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// @tags: [requires_getmore, requires_fastcount]
/**
* Inserts documents with an indexed nested document field, progressively increasing the nesting
* depth until the key is too large to index. This tests that we support at least the minimum
* supported BSON nesting depth, as well as maintaining index consistency.
*/
(function() {
"use strict";
function makeNestObj(depth) {
if (depth == 1) {
return {a: 1};
} else {
return {a: makeNestObj(depth - 1)};
}
}
let collection = db.objNestTest;
collection.drop();
assert.commandWorked(collection.createIndex({a: 1}));
const kMaxDocumentDepthSoftLimit = 100;
const kJavaScriptMaxDepthLimit = 150;
let level;
for (level = 1; level < kJavaScriptMaxDepthLimit - 3; level++) {
let object = makeNestObj(level);
let res = db.runCommand({insert: collection.getName(), documents: [makeNestObj(level)]});
if (!res.ok) {
assert.commandFailedWithCode(
res, 17280, "Expected insertion to fail only because key is too large to index");
break;
}
}
assert.gt(level,
kMaxDocumentDepthSoftLimit,
"Unable to insert a document nested with " + level +
" levels, which is less than the supported limit of " + kMaxDocumentDepthSoftLimit);
assert.eq(collection.count(),
collection.find().hint({a: 1}).itcount(),
"Number of documents in collection does not match number of entries in index");
}());
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