// Tests $where use of functions defined in the system.js collection.
// @tags: [
//   # This test expects a function stored in the system.js collection to be available to $where,
//   # which may not be the case if it is implicitly sharded in a passthrough.
//   assumes_unsharded_collection,
//   requires_multi_updates,
//   requires_non_retryable_writes,
//   requires_scripting,
// ]
(function() {
"use strict";

const testDB = db.getSiblingDB("where_system_js");
const testColl = testDB.where_system_js;
const systemJsColl = testDB.system.js;

assert.commandWorked(testDB.dropDatabase());

assert.commandWorked(testColl.insert([{x: 1, y: 1}, {x: 2, y: 1}]));

assert.commandWorked(testColl.update({
    $where: function() {
        return this.x == 1;
    }
},
                                     {$inc: {y: 1}},
                                     false,
                                     true));

assert.eq(2, testColl.findOne({x: 1}).y);
assert.eq(1, testColl.findOne({x: 2}).y);

// Test that where queries work with stored javascript
assert.commandWorked(systemJsColl.insert({
    _id: "addOne",
    value: function(x) {
        return x + 1;
    }
}));

assert.commandWorked(testColl.update({$where: "addOne(this.x) == 2"}, {$inc: {y: 1}}, false, true));

assert.eq(3, testColl.findOne({x: 1}).y);
assert.eq(1, testColl.findOne({x: 2}).y);

// Test that $where rejects a system.js script of type CodeWithScope.
assert.commandWorked(
    systemJsColl.insert({_id: "code_with_scope", value: Code("function(){return 1;}", {})}));

assert.commandFailedWithCode(
    testDB.runCommand({find: testColl.getName(), filter: {$where: "code_with_scope(this.x)"}}),
    4546000);
}());