Test Generation from Combinatorial Designs
from the GUI menus in that it enforces a check for the correctness of
certain features.
Example 4.7: Each combination obtained from the levels listed in
Table 4.1 can be used to generate many test inputs. For example, con-
sider the combination in which all factors are set to Unused except the
−o option, which is set to Valid File and the file option that is set to
Exists. Assuming that files afile, bfile, cfile, and dfile exist, this factor
setting can lead to many test cases, two of which are listed below:
<
t
1
:sort −
o
afile bfile >
<
t
2
:sort −
o
cfile dfile >
One might ask as to why only one of t
1
and t
2
is not sufficient. Indeed,
t
2
might differ significantly from t
1
in that dfile is a very large-sized
file relative to bfile. R