81 lines
2.8 KiB
JavaScript
81 lines
2.8 KiB
JavaScript
/**
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* Tests for invalid usages of $unionWith, or invalid stages within the $unionWith sub-pipeline.
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* @tags: [
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* # Some stages we're checking are only supported with a single read concern.
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* assumes_read_concern_unchanged
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* ]
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*/
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(function() {
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"use strict";
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load("jstests/libs/fixture_helpers.js"); // For isReplSet() and isSharded().
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const baseColl = db["base"];
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baseColl.drop();
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const unionColl = db["union"];
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unionColl.drop();
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// Ensure the base collection exists.
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assert.commandWorked(baseColl.insert({a: 1}));
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// Disallowed within an update pipeline.
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assert.commandFailedWithCode(
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baseColl.update({a: 1}, [{$unionWith: unionColl.getName()}]),
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[ErrorCodes.InvalidOptions, ErrorCodes.OperationNotSupportedInTransaction]);
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function assertFailsWithCode(pipeline, errCode) {
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assert.commandFailedWithCode(db.runCommand({
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aggregate: baseColl.getName(),
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pipeline: pipeline,
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cursor: {},
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}),
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errCode);
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}
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// Change streams are only supported against a replica set.
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if (FixtureHelpers.isReplSet(db) || FixtureHelpers.isSharded(baseColl)) {
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// Disallowed alongside a $changeStream.
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assertFailsWithCode([{$changeStream: {}}, {$unionWith: unionColl.getName()}],
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ErrorCodes.IllegalOperation);
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// Likewise, $changeStream is disallowed within a $unionWith sub-pipeline.
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assertFailsWithCode(
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[{$unionWith: {coll: unionColl.getName(), pipeline: [{$changeStream: {}}]}}], 31441);
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assert.commandFailedWithCode(db.runCommand({
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aggregate: 1,
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pipeline: [{$changeStream: {}}, {$unionWith: unionColl.getName()}],
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cursor: {},
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}),
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ErrorCodes.IllegalOperation);
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}
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// $unionWith sub-pipeline cannot contain stages which write data ($merge, $out).
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let subPipe = [{$out: "some_out_coll"}];
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assertFailsWithCode([{$unionWith: {coll: unionColl.getName(), pipeline: subPipe}}], 31441);
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subPipe = [{
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$merge: {
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into: {db: db.getName(), coll: "some_merge_coll"},
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whenMatched: "replace",
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whenNotMatched: "fail"
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}
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}];
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assertFailsWithCode([{$unionWith: {coll: unionColl.getName(), pipeline: subPipe}}], 31441);
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// Test that collection-less stages are not allowed within the $unionWith sub-pipeline.
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subPipe = [{$listCachedAndActiveUsers: {}}];
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assertFailsWithCode([{$unionWith: {coll: unionColl.getName(), pipeline: subPipe}}],
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ErrorCodes.InvalidNamespace);
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subPipe = [{$listLocalSessions: {}}];
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assertFailsWithCode([{$unionWith: {coll: unionColl.getName(), pipeline: subPipe}}],
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ErrorCodes.InvalidNamespace);
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if (FixtureHelpers.isSharded(baseColl)) {
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subPipe = [{$currentOp: {localOps: true}}];
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assertFailsWithCode([{$unionWith: {coll: unionColl.getName(), pipeline: subPipe}}],
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ErrorCodes.InvalidNamespace);
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}
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})();
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