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Diffstat (limited to 'library/moment/src/test/moment/diff.js')
| -rw-r--r-- | library/moment/src/test/moment/diff.js | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/library/moment/src/test/moment/diff.js b/library/moment/src/test/moment/diff.js new file mode 100644 index 000000000..ea863b1ea --- /dev/null +++ b/library/moment/src/test/moment/diff.js @@ -0,0 +1,234 @@ +import { module, test } from '../qunit'; +import moment from '../../moment'; + +function equal(assert, a, b, message) { + assert.ok(Math.abs(a - b) < 0.00000001, '(' + a + ' === ' + b + ') ' + message); +} + +function dstForYear(year) { + var start = moment([year]), + end = moment([year + 1]), + current = start.clone(), + last; + + while (current < end) { + last = current.clone(); + current.add(24, 'hour'); + if (last.utcOffset() !== current.utcOffset()) { + end = current.clone(); + current = last.clone(); + break; + } + } + + while (current < end) { + last = current.clone(); + current.add(1, 'hour'); + if (last.utcOffset() !== current.utcOffset()) { + return { + moment : last, + diff : -(current.utcOffset() - last.utcOffset()) / 60 + }; + } + } +} + +module('diff'); + +test('diff', function (assert) { + assert.equal(moment(1000).diff(0), 1000, '1 second - 0 = 1000'); + assert.equal(moment(1000).diff(500), 500, '1 second - 0.5 seconds = 500'); + assert.equal(moment(0).diff(1000), -1000, '0 - 1 second = -1000'); + assert.equal(moment(new Date(1000)).diff(1000), 0, '1 second - 1 second = 0'); + var oneHourDate = new Date(), + nowDate = new Date(+oneHourDate); + oneHourDate.setHours(oneHourDate.getHours() + 1); + assert.equal(moment(oneHourDate).diff(nowDate), 60 * 60 * 1000, '1 hour from now = 3600000'); +}); + +test('diff key after', function (assert) { + assert.equal(moment([2010]).diff([2011], 'years'), -1, 'year diff'); + assert.equal(moment([2010]).diff([2010, 2], 'months'), -2, 'month diff'); + assert.equal(moment([2010]).diff([2010, 0, 7], 'weeks'), 0, 'week diff'); + assert.equal(moment([2010]).diff([2010, 0, 8], 'weeks'), -1, 'week diff'); + assert.equal(moment([2010]).diff([2010, 0, 21], 'weeks'), -2, 'week diff'); + assert.equal(moment([2010]).diff([2010, 0, 22], 'weeks'), -3, 'week diff'); + assert.equal(moment([2010]).diff([2010, 0, 4], 'days'), -3, 'day diff'); + assert.equal(moment([2010]).diff([2010, 0, 1, 4], 'hours'), -4, 'hour diff'); + assert.equal(moment([2010]).diff([2010, 0, 1, 0, 5], 'minutes'), -5, 'minute diff'); + assert.equal(moment([2010]).diff([2010, 0, 1, 0, 0, 6], 'seconds'), -6, 'second diff'); +}); + +test('diff key before', function (assert) { + assert.equal(moment([2011]).diff([2010], 'years'), 1, 'year diff'); + assert.equal(moment([2010, 2]).diff([2010], 'months'), 2, 'month diff'); + assert.equal(moment([2010, 0, 4]).diff([2010], 'days'), 3, 'day diff'); + assert.equal(moment([2010, 0, 7]).diff([2010], 'weeks'), 0, 'week diff'); + assert.equal(moment([2010, 0, 8]).diff([2010], 'weeks'), 1, 'week diff'); + assert.equal(moment([2010, 0, 21]).diff([2010], 'weeks'), 2, 'week diff'); + assert.equal(moment([2010, 0, 22]).diff([2010], 'weeks'), 3, 'week diff'); + assert.equal(moment([2010, 0, 1, 4]).diff([2010], 'hours'), 4, 'hour diff'); + assert.equal(moment([2010, 0, 1, 0, 5]).diff([2010], 'minutes'), 5, 'minute diff'); + assert.equal(moment([2010, 0, 1, 0, 0, 6]).diff([2010], 'seconds'), 6, 'second diff'); +}); + +test('diff key before singular', function (assert) { + assert.equal(moment([2011]).diff([2010], 'year'), 1, 'year diff singular'); + assert.equal(moment([2010, 2]).diff([2010], 'month'), 2, 'month diff singular'); + assert.equal(moment([2010, 0, 4]).diff([2010], 'day'), 3, 'day diff singular'); + assert.equal(moment([2010, 0, 7]).diff([2010], 'week'), 0, 'week diff singular'); + assert.equal(moment([2010, 0, 8]).diff([2010], 'week'), 1, 'week diff singular'); + assert.equal(moment([2010, 0, 21]).diff([2010], 'week'), 2, 'week diff singular'); + assert.equal(moment([2010, 0, 22]).diff([2010], 'week'), 3, 'week diff singular'); + assert.equal(moment([2010, 0, 1, 4]).diff([2010], 'hour'), 4, 'hour diff singular'); + assert.equal(moment([2010, 0, 1, 0, 5]).diff([2010], 'minute'), 5, 'minute diff singular'); + assert.equal(moment([2010, 0, 1, 0, 0, 6]).diff([2010], 'second'), 6, 'second diff singular'); +}); + +test('diff key before abbreviated', function (assert) { + assert.equal(moment([2011]).diff([2010], 'y'), 1, 'year diff abbreviated'); + assert.equal(moment([2010, 2]).diff([2010], 'M'), 2, 'month diff abbreviated'); + assert.equal(moment([2010, 0, 4]).diff([2010], 'd'), 3, 'day diff abbreviated'); + assert.equal(moment([2010, 0, 7]).diff([2010], 'w'), 0, 'week diff abbreviated'); + assert.equal(moment([2010, 0, 8]).diff([2010], 'w'), 1, 'week diff abbreviated'); + assert.equal(moment([2010, 0, 21]).diff([2010], 'w'), 2, 'week diff abbreviated'); + assert.equal(moment([2010, 0, 22]).diff([2010], 'w'), 3, 'week diff abbreviated'); + assert.equal(moment([2010, 0, 1, 4]).diff([2010], 'h'), 4, 'hour diff abbreviated'); + assert.equal(moment([2010, 0, 1, 0, 5]).diff([2010], 'm'), 5, 'minute diff abbreviated'); + assert.equal(moment([2010, 0, 1, 0, 0, 6]).diff([2010], 's'), 6, 'second diff abbreviated'); +}); + +test('diff month', function (assert) { + assert.equal(moment([2011, 0, 31]).diff([2011, 2, 1], 'months'), -1, 'month diff'); +}); + +test('diff across DST', function (assert) { + var dst = dstForYear(2012), a, b, daysInMonth; + if (!dst) { + assert.equal(42, 42, 'at least one assertion'); + return; + } + + a = dst.moment; + b = a.clone().utc().add(12, 'hours').local(); + daysInMonth = (a.daysInMonth() + b.daysInMonth()) / 2; + assert.equal(b.diff(a, 'milliseconds', true), 12 * 60 * 60 * 1000, + 'ms diff across DST'); + assert.equal(b.diff(a, 'seconds', true), 12 * 60 * 60, + 'second diff across DST'); + assert.equal(b.diff(a, 'minutes', true), 12 * 60, + 'minute diff across DST'); + assert.equal(b.diff(a, 'hours', true), 12, + 'hour diff across DST'); + assert.equal(b.diff(a, 'days', true), (12 - dst.diff) / 24, + 'day diff across DST'); + equal(assert, b.diff(a, 'weeks', true), (12 - dst.diff) / 24 / 7, + 'week diff across DST'); + assert.ok(0.95 / (2 * 31) < b.diff(a, 'months', true), + 'month diff across DST, lower bound'); + assert.ok(b.diff(a, 'month', true) < 1.05 / (2 * 28), + 'month diff across DST, upper bound'); + assert.ok(0.95 / (2 * 31 * 12) < b.diff(a, 'years', true), + 'year diff across DST, lower bound'); + assert.ok(b.diff(a, 'year', true) < 1.05 / (2 * 28 * 12), + 'year diff across DST, upper bound'); + + a = dst.moment; + b = a.clone().utc().add(12 + dst.diff, 'hours').local(); + daysInMonth = (a.daysInMonth() + b.daysInMonth()) / 2; + + assert.equal(b.diff(a, 'milliseconds', true), + (12 + dst.diff) * 60 * 60 * 1000, + 'ms diff across DST'); + assert.equal(b.diff(a, 'seconds', true), (12 + dst.diff) * 60 * 60, + 'second diff across DST'); + assert.equal(b.diff(a, 'minutes', true), (12 + dst.diff) * 60, + 'minute diff across DST'); + assert.equal(b.diff(a, 'hours', true), (12 + dst.diff), + 'hour diff across DST'); + assert.equal(b.diff(a, 'days', true), 12 / 24, 'day diff across DST'); + equal(assert, b.diff(a, 'weeks', true), 12 / 24 / 7, + 'week diff across DST'); + assert.ok(0.95 / (2 * 31) < b.diff(a, 'months', true), + 'month diff across DST, lower bound'); + assert.ok(b.diff(a, 'month', true) < 1.05 / (2 * 28), + 'month diff across DST, upper bound'); + assert.ok(0.95 / (2 * 31 * 12) < b.diff(a, 'years', true), + 'year diff across DST, lower bound'); + assert.ok(b.diff(a, 'year', true) < 1.05 / (2 * 28 * 12), + 'year diff across DST, upper bound'); +}); + +test('diff overflow', function (assert) { + assert.equal(moment([2011]).diff([2010], 'months'), 12, 'month diff'); + assert.equal(moment([2010, 0, 2]).diff([2010], 'hours'), 24, 'hour diff'); + assert.equal(moment([2010, 0, 1, 2]).diff([2010], 'minutes'), 120, 'minute diff'); + assert.equal(moment([2010, 0, 1, 0, 4]).diff([2010], 'seconds'), 240, 'second diff'); +}); + +test('diff between utc and local', function (assert) { + if (moment([2012]).utcOffset() === moment([2011]).utcOffset()) { + // Russia's utc offset on 1st of Jan 2012 vs 2011 is different + assert.equal(moment([2012]).utc().diff([2011], 'years'), 1, 'year diff'); + } + assert.equal(moment([2010, 2, 2]).utc().diff([2010, 0, 2], 'months'), 2, 'month diff'); + assert.equal(moment([2010, 0, 4]).utc().diff([2010], 'days'), 3, 'day diff'); + assert.equal(moment([2010, 0, 22]).utc().diff([2010], 'weeks'), 3, 'week diff'); + assert.equal(moment([2010, 0, 1, 4]).utc().diff([2010], 'hours'), 4, 'hour diff'); + assert.equal(moment([2010, 0, 1, 0, 5]).utc().diff([2010], 'minutes'), 5, 'minute diff'); + assert.equal(moment([2010, 0, 1, 0, 0, 6]).utc().diff([2010], 'seconds'), 6, 'second diff'); +}); + +test('diff floored', function (assert) { + assert.equal(moment([2010, 0, 1, 23]).diff([2010], 'day'), 0, '23 hours = 0 days'); + assert.equal(moment([2010, 0, 1, 23, 59]).diff([2010], 'day'), 0, '23:59 hours = 0 days'); + assert.equal(moment([2010, 0, 1, 24]).diff([2010], 'day'), 1, '24 hours = 1 day'); + assert.equal(moment([2010, 0, 2]).diff([2011, 0, 1], 'year'), 0, 'year rounded down'); + assert.equal(moment([2011, 0, 1]).diff([2010, 0, 2], 'year'), 0, 'year rounded down'); + assert.equal(moment([2010, 0, 2]).diff([2011, 0, 2], 'year'), -1, 'year rounded down'); + assert.equal(moment([2011, 0, 2]).diff([2010, 0, 2], 'year'), 1, 'year rounded down'); +}); + +test('year diffs include dates', function (assert) { + assert.ok(moment([2012, 1, 19]).diff(moment([2002, 1, 20]), 'years', true) < 10, 'year diff should include date of month'); +}); + +test('month diffs', function (assert) { + // due to floating point math errors, these tests just need to be accurate within 0.00000001 + assert.equal(moment([2012, 0, 1]).diff([2012, 1, 1], 'months', true), -1, 'Jan 1 to Feb 1 should be 1 month'); + equal(assert, moment([2012, 0, 1]).diff([2012, 0, 1, 12], 'months', true), -0.5 / 31, 'Jan 1 to Jan 1 noon should be 0.5 / 31 months'); + assert.equal(moment([2012, 0, 15]).diff([2012, 1, 15], 'months', true), -1, 'Jan 15 to Feb 15 should be 1 month'); + assert.equal(moment([2012, 0, 28]).diff([2012, 1, 28], 'months', true), -1, 'Jan 28 to Feb 28 should be 1 month'); + assert.ok(moment([2012, 0, 31]).diff([2012, 1, 29], 'months', true), -1, 'Jan 31 to Feb 29 should be 1 month'); + assert.ok(-1 > moment([2012, 0, 31]).diff([2012, 2, 1], 'months', true), 'Jan 31 to Mar 1 should be more than 1 month'); + assert.ok(-30 / 28 < moment([2012, 0, 31]).diff([2012, 2, 1], 'months', true), 'Jan 31 to Mar 1 should be less than 1 month and 1 day'); + equal(assert, moment([2012, 0, 1]).diff([2012, 0, 31], 'months', true), -(30 / 31), 'Jan 1 to Jan 31 should be 30 / 31 months'); + assert.ok(0 < moment('2014-02-01').diff(moment('2014-01-31'), 'months', true), 'jan-31 to feb-1 diff is positive'); +}); + +test('exact month diffs', function (assert) { + // generate all pairs of months and compute month diff, with fixed day + // of month = 15. + + var m1, m2; + for (m1 = 0; m1 < 12; ++m1) { + for (m2 = m1; m2 < 12; ++m2) { + assert.equal(moment([2013, m2, 15]).diff(moment([2013, m1, 15]), 'months', true), m2 - m1, + 'month diff from 2013-' + m1 + '-15 to 2013-' + m2 + '-15'); + } + } +}); + +test('year diffs', function (assert) { + // due to floating point math errors, these tests just need to be accurate within 0.00000001 + equal(assert, moment([2012, 0, 1]).diff([2013, 0, 1], 'years', true), -1, 'Jan 1 2012 to Jan 1 2013 should be 1 year'); + equal(assert, moment([2012, 1, 28]).diff([2013, 1, 28], 'years', true), -1, 'Feb 28 2012 to Feb 28 2013 should be 1 year'); + equal(assert, moment([2012, 2, 1]).diff([2013, 2, 1], 'years', true), -1, 'Mar 1 2012 to Mar 1 2013 should be 1 year'); + equal(assert, moment([2012, 11, 1]).diff([2013, 11, 1], 'years', true), -1, 'Dec 1 2012 to Dec 1 2013 should be 1 year'); + equal(assert, moment([2012, 11, 31]).diff([2013, 11, 31], 'years', true), -1, 'Dec 31 2012 to Dec 31 2013 should be 1 year'); + equal(assert, moment([2012, 0, 1]).diff([2013, 6, 1], 'years', true), -1.5, 'Jan 1 2012 to Jul 1 2013 should be 1.5 years'); + equal(assert, moment([2012, 0, 31]).diff([2013, 6, 31], 'years', true), -1.5, 'Jan 31 2012 to Jul 31 2013 should be 1.5 years'); + equal(assert, moment([2012, 0, 1]).diff([2013, 0, 1, 12], 'years', true), -1 - (0.5 / 31) / 12, 'Jan 1 2012 to Jan 1 2013 noon should be 1+(0.5 / 31) / 12 years'); + equal(assert, moment([2012, 0, 1]).diff([2013, 6, 1, 12], 'years', true), -1.5 - (0.5 / 31) / 12, 'Jan 1 2012 to Jul 1 2013 noon should be 1.5+(0.5 / 31) / 12 years'); + equal(assert, moment([2012, 1, 29]).diff([2013, 1, 28], 'years', true), -1, 'Feb 29 2012 to Feb 28 2013 should be 1-(1 / 28.5) / 12 years'); +}); |