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mongo/jstests/core/capped_max1.js

33 lines
748 B
JavaScript

// Test max docs in capped collection
//
// @tags: [requires_fastcount, requires_collstats, requires_capped]
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();
});