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