blob: 5f42a6fff9fa6759e944ba86f6b0baa24638c501 [file] [log] [blame]
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import {assert} from 'chai';
import {FORMATTER, MS_PER_MONTH, standardTime,
relativeTime} from './chops-timestamp-helpers.js';
import sinon from 'sinon';
// The formatted date strings differ based on time zone and browser, so we can't
// use static strings for testing. We can't stub out the format method because
// it's native code and can't be modified. So just use the FORMATTER object.
let clock;
describe('chops-timestamp-helpers', () => {
beforeEach(() => {
// Set clock to the Epoch.
clock = sinon.useFakeTimers({
now: new Date(0),
shouldAdvanceTime: false,
});
});
afterEach(() => {
clock.restore();
});
describe('standardTime', () => {
it('shows relative timestamp when less than a month ago', () => {
const date = new Date();
assert.equal(standardTime(date), `${FORMATTER.format(date)} (just now)`);
});
it('no relative time when more than a month in the future', () => {
const date = new Date(1548808276 * 1000);
assert.equal(standardTime(date), 'Tue, Jan 29, 2019, 4:31 PM PST');
});
it('no relative time when more than a month in the past', () => {
// Jan 29, 2019, 4:31 PM PST
const now = 1548808276 * 1000;
clock.tick(now);
const date = new Date(now - MS_PER_MONTH);
assert.equal(standardTime(date), 'Sun, Dec 30, 2018, 4:31 PM PST');
});
});
it('relativeTime future', () => {
assert.equal(relativeTime(new Date()), `just now`);
assert.equal(relativeTime(new Date(59 * 1000)), `just now`);
assert.equal(relativeTime(new Date(60 * 1000)), `a minute from now`);
assert.equal(relativeTime(new Date(2 * 60 * 1000)),
`2 minutes from now`);
assert.equal(relativeTime(new Date(59 * 60 * 1000)),
`59 minutes from now`);
assert.equal(relativeTime(new Date(60 * 60 * 1000)), `an hour from now`);
assert.equal(relativeTime(new Date(2 * 60 * 60 * 1000)),
`2 hours from now`);
assert.equal(relativeTime(new Date(23 * 60 * 60 * 1000)),
`23 hours from now`);
assert.equal(relativeTime(new Date(24 * 60 * 60 * 1000)),
`a day from now`);
assert.equal(relativeTime(new Date(2 * 24 * 60 * 60 * 1000)),
`2 days from now`);
assert.equal(relativeTime(new Date(29 * 24 * 60 * 60 * 1000)),
`29 days from now`);
assert.equal(relativeTime(new Date(30 * 24 * 60 * 60 * 1000)),
'Jan 30, 1970');
});
it('relativeTime past', () => {
const baseTime = 234234 * 1000;
clock.tick(baseTime);
assert.equal(relativeTime(new Date()), `just now`);
assert.equal(relativeTime(new Date(baseTime - 59 * 1000)),
`just now`);
assert.equal(relativeTime(new Date(baseTime - 60 * 1000)),
`a minute ago`);
assert.equal(relativeTime(new Date(baseTime - 2 * 60 * 1000)),
`2 minutes ago`);
assert.equal(relativeTime(new Date(baseTime - 59 * 60 * 1000)),
`59 minutes ago`);
assert.equal(relativeTime(new Date(baseTime - 60 * 60 * 1000)),
`an hour ago`);
assert.equal(relativeTime(new Date(baseTime - 2 * 60 * 60 * 1000)),
`2 hours ago`);
assert.equal(relativeTime(new Date(baseTime - 23 * 60 * 60 * 1000)),
`23 hours ago`);
assert.equal(relativeTime(new Date(
baseTime - 24 * 60 * 60 * 1000)), `a day ago`);
assert.equal(relativeTime(new Date(
baseTime - 2 * 24 * 60 * 60 * 1000)), `2 days ago`);
assert.equal(relativeTime(new Date(
baseTime - 29 * 24 * 60 * 60 * 1000)), `29 days ago`);
assert.equal(relativeTime(new Date(
baseTime - 30 * 24 * 60 * 60 * 1000)), 'Dec 4, 1969');
});
});