Functions for starting and stopping MongoDB deployments.

Utility functions.

Client, generator, and checker for verifying data consistency across all
members of a replica set by using the 'dbHash' command.

Utility functions for initializing and finalizing a MongoDB database's
environment.

Compare-and-set against a single document.

Functions for messing with time and clocks.

MongoDB java driver adapter

MongoDB specific controls for network manipulation.

Read Concern Majority Test.

OVERVIEW:

readConcern majority should provide the guarantee that any data returned is
the result of committed operations, i.e. operations that are present on a
majority of the nodes in the replica set, and therefore should never be rolled
back. To check this, we verify the following property, which should hold given
the restriction that we consider only document insert operations; no updates
or deletes.

If R is a readConcern majority read that occurs at time T (from the
perspective of a fixed client) and reads the set of documents D from a
collection C, then any read R' that occurs at time T’ >= T, should read a set
of  documents D' such that D is a subset of D', i.e. every document that
exists in D should exist in D'.


TEST SETUP:

In order to check the above property, this test continually inserts unique
documents, on potentially many writer threads, while a single thread
periodically reads the full state of the collection. When the test completes,
we verify that the set of documents returned by every read R is a subset of
the documents returned by the subsequent read, R'. Note that 'subsequent' in
this context has a well defined meaning since reads occur within a single
thread of execution.

e.g.

  Reader/Writer Threads:

  * = insert operation
  R = read operation

  Writer-1 ––*––––––––––*––––––––––*–––––*––––––––––>
  Writer-2 –––––––*––––––––––––*–––––––––––––*––––––>
  Writer-3 ––*–––––––––*––––––––––––––*––––––––*––––>
    .
    .
    .
  Writer-N ––––––––––*––––––––––*––––––––––––*––––––>
  Reader   –––––––R–––––––––R–––––––––R–––––––––R–––>

Runs the full Mongo test suite, including a config file. Provides exit
status reporting.

A big ol set test: lots of inserts, followed by a final read.

MongoDB tests against a sharded cluster. Including sets,
CAS register,and causal register.

Controls time and clocks.

Utility functions.