Args creates a CmdArgs instance with the given command name and args.

NewRunner creates a new Runner for the given test, context, and temporary directory.

NewStderrWatcher creates a Watcher that is signeled when matching a string from stderr.

NewStdoutWatcher creates a Watcher that is signeled when matching a string from stdout.

NewWatcher creates a Watcher that is signeled when matching a string from stderr or stdout.

When this environ var is set to a value and running tests with -v flag, then Runner output is logged.

CmdArgs contains a command name and any arguments.

Runner is a helper for running the indexer and other commands.

Watcher is a helper for watching a command's output for a specific string.