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/**
* Test the change events generated by pipeline-based updates are expected with delta format oplog.
*
* @tags: [
* ]
*/
(function() {
"use strict";
load("jstests/libs/change_stream_util.js"); // For ChangeStreamTest
load("jstests/libs/collection_drop_recreate.js"); // For assert[Drop|Create]Collection.
assertDropAndRecreateCollection(db, "t1");
const kLargeStr = '*'.repeat(512);
assert.commandWorked(db.t1.insert({
_id: 100,
"a": 1,
"b": 2,
"obj": {"a": 1, "b": 2, "str": kLargeStr},
}));
const cst = new ChangeStreamTest(db);
const changeStreamCursor =
cst.startWatchingChanges({pipeline: [{$changeStream: {}}], collection: db.t1});
function testPipelineStyleUpdate(pipeline, expectedChange, operationType) {
assert.commandWorked(db.t1.update({_id: 100}, pipeline));
const expected = Object.assign({
documentKey: {_id: 100},
ns: {db: "test", coll: "t1"},
operationType: operationType,
},
expectedChange);
cst.assertNextChangesEqual({cursor: changeStreamCursor, expectedChanges: [expected]});
}
jsTestLog("Testing pipeline-based update with $set.");
let updatePipeline = [{$set: {a: 2}}];
let expected = {
updateDescription: {
updatedFields: {"a": 2},
removedFields: [],
truncatedArrays: [],
},
};
testPipelineStyleUpdate(updatePipeline, expected, "update");
jsTestLog("Testing pipeline-based update with $unset.");
updatePipeline = [{$unset: ["a"]}];
expected = {
updateDescription: {
updatedFields: {},
removedFields: ["a"],
truncatedArrays: [],
},
};
testPipelineStyleUpdate(updatePipeline, expected, "update");
jsTestLog("Testing pipeline-based update with $replaceRoot.");
updatePipeline =
[{$replaceRoot: {newRoot: {_id: 100, b: 2, "obj": {"a": 2, "b": 2, "str": kLargeStr}}}}];
expected = {
updateDescription: {
updatedFields: {"obj.a": 2},
removedFields: [],
truncatedArrays: [],
},
};
testPipelineStyleUpdate(updatePipeline, expected, "update");
cst.cleanUp();
}());
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