Project 4 Test Cases

Last updated 1 May 01 KDP

I. Basic Connection Establishment and Termination

101: connect/accept

102: connect/accept, then close

103: connect blocks until connected

104: can make multiple connections to same remote host/port

105: can make multiple simultaneous connections to same remote host/port

106: can reconnect to same remote host/port many times

107: try to connect to invalid host

108: connect to port on local host

109: accept does not block

110: close does not block

II. Basic User Data Transfer

201: read/write work

202: read returns -1 once connection closed by remote host

203: read returns queued data even after connection closed by remote host

204: read does not block

205: small write does not block

If the write is small enough to fit entirely in buffers, it should return immediately.

206: read treats queued data as byte stream

207: write returns -1 once connection closed by remote host

208: write flushes data after close

III. Error Handling During Connection Establishment

301-303: dropping packets during connection establishment

Can you still make a connection if packets are dropped during and shortly after making the calls to connect() and accept()?

IV. Advanced User Data Transfer

401: one-way bulk data transfer

If we write a significant amount of data in one end of the connection, can we read it back out on the other end? That is, does the network actually allow me to transfer data.

402: two-way bulk data transfer

403: one-way bulk data transfer with dropped packets

404: two-way bulk data transfer with dropped packets

405-407: make sure send window size is 16 packets per connection

Window size means how many packets can be transmitted without having to get an ACK. The spec requires this to be exactly 16.

408: transfer one byte at very low network reliability

Your protocol is required to work well at moderate levels of reliability, but it is still required to work (though poorly) at very low levels of reliability.

V. Advanced Connection Termination

501-502: dropping packets during connection termination

Does a connection close properly when packets are dropped during termination.