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// @tags: [
// # mapReduce does not support afterClusterTime.
// does_not_support_causal_consistency,
// does_not_support_stepdowns,
// ]
(function() {
"use strict";
load("jstests/aggregation/extras/utils.js"); // For resultsEq.
const t = db.mr5;
t.drop();
assert.writeOK(t.insert({"partner": 1, "visits": 9}));
assert.writeOK(t.insert({"partner": 2, "visits": 9}));
assert.writeOK(t.insert({"partner": 1, "visits": 11}));
assert.writeOK(t.insert({"partner": 1, "visits": 30}));
assert.writeOK(t.insert({"partner": 2, "visits": 41}));
assert.writeOK(t.insert({"partner": 2, "visits": 41}));
let mapper = function() {
emit(this.partner, {stats: [this.visits]});
};
const reducer = function(k, v) {
var stats = [];
var total = 0;
for (var i = 0; i < v.length; i++) {
for (var j in v[i].stats) {
stats.push(v[i].stats[j]);
total += v[i].stats[j];
}
}
return {stats: stats, total: total};
};
let res = t.mapReduce(mapper, reducer, {out: "mr5_out", scope: {xx: 1}});
let resultAsObj = res.convertToSingleObject();
assert.eq(2,
Object.keySet(resultAsObj).length,
`Expected 2 keys ("1" and "2") in object ${tojson(resultAsObj)}`);
// Use resultsEq() to avoid any assumptions about order.
assert(resultsEq([9, 11, 30], resultAsObj["1"].stats));
assert(resultsEq([9, 41, 41], resultAsObj["2"].stats));
res.drop();
mapper = function() {
var x = "partner";
var y = "visits";
emit(this[x], {stats: [this[y]]});
};
res = t.mapReduce(mapper, reducer, {out: "mr5_out", scope: {xx: 1}});
resultAsObj = res.convertToSingleObject();
assert.eq(2,
Object.keySet(resultAsObj).length,
`Expected 2 keys ("1" and "2") in object ${tojson(resultAsObj)}`);
// Use resultsEq() to avoid any assumptions about order.
assert(resultsEq([9, 11, 30], resultAsObj["1"].stats));
assert(resultsEq([9, 41, 41], resultAsObj["2"].stats));
res.drop();
}());
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