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// SERVER-7695: Add $isoWeek, $isoWeekYear, and $isoDayOfWeek aggregation expressions.
(function() {
"use strict";
var coll = db.server7695;
var testOpCount = 0;
coll.drop();
// Seed collection so that the pipeline will execute.
assert.writeOK(coll.insert({}));
// Helper for testing that op returns expResult.
function testOp(op, value, expResult) {
testOpCount++;
var pipeline = [{$project: {_id: 0, result: {}}}];
pipeline[0].$project.result[op] = value;
var msg = "Exptected {" + op + ": " + value + "} to equal: " + expResult;
var res = coll.runCommand('aggregate', {pipeline: pipeline});
// in the case of $dateToString the date is on property date
var date = value.date || value;
if (date.valueOf() < 0 && _isWindows() && res.code === 16422) {
// some versions of windows (but not all) fail with dates before 1970
print("skipping test of " + date.tojson() +
" because system doesn't support old dates");
return;
}
if (date.valueOf() / 1000 < -2 * 1024 * 1024 * 1024 && res.code == 16421) {
// we correctly detected that we are outside of the range of a 32-bit time_t
print("skipping test of " + date.tojson() + " because it is outside of time_t range");
return;
}
assert.eq(res.result[0].result, expResult, pipeline);
}
// While development, there was a bug which caused an error with $dateToString if the order of
// %V and %G changed, so I added this test to prevent regression.
testOp('$dateToString', {date: new Date("1900-12-31T23:59:59Z"), format: "%V-%G"}, "01-1901");
// This was failing, but it shouldn't as it is the same as above, only rotated.
testOp('$dateToString', {date: new Date("1900-12-31T23:59:59Z"), format: "%G-%V"}, "1901-01");
// 1900 is special because it's devisible by 4 and by 100 but not 400 so it's not a leap year.
// 2000 is special, because it's devisible by 4, 100, 400 and so it is a leap year.
var years = {
common: [
1900, // Starting and ending on Monday (special).
2002, // Starting and ending on Tuesday.
2014, // Starting and ending on Wednesday.
2015, // Starting and ending on Thursday.
2010, // Starting and ending on Friday.
2011, // Starting and ending on Saturday.
2006, // Starting and ending on Sunday.
],
leap: [
1996, // Starting on Monday, ending on Tuesday.
2008, // Starting on Tuesday, ending on Wednesday.
1992, // Starting on Wednesday, ending on Thursday.
2004, // Starting on Thursday, ending on Friday.
2016, // Starting on Friday, ending on Saturday.
2000, // Starting on Saturday, ending on Sunday (special).
2012, // Starting on Sunday, ending on Monday.
],
commonAfterLeap: [
2001, // Starting and ending on Monday.
2013, // Starting and ending on Tuesday.
1997, // Starting and ending on Wednesday.
2009, // Starting and ending on Thursday.
1993, // Starting and ending on Friday.
2005, // Starting and ending on Saturday.
2017, // Starting and ending on Sunday.
],
};
var MONDAY = 1;
var TUESDAY = 2;
var WEDNESDAY = 3;
var THURSDAY = 4;
var FRIDAY = 5;
var SATURDAY = 6;
var SUNDAY = 7;
// Make numbers at least with two digits with 0 in front if shorter than two digits
function padded(val) {
return ("00" + val).slice(-2);
}
function getNewYear(year) {
return new Date("" + year + "-01-01T00:00:00Z");
}
function getEndOfFirstWeekInYear(year, day) {
return new Date("" + year + "-01-" + (padded(7 - day + 1)) + "T23:59:59Z");
}
function getStartOfSecondWeekInYear(year, day) {
return new Date("" + year + "-01-" + (padded(7 - day + 2)) + "T00:00:00Z");
}
function getBirthday(year) {
return new Date("" + year + "-07-05T21:36:00+02:00");
}
function getEndOfSecondToLastWeekInYear(year, day, type) {
if (type === 'leap') {
return new Date("" + year + "-12-" + padded(31 - day - 1) + "T23:59:59Z");
} else {
return new Date("" + year + "-12-" + padded(31 - day) + "T23:59:59Z");
}
}
function getStartOfLastWeekInYear(year, day, type) {
if (type === 'leap') {
return new Date("" + year + "-12-" + padded(31 - day) + "T00:00:00Z");
} else {
return new Date("" + year + "-12-" + padded(31 - day + 1) + "T00:00:00Z");
}
}
function getNewYearsEve(year) {
return new Date("" + year + "-12-31T23:59:59Z");
}
function shiftWeekday(dayOfWeek, daysToAdd) {
return ((dayOfWeek - 1 + daysToAdd) % 7) + 1;
}
['common', 'leap', 'commonAfterLeap'].forEach(function(type) {
years[type].forEach(function(year, day) {
// forEach starts indexing at zero but weekdays start with Monday on 1 so we add +1.
var day = day + 1;
var newYear = getNewYear(year);
var endOfFirstWeekInYear = getEndOfFirstWeekInYear(year, day);
var startOfSecondWeekInYear = getStartOfSecondWeekInYear(year, day);
var birthday = getBirthday(year);
var endOfSecondToLastWeekInYear = getEndOfSecondToLastWeekInYear(year, day, type);
var startOfLastWeekInYear = getStartOfLastWeekInYear(year, day, type);
var newYearsEve = getNewYearsEve(year);
testOp('$isoDayOfWeek', newYear, day);
testOp('$isoDayOfWeek', endOfFirstWeekInYear, SUNDAY);
testOp('$isoDayOfWeek', startOfSecondWeekInYear, MONDAY);
testOp('$isoDayOfWeek', endOfSecondToLastWeekInYear, SUNDAY);
testOp('$isoDayOfWeek', startOfLastWeekInYear, MONDAY);
if (type === 'leap') {
testOp('$isoDayOfWeek', newYearsEve, shiftWeekday(day, 1));
} else {
testOp('$isoDayOfWeek', newYearsEve, day);
}
if (type === 'leap') {
testOp('$isoDayOfWeek', birthday, shiftWeekday(day, 4));
} else {
testOp('$isoDayOfWeek', birthday, shiftWeekday(day, 3));
}
testOp('$isoWeekYear', birthday, year);
// In leap years staring on Thursday, the birthday is in week 28, every year else it is
// in week 27.
if (type === 'leap' && day === THURSDAY) {
testOp('$isoWeek', birthday, 28);
} else {
testOp('$isoWeek', birthday, 27);
}
if (day <= THURSDAY) {
// A year starting between Monday and Thursday will always start in week 1.
testOp('$isoWeek', newYear, 1);
testOp('$isoWeekYear', newYear, year);
testOp('$isoWeek', endOfFirstWeekInYear, 1);
testOp('$isoWeekYear', endOfFirstWeekInYear, year);
testOp('$isoWeek', startOfSecondWeekInYear, 2);
testOp('$isoWeekYear', startOfSecondWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYear},
"" + year + "-W01-" + day);
} else if (day == FRIDAY || (day == SATURDAY && type === 'commonAfterLeap')) {
// A year starting on Friday will always start with week 53 of the previous year.
// A common year starting on a Saturday and after a leap year will also start with
// week 53 of the previous year.
testOp('$isoWeek', newYear, 53);
testOp('$isoWeekYear', newYear, year - 1);
testOp('$isoWeek', endOfFirstWeekInYear, 53);
testOp('$isoWeekYear', endOfFirstWeekInYear, year - 1);
testOp('$isoWeek', startOfSecondWeekInYear, 1);
testOp('$isoWeekYear', startOfSecondWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYear},
"" + (year - 1) + "-W53-" + day);
} else {
// A year starting on Saturday (except after a leap year) or Sunday will always
// start with week 52 of the previous year.
testOp('$isoWeek', newYear, 52);
testOp('$isoWeekYear', newYear, year - 1);
testOp('$isoWeek', endOfFirstWeekInYear, 52);
testOp('$isoWeekYear', endOfFirstWeekInYear, year - 1);
testOp('$isoWeek', startOfSecondWeekInYear, 1);
testOp('$isoWeekYear', startOfSecondWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYear},
"" + (year - 1) + "-W52-" + day);
}
if (type === 'leap') {
if (day <= TUESDAY) {
// A leap year starting between Monday and Tuesday will always end in week 1 of
// the next year.
testOp('$isoWeek', newYearsEve, 1);
testOp('$isoWeekYear', newYearsEve, year + 1);
testOp('$isoWeek', endOfSecondToLastWeekInYear, 52);
testOp('$isoWeekYear', endOfSecondToLastWeekInYear, year);
testOp('$isoWeek', startOfLastWeekInYear, 1);
testOp('$isoWeekYear', startOfLastWeekInYear, year + 1);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYearsEve},
"" + (year + 1) + "-W01-" + shiftWeekday(day, 1));
} else if (day <= THURSDAY) {
// A leap year starting on Wednesday or Thursday will always end with week 53.
testOp('$isoWeek', newYearsEve, 53);
testOp('$isoWeekYear', newYearsEve, year);
testOp('$isoWeek', endOfSecondToLastWeekInYear, 52);
testOp('$isoWeekYear', endOfSecondToLastWeekInYear, year);
testOp('$isoWeek', startOfLastWeekInYear, 53);
testOp('$isoWeekYear', startOfLastWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYearsEve},
"" + (year) + "-W53-" + shiftWeekday(day, 1));
} else if (day <= SATURDAY) {
// A leap year starting on Friday or Sarturday will always and with week 52
testOp('$isoWeek', newYearsEve, 52);
testOp('$isoWeekYear', newYearsEve, year);
testOp('$isoWeek', endOfSecondToLastWeekInYear, 51);
testOp('$isoWeekYear', endOfSecondToLastWeekInYear, year);
testOp('$isoWeek', startOfLastWeekInYear, 52);
testOp('$isoWeekYear', startOfLastWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYearsEve},
"" + (year) + "-W52-" + shiftWeekday(day, 1));
} else {
// A leap year starting on Sunday will always end with week 1
testOp('$isoWeek', newYearsEve, 1);
testOp('$isoWeekYear', newYearsEve, year + 1);
testOp('$isoWeek', endOfSecondToLastWeekInYear, 51);
testOp('$isoWeekYear', endOfSecondToLastWeekInYear, year);
testOp('$isoWeek', startOfLastWeekInYear, 52);
testOp('$isoWeekYear', startOfLastWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYearsEve},
"" + (year + 1) + "-W01-" + shiftWeekday(day, 1));
}
} else {
if (day <= WEDNESDAY) {
// A common year starting between Monday and Wednesday will always end in week 1
// of the next year.
testOp('$isoWeek', newYearsEve, 1);
testOp('$isoWeekYear', newYearsEve, year + 1);
testOp('$isoWeek', endOfSecondToLastWeekInYear, 52);
testOp('$isoWeekYear', endOfSecondToLastWeekInYear, year);
testOp('$isoWeek', startOfLastWeekInYear, 1);
testOp('$isoWeekYear', startOfLastWeekInYear, year + 1);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYearsEve},
"" + (year + 1) + "-W01-" + day);
} else if (day === THURSDAY) {
// A common year starting on Thursday will always end with week 53.
testOp('$isoWeek', newYearsEve, 53);
testOp('$isoWeekYear', newYearsEve, year);
testOp('$isoWeek', endOfSecondToLastWeekInYear, 52);
testOp('$isoWeekYear', endOfSecondToLastWeekInYear, year);
testOp('$isoWeek', startOfLastWeekInYear, 53);
testOp('$isoWeekYear', startOfLastWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYearsEve},
"" + (year) + "-W53-" + day);
} else {
// A common year starting on between Friday and Sunday will always end with week
// 52.
testOp('$isoWeek', newYearsEve, 52);
testOp('$isoWeekYear', newYearsEve, year);
testOp('$isoWeek', endOfSecondToLastWeekInYear, 51);
testOp('$isoWeekYear', endOfSecondToLastWeekInYear, year);
testOp('$isoWeek', startOfLastWeekInYear, 52);
testOp('$isoWeekYear', startOfLastWeekInYear, year);
testOp('$dateToString',
{format: '%G-W%V-%u', date: newYearsEve},
"" + (year) + "-W52-" + day);
}
}
});
});
assert.eq(testOpCount, 485, 'Expected 485 tests to run');
})();
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