33 lines
1.0 KiB
JavaScript
33 lines
1.0 KiB
JavaScript
// Test dropping an index that is being used by an agg pipeline.
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const coll = db[jsTestName()];
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const docsPerBatch = 3;
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coll.drop();
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// Initialize collection with eight 1M documents, and index on field "a".
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const longString = 'x'.repeat(1024 * 1024);
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for (let i = 0; i < 100; ++i) {
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assert.commandWorked(coll.insert({a: 1, bigField: longString}));
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}
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assert.commandWorked(coll.createIndex({a: 1}));
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// Create pipeline that uses index "a", with a small initial batch size.
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let cursor = coll.aggregate([{$match: {a: 1}}], {cursor: {batchSize: docsPerBatch}});
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for (let i = 0; i < docsPerBatch; ++i) {
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assert(cursor.hasNext());
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assert.eq(1, cursor.next().a);
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}
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// Drop index "a".
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assert.commandWorked(coll.dropIndex({a: 1}));
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// Issue a getmore against agg cursor. Note that it is not defined whether the server continues to
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// generate further results for the cursor.
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try {
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cursor.hasNext();
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cursor.next();
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} catch (e) {
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}
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// Verify that the server hasn't crashed.
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assert.commandWorked(db.adminCommand({ping: 1}));
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