48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
/**
|
|
* Demonstrate that mapReduce can accept functions represented by strings.
|
|
* Some drivers do not have a type which represents a Javascript function. These languages represent
|
|
* the arguments to mapReduce as strings.
|
|
* @tags: [
|
|
* # The test runs commands that are not allowed with security token: mapReduce.
|
|
* not_allowed_with_signed_security_token,
|
|
* does_not_support_stepdowns,
|
|
* uses_map_reduce_with_temp_collections,
|
|
* # Uses $where operator
|
|
* requires_scripting,
|
|
* ]
|
|
*/
|
|
|
|
const col = db.function_string_representations;
|
|
const out = db.map_reduce_example;
|
|
col.drop();
|
|
assert.commandWorked(col.insert({
|
|
_id: "abc123",
|
|
ord_date: new Date("Oct 04, 2012"),
|
|
status: 'A',
|
|
price: 25,
|
|
items: [{sku: "mmm", qty: 5, price: 2.5}, {sku: "nnn", qty: 5, price: 2.5}]
|
|
}));
|
|
|
|
var mapFunction = "function() {emit(this._id, this.price);}";
|
|
var reduceFunction = "function(keyCustId, valuesPrices) {return Array.sum(valuesPrices);}";
|
|
out.drop();
|
|
assert.commandWorked(
|
|
col.mapReduce(mapFunction, reduceFunction, {out: {merge: "map_reduce_example"}}));
|
|
|
|
// Provided strings may end with semicolons and/or whitespace
|
|
mapFunction += " ; ";
|
|
reduceFunction += " ; ";
|
|
out.drop();
|
|
assert.commandWorked(
|
|
col.mapReduce(mapFunction, reduceFunction, {out: {merge: "map_reduce_example"}}));
|
|
|
|
// $where exhibits the same behavior
|
|
var whereFunction = "function() {return this.price === 25;}";
|
|
assert.eq(1, col.find({$where: whereFunction}).itcount());
|
|
|
|
whereFunction += ";";
|
|
assert.eq(1, col.find({$where: whereFunction}).itcount());
|
|
|
|
// system.js does not need to be tested, as its contents types' are preserved, and
|
|
// strings are not promoted into functions.
|