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// Test that the in memory sort capacity limit is checked for all "top N" sort candidates.
// SERVER-4716
(function() {
"use strict";
load("jstests/libs/fixture_helpers.js"); // For FixtureHelpers.
const t = db.jstests_sortb;
t.drop();
t.ensureIndex({b: 1});
let i;
for (i = 0; i < 100; ++i) {
t.save({a: i, b: i});
}
const numShards = FixtureHelpers.numberOfShardsForCollection(t);
const numLargeDocumentsToWrite = 120 * numShards;
// These large documents will not be part of the initial set of "top 100" matches, and they will
// not be part of the final set of "top 100" matches returned to the client. However, they are
// an intermediate set of "top 100" matches and should trigger an in memory sort capacity
// exception.
const big = new Array(1024 * 1024).toString();
for (; i < 100 + numLargeDocumentsToWrite; ++i) {
t.save({a: i, b: i, big: big});
}
for (; i < 200 + numLargeDocumentsToWrite; ++i) {
t.save({a: i, b: i});
}
assert.throws(function() {
t.find().sort({a: -1}).hint({b: 1}).limit(100).itcount();
});
assert.throws(function() {
t.find().sort({a: -1}).hint({b: 1}).showDiskLoc().limit(100).itcount();
});
t.drop();
})();
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