54 lines
2.3 KiB
JavaScript
54 lines
2.3 KiB
JavaScript
// Tests that index validation succeeds for long keys when failIndexKeyTooLong is set to false.
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// See: SERVER-22234
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'use strict';
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(function() {
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var coll = db.longindex;
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coll.drop();
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function checkCollectionIsValid({valid, full}) {
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var res = coll.validate(full);
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assert.commandWorked(res);
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assert.eq(res.valid, valid, tojson(res));
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// Verify that the top level response object is consistent with the index-specific one.
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if (full) {
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assert.eq(
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res.valid, res.indexDetails[coll.getFullName() + '.$_id_'].valid, tojson(res));
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}
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}
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// Keys >= 1024 bytes cannot be indexed. A string represented as a BSON object has a 12 byte
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// overhead. So a 1012 byte string corresponds to a 1024 byte key.
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// The 12 byte overhead consists of `int32, \x02, \x00, int32` before the raw string and
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// `\00, \00` after it. For details, see: http://bsonspec.org/spec.html
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var longVal = 'x'.repeat(1012);
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// Verify that validation succeeds when the key is < 1024 bytes.
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var boundaryVal = 'x'.repeat(1011);
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assert.writeOK(coll.insert({_id: boundaryVal}));
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checkCollectionIsValid({valid: true, full: false});
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checkCollectionIsValid({valid: true, full: true});
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assert.commandWorked(db.adminCommand({setParameter: 1, failIndexKeyTooLong: false}));
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assert.writeOK(coll.insert({_id: longVal}));
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// Verify that validation succeeds when the failIndexKeyTooLong parameter is set to false,
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// even when there are fewer index keys than documents.
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checkCollectionIsValid({valid: true, full: false});
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checkCollectionIsValid({valid: true, full: true});
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// Change failIndexKeyTooLong back to the default value.
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assert.commandWorked(db.adminCommand({setParameter: 1, failIndexKeyTooLong: true}));
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// Verify that a non-full validation fails when the failIndexKeyTooLong parameter is
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// reverted to its old value and there are mismatched index keys and documents.
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checkCollectionIsValid({valid: false, full: false});
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// Verify that a full validation still succeeds.
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checkCollectionIsValid({valid: true, full: true});
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// Explicitly drop the collection to avoid failures in post-test hooks that run dbHash and
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// validate commands.
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coll.drop();
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})();
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