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/**
* Tests that the schema on config.settings works as intended.
*
* @tags: [does_not_support_stepdowns]
*/
(function() {
'use strict';
load("jstests/libs/feature_flag_util.js");
var st = new ShardingTest({shards: 1, config: 2});
let coll = st.config.settings;
// Updates that violate schema are rejected
// Chunk size too small
assert.commandFailed(coll.update({_id: "chunksize"}, {$set: {value: -1}}, {upsert: true}));
// Chunk size must be a number
assert.commandFailed(coll.update({_id: "chunksize"}, {$set: {value: "string"}}, {upsert: true}));
// Chunk size too big
assert.commandFailed(coll.update({_id: "chunksize"}, {$set: {value: 5000}}, {upsert: true}));
// Extra field in chunk size doc
assert.commandFailed(
coll.update({_id: "chunksize"}, {$set: {value: 100, extraField: 10}}, {upsert: true}));
// Not a valid setting _id
assert.commandFailed(coll.update({_id: "notARealSetting"}, {$set: {value: 10}}, {upsert: true}));
// Updates that match the schema are accepted
// No schema is enforced for balancer, automerge, and ReadWriteConcernDefaults
assert.commandWorked(coll.update({_id: "balancer"}, {$set: {anything: true}}, {upsert: true}));
if (FeatureFlagUtil.isEnabled(st.config, "AutoMerger")) {
assert.commandWorked(coll.update({_id: "automerge"}, {$set: {anything: true}}, {upsert: true}));
}
assert.commandWorked(
coll.update({_id: "ReadWriteConcernDefaults"}, {$set: {anything: true}}, {upsert: true}));
// Schema enforces chunksize to be a number (not an int), so doubles will be accepted and the
// balancer will fail until a correct value is set
assert.commandWorked(coll.update({_id: "chunksize"}, {$set: {value: 3.5}}, {upsert: true}));
// Valid integer value
assert.commandWorked(coll.update({_id: "chunksize"}, {$set: {value: 5}}, {upsert: true}));
// User cannot change schema on config.settings
assert.commandFailedWithCode(
st.s.getDB("config").runCommand({"collMod": "settings", "validator": {}}),
ErrorCodes.InvalidOptions);
assert.commandFailedWithCode(
st.s.getDB("config").runCommand({"collMod": "settings", "validationLevel": "off"}),
ErrorCodes.InvalidOptions);
assert.commandFailedWithCode(
st.s.getDB("config").runCommand({"collMod": "settings", "validationAction": "warn"}),
ErrorCodes.InvalidOptions);
st.stop();
})();
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