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/**
* Test max docs in capped collection
*
* @tags: [
* requires_fastcount,
* requires_collstats,
* requires_capped,
* # capped collections connot be sharded
* assumes_unsharded_collection,
* # SERVER-34918 The "max" option of a capped collection can be exceeded until the next insert.
* # The reason is that we don't update the count of a collection until a transaction commits,
* # by which point it is too late to complain that "max" has been exceeded.
* does_not_support_transactions,
* does_not_support_causal_consistency,
* # Reading from an pre-existing cursor after tenant migration returns stale data by design,
* # so the cursor-invalidation test will not work in that scenario.
* tenant_migration_incompatible,
* ]
*/
var t = db.capped_max1;
t.drop();
var max = 10;
var maxSize = 64 * 1024;
db.createCollection(t.getName(), {capped: true, size: maxSize, max: max});
assert.eq(max, t.stats().max);
assert.eq(maxSize, t.stats().maxSize);
assert.eq(Math.floor(maxSize / 1000), t.stats(1000).maxSize);
for (var i = 0; i < max * 2; i++) {
t.insert({x: i});
}
assert.eq(max, t.count());
// Test invalidation of cursors
var cursor = t.find().batchSize(4);
assert(cursor.hasNext());
var myX = cursor.next();
for (var j = 0; j < max * 2; j++) {
t.insert({x: j + i});
}
// Cursor should now be dead.
assert.throws(function() {
cursor.toArray();
});
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