mongo/jstests/core/query/update/update_arraymatch2.js

// @tags: [requires_multi_updates, requires_non_retryable_writes]

const t = db[jsTestName()];
t.drop();

assert.commandWorked(t.insert({}));
assert.commandWorked(t.insert({x: [1, 2, 3]}));
assert.commandWorked(t.insert({x: 99}));
assert.commandWorked(t.update({x: 2}, {$inc: {"x.$": 1}}, false, true));
assert(t.findOne({x: 1}).x[1] == 3, "A1");

assert.commandWorked(t.insert({x: {y: [8, 7, 6]}}));
assert.commandWorked(t.update({"x.y": 7}, {$inc: {"x.y.$": 1}}, false, true));
assert.eq(8, t.findOne({"x.y": 8}).x.y[1], "B1");

assert.commandWorked(t.insert({x: [90, 91, 92], y: ["a", "b", "c"]}));
assert.commandWorked(t.update({x: 92}, {$set: {"y.$": "z"}}, false, true));
assert.eq("z", t.findOne({x: 92}).y[2], "B2");