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33 lines
1.4 KiB
JavaScript
33 lines
1.4 KiB
JavaScript
/**
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* Test that an erroneous Change Stream pipeline responds with an error that includes the
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* "NonResumableChangeStreamError" label.
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*/
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(function() {
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"use strict";
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load("jstests/libs/collection_drop_recreate.js"); // For assertDropAndRecreateCollection.
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// Drop and recreate the collections to be used in this set of tests.
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const coll = assertDropAndRecreateCollection(db, "change_stream_error_label");
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// Attaching a projection to the Change Stream that filters out the resume token (stored in the
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// _id field) guarantees a ChangeStreamFatalError as soon as we get the first change.
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const changeStream = coll.watch([{$project: {_id: 0}}], {batchSize: 1});
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assert.commandWorked(coll.insert({a: 1}));
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const err = assert.throws(function() {
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// Call hasNext() until it throws an error or unexpectedly returns true. We need the
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// assert.soon() to keep trying here, because the above insert command isn't immediately
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// observable to the change stream in sharded configurations.
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assert.soon(function() {
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return changeStream.hasNext();
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});
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});
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// The hasNext() sends a getMore command, which should generate a ChangeStreamFatalError reply
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// that includes the NonResumableChangeStreamError errorLabel.
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assert.commandFailedWithCode(err, ErrorCodes.ChangeStreamFatalError);
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assert("errorLabels" in err, err);
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assert.contains("NonResumableChangeStreamError", err.errorLabels, err);
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}()); |