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// @tags: [
// # mapReduce does not support afterClusterTime.
// does_not_support_causal_consistency,
// does_not_support_stepdowns,
// requires_fastcount,
// ]
t = db.mr_bigobject;
t.drop();
var large = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
var s = large;
while (s.length < (6 * 1024 * 1024)) {
s += large;
}
for (i = 0; i < 5; i++)
t.insert({_id: i, s: s});
m = function() {
emit(1, this.s + this.s);
};
r = function(k, v) {
return 1;
};
assert.throws(function() {
r = t.mapReduce(m, r, "mr_bigobject_out");
}, [], "emit should fail");
m = function() {
emit(1, this.s);
};
assert.eq({1: 1}, t.mapReduce(m, r, "mr_bigobject_out").convertToSingleObject(), "A1");
r = function(k, v) {
total = 0;
for (var i = 0; i < v.length; i++) {
var x = v[i];
if (typeof(x) == "number")
total += x;
else
total += x.length;
}
return total;
};
assert.eq(
{1: t.count() * s.length}, t.mapReduce(m, r, "mr_bigobject_out").convertToSingleObject(), "A1");
t.drop();
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