Files
mongo/jstests/core/query/update/update_multi5.js
Steve McClure 1ffbc6c2e9 SERVER-109432: Autofix JS var usage to favor let (#40637)
GitOrigin-RevId: 9674b7db36a0f3f650d39c1e3fb2ad6ff2141cfb
2025-08-28 19:21:01 +00:00

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547 B
JavaScript

// @tags: [assumes_balancer_off, requires_multi_updates, requires_non_retryable_writes]
// tests that $addToSet works in a multi-update.
let t = db[jsTestName()];
t.drop();
assert.commandWorked(t.insert({path: "r1", subscribers: [1, 2]}));
assert.commandWorked(t.insert({path: "r2", subscribers: [3, 4]}));
let res = assert.commandWorked(t.update({}, {$addToSet: {subscribers: 5}}, {upsert: false, multi: true}));
assert.eq(res.nMatched, 2, tojson(res));
t.find().forEach(function (z) {
assert.eq(3, z.subscribers.length, tojson(z));
});