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// Cannot implicitly shard accessed collections because of following errmsg: A single
// update/delete on a sharded collection must contain an exact match on _id or contain the shard
// key.
// @tags: [assumes_unsharded_collection, requires_non_retryable_writes]
// Basic examples for $mul (multiply)
var res;
var coll = db.update_mul;
coll.drop();
// $mul positive
coll.remove({});
coll.save({_id: 1, a: 2});
res = coll.update({}, {$mul: {a: 10}});
assert.commandWorked(res);
assert.eq(coll.findOne().a, 20);
// $mul negative
coll.remove({});
coll.save({_id: 1, a: 2});
res = coll.update({}, {$mul: {a: -10}});
assert.commandWorked(res);
assert.eq(coll.findOne().a, -20);
// $mul zero
coll.remove({});
coll.save({_id: 1, a: 2});
res = coll.update({}, {$mul: {a: 0}});
assert.commandWorked(res);
assert.eq(coll.findOne().a, 0);
// $mul decimal
coll.remove({});
coll.save({_id: 1, a: 2});
res = coll.update({}, {$mul: {a: 1.1}});
assert.commandWorked(res);
assert.eq(coll.findOne().a, 2.2);
// $mul negative decimal
coll.remove({});
coll.save({_id: 1, a: 2});
res = coll.update({}, {$mul: {a: -0.1}});
assert.commandWorked(res);
assert.eq(coll.findOne().a, -0.2);
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