46 lines
1.4 KiB
JavaScript
46 lines
1.4 KiB
JavaScript
// This test creates a large projection, which causes a set of field names to
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// be stored in a StringMap (based on UnorderedFastKeyTable). The hash table
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// starts with 20 slots, but must be grown repeatedly to hold the complete set
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// of fields. This test verifies that we can grow the hash table repeatedly
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// with no failures.
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//
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// Related to SERVER-9824.
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//
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// @tags: [
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// operations_longer_than_stepdown_interval_in_txns,
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// requires_getmore,
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// ]
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let testDB = db.getSiblingDB("grow_hash_table");
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let doTest = function (count) {
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print("Testing with count of " + count);
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testDB.dropDatabase();
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let id = {data: 1};
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let doc = {_id: id};
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let projection = {};
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// Create a document and a projection with fields r1, r2, r3 ...
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for (let i = 1; i <= count; ++i) {
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let r = "r" + i;
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doc[r] = i;
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projection[r] = 1;
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}
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// Store the document
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assert.commandWorked(testDB.collection.insert(doc));
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// Try to read the document using a large projection
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try {
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let findCount = testDB.collection.find({_id: id}, projection).itcount();
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assert(findCount == 1, "Failed to find single stored document, find().itcount() == " + findCount);
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} catch (e) {
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testDB.dropDatabase();
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doassert("Test FAILED! Caught exception " + tojsononeline(e));
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}
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testDB.dropDatabase();
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jsTest.log("Test PASSED");
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};
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doTest(10000);
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