCheckedTimestampFromLong(null));
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});
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it('throws on negative Long', () => {
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assert.throws(() => getCheckedTimestampFromLong(Long.fromNumber(-1)));
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});
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it('throws on Long.MAX_VALUE', () => {
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assert.throws(() => getCheckedTimestampFromLong(Long.MAX_VALUE));
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});
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it('does not throw otherwise', () => {
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assert.equal(getCheckedTimestampFromLong(Long.fromNumber(16)), 16);
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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 MAX_SAFE_DATE when passed Long.MAX_VALUE', () => {
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assert.equal(
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getTimestampOrUndefinedFromLong(Long.MAX_VALUE),
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MAX_SAFE_DATE
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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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describe('getCheckedTimestampOrUndefinedFromLong', () => {
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it('throws on negative Long', () => {
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assert.throws(() =>
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getCheckedTimestampOrUndefinedFromLong(Long.fromNumber(-1))
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);
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});
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it('returns undefined on absent Long', () => {
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assert.equal(getCheckedTimestampOrUndefinedFromLong(null), undefined);
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});
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it('returns undefined on zero Long', () => {
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assert.equal(getCheckedTimestampOrUndefinedFromLong(Long.ZERO), undefined);
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});
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it('returns a normal number', () => {
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assert.equal(
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getCheckedTimestampOrUndefinedFromLong(Long.fromNumber(16)),
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16
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);
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});
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});
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