+#### Function invoked by trap on exit.
+cleanup() {
+ #### Save exit status to use as status for this program.
+ status=$?
+
+ #### Clean up test mail space.
+ #### cd to $MH_TEST_DIR before trying to remove its Mail
+ #### subdirectory. rm on Solaris won't remove it if it's in the
+ #### path of the current working directory.
+ test -z "$MH_TEST_NOCLEANUP" && (cd $MH_TEST_DIR; rm -rf "$MH_TEST_DIR"/Mail)
+
+ #### Report test name if set, which indicates failure.
+ #### Relies on set -e to invoke the trap which calls
+ #### this function on failure.
+ #### To use:
+ #### 1) Set test name before running the test, use start_test().
+ #### 2) Unset upon successful completion, use finish_test().
+ if test -n "$nmh_tests_testname"; then
+ echo $nmh_tests_testname failed
+ fi
+
+ #### Exit with non-zero status if failure. Failure is defined as either
+ #### non-empty nmh_tests_testname or non-zero exit status on entry to the
+ #### function.
+ if test -n "$nmh_tests_testname" -o $status -ne 0; then
+ test $status -ne 0 && exit $status || exit 1
+ test $status -ne 0 && exit 0 || exit 0
+ fi
+}
+
+#### Function to set the test name, and whatever the future brings.
+start_test() {
+ nmh_tests_testname="$1"
+}
+
+#### Corresponding function to indicate that the test has finished. It need
+#### not be called after each test, just the last one in a file.
+finish_test() {
+ unset nmh_tests_testname
+}
+