mongo/jstests/core/update_arraymatch5.js

// @tags: [requires_non_retryable_writes, requires_fastcount]

t = db.update_arraymatch5;
t.drop();

t.insert({abc: {visible: true}, testarray: [{foobar_id: 316, visible: true, xxx: 1}]});
t.ensureIndex({'abc.visible': 1, 'testarray.visible': 1, 'testarray.xxx': 1});
assert(t.findOne({'abc.visible': true, testarray: {'$elemMatch': {visible: true, xxx: 1}}}), "A1");
assert(t.findOne({testarray: {'$elemMatch': {visible: true, xxx: 1}}}), "A2");

t.update({'testarray.foobar_id': 316},
         {'$set': {'testarray.$.visible': true, 'testarray.$.xxx': 2}},
         false,
         true);

assert(t.findOne(), "B1");
assert(t.findOne({testarray: {'$elemMatch': {visible: true, xxx: 2}}}), "B2");
assert(t.findOne({'abc.visible': true, testarray: {'$elemMatch': {visible: true, xxx: 2}}}), "B3");
assert.eq(1, t.find().count(), "B4");