Merge branch 'master' of https://github.com/dopefishh/tt2015

[tt2015.git] / a2 / 1cases.tex

diff --git a/a2/1cases.tex b/a2/1cases.tex
index ce1031d..d339dfa 100644 (file)
--- a/a2/1cases.tex
+++ b/a2/1cases.tex
@@ -82,8 +82,7 @@ results to asses whether or not the SUT has passed the test.
 
 The implementation of the SUT is tested using black box testing techniques. A
 series of tests asses the correctness of the implementation with regards to the
-TCP specification. These tests are specified in Table~\textbf{referentie naar
-tests-tabel}. The test cases aim to cover the most interesting parts of the TCP
+TCP specification. These tests are specified in Table~\ref{tbl:testpairs}. The test cases aim to cover the most interesting parts of the TCP
 specification. 
 
 To cover the TCP specification as complete as possible while still maintaining
@@ -130,7 +129,22 @@ these partitions are given.
 \end{enumerate}
 
 These partitions were chosen since they correspond to key parts of the TCP
-specification. 
+specification. A single request consists of a number of packets that sent a
+to the \emph{echo-server} and back. The TCP specification state that such a
+transaction requires the following messages.
+
+\begin{center}
+       Script $-$ SYN $A$ $\rightarrow$ SUT \\
+       Script $\leftarrow$ SYN-ACK $(A+1)$ $B$ $-$ SUT \\
+       Script $-$ ACK $(A+1)$ $(B+1)$ $\rightarrow$ SUT \\
+       Script $-$ ACK-PUSH $(A+1)$ $(B+2)$ \emph{msg} $\rightarrow$ SUT \\
+       Script $\leftarrow$ ACK $(A+2+msg_{length})$ $(B+3)$ $-$ SUT \\
+       Script $\leftarrow$ ACK-PUSH $(A+2+msg_{length})$ $(B+3)$ \emph{msg} $-$ SUT
+\end{center}
+
+%
+% één na laatste packket, moet dit B+3 of B+2 zijn?
+%
 
 TCP segments are send over a TCP connection from a \emph{source} to a \emph{destination port}. Therefore segments which are received that have a 
 source or destination port set to an incorrect value should not be regarded
@@ -260,7 +274,7 @@ The we do the preflight checks as defined in Table~\ref{tbl:preflight}.
 \subsubsection{Test Cases}
 If the SUT passes the preflight checks the actual test cases can be executed.
 Table~\ref{tbl:testcases} shows the expected results of each of the test cases
-described in Table~\ref{table:testpairs}. 
+described in Table~\ref{tbl:testpairs}. 
 
 \setcounter{TCC}{1}
 \begin{table}[H]
@@ -298,10 +312,9 @@ described in Table~\ref{table:testpairs}.
                corrupted is received for each consecutive segment send.\\  \hline
        \doTCC & The ACK\# for the SEQ\# of the first segments which is
                corrupted is received for each consecutive segment send.\\ \hline
-       \hline
     \end{tabular}
 \caption{Expected results of test cases}
-\label{table:preflightresults}
+\label{tbl:testcases}
 \end{table}
 
 % Bij Ramons afwezigheid