jstests/core/where4.js


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var myDB = db.getSiblingDB("where4");

myDB.dropDatabase();

assert.writeOK(myDB.where4.insert({x: 1, y: 1}));
assert.writeOK(myDB.where4.insert({x: 2, y: 1}));

assert.writeOK(myDB.where4.update({
    $where: function() {
        return this.x == 1;
    }
},
                                  {$inc: {y: 1}},
                                  false,
                                  true));

assert.eq(2, myDB.where4.findOne({x: 1}).y);
assert.eq(1, myDB.where4.findOne({x: 2}).y);

// Test that where queries work with stored javascript
assert.writeOK(myDB.system.js.save({
    _id: "where4_addOne",
    value: function(x) {
        return x + 1;
    }
}));

assert.writeOK(
    myDB.where4.update({$where: "where4_addOne(this.x) == 2"}, {$inc: {y: 1}}, false, true));

assert.eq(3, myDB.where4.findOne({x: 1}).y);
assert.eq(1, myDB.where4.findOne({x: 2}).y);