mirror of https://github.com/mongodb/mongo
67 lines
2.2 KiB
JavaScript
67 lines
2.2 KiB
JavaScript
/**
|
|
* Tests for the $dateFromString expression with the optional 'onNull' parameter.
|
|
*/
|
|
(function() {
|
|
"use strict";
|
|
|
|
const onNullValue = ISODate("2017-07-04T11:56:02Z");
|
|
const coll = db.date_from_string_on_null;
|
|
coll.drop();
|
|
|
|
assert.commandWorked(coll.insert({_id: 0}));
|
|
|
|
// Test that the 'onNull' value is returned when the 'dateString' is nullish.
|
|
for (let inputDate of [null, undefined, "$missing"]) {
|
|
assert.eq(
|
|
[{_id: 0, date: onNullValue}],
|
|
coll.aggregate(
|
|
{$project: {date: {$dateFromString: {dateString: inputDate, onNull: onNullValue}}}})
|
|
.toArray());
|
|
}
|
|
|
|
// Test that null is returned when the 'timezone' or 'format' is nullish, regardless of the
|
|
// 'onNull' value.
|
|
for (let nullishValue of [null, undefined, "$missing"]) {
|
|
assert.eq([{_id: 0, date: null}],
|
|
coll.aggregate({
|
|
$project: {
|
|
date: {
|
|
$dateFromString: {
|
|
dateString: "2018-02-06T11:56:02Z",
|
|
format: nullishValue,
|
|
onNull: onNullValue
|
|
}
|
|
}
|
|
}
|
|
})
|
|
.toArray());
|
|
assert.eq([{_id: 0, date: null}],
|
|
coll.aggregate({
|
|
$project: {
|
|
date: {
|
|
$dateFromString: {
|
|
dateString: "2018-02-06T11:56:02Z",
|
|
timezone: nullishValue,
|
|
onNull: onNullValue
|
|
}
|
|
}
|
|
}
|
|
})
|
|
.toArray());
|
|
}
|
|
|
|
// Test that 'onNull' can be any type, not just an ISODate.
|
|
for (let onNull of [{}, 5, "Not a date", null, undefined]) {
|
|
assert.eq(
|
|
[{_id: 0, date: onNull}],
|
|
coll.aggregate(
|
|
{$project: {date: {$dateFromString: {dateString: "$missing", onNull: onNull}}}})
|
|
.toArray());
|
|
}
|
|
assert.eq(
|
|
[{_id: 0}],
|
|
coll.aggregate(
|
|
{$project: {date: {$dateFromString: {dateString: "$missing", onNull: "$missing"}}}})
|
|
.toArray());
|
|
})();
|