These are various applications to test different aspects of the infinote API.
They are different in nature and depend on each other (meaning that if
inf-test-browser fails, inf-test-gtk-browser probably won't work either).

Here is a rough overview of the tests:

(NI=Non-Interactive, I=Interactive)

NI inf-test-state-vector:
   Verifies that basic inf_adopted_state_vector functions work.

I  inf-test-tcp-connection:
   Connects to localhost on port 5223, sending "Hello World" and printing
   everything it receives to stdout.

I  inf-test-tcp-server:
   Listens on 5223, accepting every connection and printing anything it
   receives from all connections.

I  inf-test-browser:
   Connects to a infinote server at localhost on port 6523, providing a simple
   command line interface to list, explore, add and remove subdirectory nodes
   on the server.

NI inf-test-chunk:
   Verifies that basic InfTextChunk operations do not cause a segfault.

NI inf-test-text-session:
   Reads all test files in the session/ subdirectory and performs the tests.
   The test files contain a number of requests from different users, a
   beginning state and an end state of the text buffer. It applies all requests
   from all users in a random order to the beginning buffer and verifies that
   at the end the buffer matches the end state.

NI inf-test-text-cleanup:
   Performs all test files in the cleanup/ subdirectory. This basically checks
   that cleaning up the request log works correctly in certain situations.
   Again, the test files contain a number of requests from different users.
   This time, however, they are always applied in order. In between the
   requests, there are <verify/> tags that verify that the request log
   of the given user has a specified size or that the user can or can not
   issue Undo/Redo in the current situation. This is to ensure that the 
   algorithm correctly shrinks the request log.

NI inf-test-text-replay
   Replays a record as recorded with InfAdoptedSessionRecord. A few records
   that should play without problems are contained in the replay/
   subdirectory.