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// Cannot implicitly shard accessed collections because of collection existing when none
// expected.
// @tags: [assumes_no_implicit_collection_creation_after_drop]
// Test creation of the _id index with various options:
// - _id indexes must have key pattern {_id: 1}.
// - The name of an _id index gets corrected to "_id_".
// - _id indexes cannot have any options other than "key", "name", "ns", "v", and "collation".
// - _id indexes must have the collection default collation.
// - Non-_id indexes cannot have the name "_id_".
(function() {
"use strict";
load("jstests/libs/get_index_helpers.js");
var coll = db.index_id_options;
// _id indexes must have key pattern {_id: 1}.
coll.drop();
assert.commandWorked(coll.runCommand("create", {autoIndexId: false}));
assert.commandFailed(coll.ensureIndex({_id: -1}, {name: "_id_"}));
// The name of an _id index gets corrected to "_id_".
coll.drop();
assert.commandWorked(coll.runCommand("create", {autoIndexId: false}));
assert.commandWorked(coll.ensureIndex({_id: 1}, {name: "bad"}));
var spec = GetIndexHelpers.findByKeyPattern(coll.getIndexes(), {_id: 1});
assert.neq(null, spec, "_id index spec not found");
assert.eq("_id_", spec.name, tojson(spec));
// _id indexes cannot have any options other than "key", "name", "ns", "v", and "collation."
coll.drop();
assert.commandWorked(coll.runCommand("create", {autoIndexId: false}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", unique: true}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", sparse: false}));
assert.commandFailed(
coll.ensureIndex({_id: 1}, {name: "_id_", partialFilterExpression: {a: 1}}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", expireAfterSeconds: 3600}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", background: false}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", unknown: true}));
assert.commandWorked(coll.ensureIndex(
{_id: 1}, {name: "_id_", ns: coll.getFullName(), v: 2, collation: {locale: "simple"}}));
// _id indexes must have the collection default collation.
coll.drop();
assert.commandWorked(coll.runCommand("create", {autoIndexId: false}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", collation: {locale: "en_US"}}));
assert.commandWorked(coll.ensureIndex({_id: 1}, {name: "_id_", collation: {locale: "simple"}}));
coll.drop();
assert.commandWorked(coll.runCommand("create", {autoIndexId: false}));
assert.commandWorked(coll.ensureIndex({_id: 1}, {name: "_id_"}));
coll.drop();
assert.commandWorked(
coll.runCommand("create", {autoIndexId: false, collation: {locale: "en_US"}}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", collation: {locale: "simple"}}));
assert.commandFailed(coll.ensureIndex({_id: 1}, {name: "_id_", collation: {locale: "fr_CA"}}));
assert.commandWorked(
coll.ensureIndex({_id: 1}, {name: "_id_", collation: {locale: "en_US", strength: 3}}));
coll.drop();
assert.commandWorked(
coll.runCommand("create", {autoIndexId: false, collation: {locale: "en_US"}}));
assert.commandWorked(coll.ensureIndex({_id: 1}, {name: "_id_"}));
spec = GetIndexHelpers.findByName(coll.getIndexes(), "_id_");
assert.neq(null, spec, "_id index spec not found");
assert.eq("en_US", spec.collation.locale, tojson(spec));
// Non-_id indexes cannot have the name "_id_".
coll.drop();
assert.commandWorked(coll.runCommand("create", {autoIndexId: false}));
assert.commandFailed(coll.ensureIndex({_id: "hashed"}, {name: "_id_"}));
assert.commandFailed(coll.ensureIndex({a: 1}, {name: "_id_"}));
})();
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