72 lines
2.3 KiB
JavaScript
72 lines
2.3 KiB
JavaScript
/**
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* Test that applyOps ignores updates intended for array elements or subdocument fields, if the
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* target document lacks the expected array/subdocument. This can arise when re-applying past
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* operations that happened before the array/subdoc field was removed. The applyOps command must be
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* able to continue past these errors for the sake of idempotency.
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*
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* Additionally, if an update to one field fails, updates to other fields in the same applyOps
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* operation should succeed.
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*
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* The original motivation for this test is MongoMirror.
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*
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* @tags: [
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* requires_non_retryable_commands,
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* # applyOps is not supported on mongos
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* assumes_against_mongod_not_mongos,
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* # applyOps uses the oplog which requires replication support.
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* requires_replication,
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* # Tenant migrations don't support applyOps.
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* tenant_migration_incompatible,
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* ]
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*/
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(function() {
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"use strict";
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const coll = db.getCollection(jsTestName());
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coll.drop();
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// Run applyOps as MongoMirror does, with a dummy command to make it non-atomic. MongoMirror does
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// not use allowAtomic: false.
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function applyOps(ops) {
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ops.push({op: "c", ns: "admin.$cmd", o: {applyOps: [{op: "n", ns: "", o: {"msg": "noop"}}]}});
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let command = {applyOps: ops, writeConcern: {w: "majority"}};
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assert.commandWorked(db.adminCommand(command));
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}
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const originalDoc = {
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_id: 1,
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a: null
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};
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coll.insert(originalDoc);
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// Update field "a", which is null, but apply an operation intended for an array.
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applyOps(
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[{ns: coll.getFullName(), op: "u", o2: {_id: 1}, o: {$v: 2, diff: {sa: {a: true, u0: 1}}}}]);
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assert.eq(originalDoc, coll.findOne());
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// Same, but also set a new field 'b' to 1.
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applyOps([{
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ns: coll.getFullName(),
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op: "u",
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o2: {_id: 1},
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o: {$v: 2, diff: {u: {b: 1}, sa: {a: true, u0: 1}}}
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}]);
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assert.eq({_id: 1, a: null, b: 1}, coll.findOne());
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// An operation intended for a subdocument.
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applyOps(
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[{ns: coll.getFullName(), op: "u", o2: {_id: 1}, o: {$v: 2, diff: {sa: {u: {field: 2}}}}}]);
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assert.eq({_id: 1, a: null, b: 1}, coll.findOne());
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// Same, but set 'b' to 2.
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applyOps([{
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ns: coll.getFullName(),
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op: "u",
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o2: {_id: 1},
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o: {$v: 2, diff: {u: {b: 2}, sa: {u: {field: 2}}}}
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}]);
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assert.eq({_id: 1, a: null, b: 2}, coll.findOne());
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}());
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