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/**
* Tests running the deleteOne command on a time-series collection.
*
* @tags: [
* # We need a timeseries collection.
* requires_timeseries,
* featureFlagUpdateOneWithoutShardKey,
* ]
*/
(function() {
"use strict";
const timeFieldName = "time";
const metaFieldName = "tag";
const dateTime = ISODate("2021-07-12T16:00:00Z");
const collNamePrefix = "timeseries_delete_one_";
let testCaseId = 0;
const testDB = db.getSiblingDB(jsTestName());
assert.commandWorked(testDB.dropDatabase());
/**
* Confirms that a deleteOne() returns the expected set of documents.
*/
function testDeleteOne({initialDocList, filter, expectedResultDocs, nDeleted}) {
const coll = testDB.getCollection(collNamePrefix + testCaseId++);
assert.commandWorked(testDB.createCollection(
coll.getName(), {timeseries: {timeField: timeFieldName, metaField: metaFieldName}}));
assert.commandWorked(coll.insert(initialDocList));
const res = assert.commandWorked(coll.deleteOne(filter));
assert.eq(nDeleted, res.deletedCount);
const resultDocs = coll.find().toArray();
assert.eq(resultDocs.length, initialDocList.length - nDeleted, tojson(resultDocs));
// Validate the collection's exact contents if we were given the expected results. We may skip
// this step in some cases, if the delete doesn't pinpoint a specific document.
if (expectedResultDocs) {
assert.eq(expectedResultDocs.length, resultDocs.length, resultDocs);
expectedResultDocs.forEach(expectedDoc => {
assert.docEq(
expectedDoc,
coll.findOne({_id: expectedDoc._id}),
`Expected document (_id = ${expectedDoc._id}) not found in result collection: ${
tojson(resultDocs)}`);
});
}
}
const doc1_a_nofields = {
_id: 1,
[timeFieldName]: dateTime,
[metaFieldName]: "A",
};
const doc2_a_f101 = {
_id: 2,
[timeFieldName]: dateTime,
[metaFieldName]: "A",
f: 101
};
const doc3_a_f102 = {
_id: 3,
[timeFieldName]: dateTime,
[metaFieldName]: "A",
f: 102
};
const doc4_b_f103 = {
_id: 4,
[timeFieldName]: dateTime,
[metaFieldName]: "B",
f: 103
};
const doc5_b_f104 = {
_id: 5,
[timeFieldName]: dateTime,
[metaFieldName]: "B",
f: 104
};
const doc6_c_f105 = {
_id: 6,
[timeFieldName]: dateTime,
[metaFieldName]: "C",
f: 105
};
const doc7_c_f106 = {
_id: 7,
[timeFieldName]: dateTime,
[metaFieldName]: "C",
f: 106,
};
// Query on the 'f' field leads to zero measurement delete.
(function testZeroMeasurementDelete() {
jsTestLog("Running testZeroMeasurementDelete()");
testDeleteOne({
initialDocList: [doc1_a_nofields, doc4_b_f103, doc6_c_f105],
filter: {f: 17},
expectedDocList: [doc1_a_nofields, doc4_b_f103, doc6_c_f105],
nDeleted: 0,
});
})();
// Query on the 'f' field leads to a partial bucket delete.
(function testPartialBucketDelete() {
jsTestLog("Running testPartialBucketDelete()");
testDeleteOne({
initialDocList: [doc1_a_nofields, doc2_a_f101, doc3_a_f102],
filter: {f: 101},
expectedDocList: [doc1_a_nofields, doc3_a_f102],
nDeleted: 1,
});
})();
// Query on the 'f' field leads to a full (single document) bucket delete.
(function testFullBucketDelete() {
jsTestLog("Running testFullBucketDelete()");
testDeleteOne({
initialDocList: [doc2_a_f101],
filter: {f: 101},
expectedDocList: [],
nDeleted: 1,
});
})();
// Query on the 'tag' field matches all docs and deletes one.
(function testMatchFullBucketOnlyDeletesOne() {
jsTestLog("Running testMatchFullBucketOnlyDeletesOne()");
testDeleteOne({
initialDocList: [doc1_a_nofields, doc2_a_f101, doc3_a_f102],
filter: {[metaFieldName]: "A"},
// Don't validate exact results as we could delete any doc.
nDeleted: 1,
});
})();
// Query on the 'tag' and metric field.
(function testMetaAndMetricFilterOnlyDeletesOne() {
jsTestLog("Running testMetaAndMetricFilterOnlyDeletesOne()");
testDeleteOne({
initialDocList: [doc1_a_nofields, doc2_a_f101, doc3_a_f102],
filter: {[metaFieldName]: "A", f: {$gt: 100}},
// Don't validate exact results as we could delete any doc.
nDeleted: 1,
});
})();
// Query on the 'f' field matches docs in multiple buckets but only deletes from one.
(function testMatchMultiBucketOnlyDeletesOne() {
jsTestLog("Running testMatchMultiBucketOnlyDeletesOne()");
testDeleteOne({
initialDocList: [
doc1_a_nofields,
doc2_a_f101,
doc3_a_f102,
doc4_b_f103,
doc5_b_f104,
doc6_c_f105,
doc7_c_f106
],
filter: {f: {$gt: 101}},
// Don't validate exact results as we could delete one of a few docs.
nDeleted: 1,
});
})();
// Empty filter matches all docs but only deletes one.
(function testEmptyFilterOnlyDeletesOne() {
jsTestLog("Running testEmptyFilterOnlyDeletesOne()");
testDeleteOne({
initialDocList: [
doc1_a_nofields,
doc2_a_f101,
doc3_a_f102,
doc4_b_f103,
doc5_b_f104,
doc6_c_f105,
doc7_c_f106
],
filter: {},
// Don't validate exact results as we could delete any doc.
nDeleted: 1,
});
})();
})();
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