CreateTemplate takes in a path to a template file and parses the file to create a Template instance.

WaitForDir returns when the specified directory is located in the filesystem, or if there is an error opening the directory once it is found.

Clock implements ClockInterface with the standard time library functions.

FileSystem provides utility functions for interacting with the file system.

Mock of ClockInterface interface.

Mock of FileSystemInterface interface.

ClockInterface allows for mocking out the functionality of the standard time library when testing.

FileSystemInterface allows for mocking out the functionality of FileSystem to avoid calls to the actual file system during testing.