The PR originally added two additional cases to the file and was then split up:

 * mongocollection-aggregatecursor-001: limit less than batchSize
 * mongocollection-aggregatecursor-002: limit equal to batchSize
 * mongocollection-aggregatecursor-003: limit greater than batchSize

We're still testing the very same case in your original test, in addition to two others.