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26 lines
1.0 KiB
JavaScript
26 lines
1.0 KiB
JavaScript
// Utilities for testing UUIDs.
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/**
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* Reads the collection entry for 'nss' from config.collections, asserts that such an entry exists,
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* and returns its 'uuid' field, which may be undefined.
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*/
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function getUUIDFromConfigCollections(mongosConn, nss) {
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let collEntry = mongosConn.getDB("config").collections.findOne({_id: nss});
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assert.neq(undefined, collEntry);
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return collEntry.uuid;
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}
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/**
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* Calls listCollections on a connection to 'db' with a filter for 'collName', asserts that a result
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* for 'collName' was returned, and returns its 'uuid' field, which may be undefined.
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*/
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function getUUIDFromListCollections(db, collName) {
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let listCollsRes = db.runCommand({listCollections: 1, filter: {name: collName}});
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assert.commandWorked(listCollsRes);
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assert.neq(undefined, listCollsRes.cursor);
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assert.neq(undefined, listCollsRes.cursor.firstBatch);
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assert.eq(1, listCollsRes.cursor.firstBatch.length);
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assert.neq(undefined, listCollsRes.cursor.firstBatch[0].info);
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return listCollsRes.cursor.firstBatch[0].info.uuid;
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}
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