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// Provides methods for inspecting the in-memory and on-disk database caches on shard nodes.
function checkInMemoryDatabaseVersion(conn, dbName, expectedVersion) {
const res = conn.adminCommand({getDatabaseVersion: dbName});
assert.commandWorked(res);
assert.docEq(res.dbVersion,
expectedVersion,
conn + " did not have expected in-memory database version for " + dbName);
}
function checkOnDiskDatabaseVersion(conn, dbName, authoritativeEntry) {
const res = conn.getDB("config").runCommand({find: "cache.databases", filter: {_id: dbName}});
assert.commandWorked(res);
const cacheEntry = res.cursor.firstBatch[0];
if (authoritativeEntry === undefined) {
assert.eq(cacheEntry, undefined);
} else {
// Only compare the _id and version fields.
assert.neq(null, authoritativeEntry._id);
assert.neq(null, cacheEntry._id);
assert.eq(authoritativeEntry._id, cacheEntry._id);
assert.neq(null, authoritativeEntry.version);
assert.neq(null, cacheEntry.version);
assert.docEq(authoritativeEntry.version, cacheEntry.version);
}
}
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