.Xc
.El
.Pp
-For maximum compatability your test program should return a particular
+For maximum compatibility your test program should return a particular
exit code. This is calculated by
.Fn exit_status
so it is sufficient to always return from
functionality, written using
.Nm .
Examine them for examples of how to construct test suites.
-.Sh COMPATABILITY
+.Sh COMPATIBILITY
.Nm
strives to be compatible with the Perl Test::More and Test::Harness
modules. The test suite verifies that