I'm told by judah.schvimer that it is sometimes useful to be able to correlate a process via its command line arguments to the test that started the process. Currently we achieve this by passing a "name" to ReplicaSetTest and ShardingTest. This has a few downsides relative to having resmoke inject the test name:

• It is optional so not every test passes it in
• The name may not exactly match the test name
• There is nothing to prevent two tests from passing the same name
  • This is actually the default state since most tests start as a copy of another
• Updating the name manually when writing or renaming tests is busywork

Injecting the test name can be done in a few ways:

• Adding a --comment argument to mongo binaries that is ignored and can be repeated
• Setting a default name that ReplSetTest and ShardingTest use by default if none is passed in
• Adding the test name to the dbpath prefix passed to tests