test suite updates: highlight failed test scripts; optionally save failed test output; report number of successful tests; exit based on number of test failures; indent warning messages to make them stand out

tests/errors.tests

@@ -11,6 +11,8 @@
 #   You should have received a copy of the GNU General Public License
 #   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
+. ./test-aux-functions
+#
 # These should all be safe
 LC_ALL=C
 LC_CTYPE=C
@@ -348,31 +350,34 @@ readonly xx=5
 echo $((xx=5))
 echo $?
 
-${THIS_SH} ./errors1.sub
-${THIS_SH} ./errors2.sub
-${THIS_SH} ./errors3.sub
-${THIS_SH} ./errors4.sub
+test_runsub ./errors1.sub
+test_runsub ./errors2.sub
+test_runsub ./errors3.sub
+test_runsub ./errors4.sub
+printf '\terrors4.sub\n'
 ${THIS_SH} -o posix ./errors4.sub
 
-${THIS_SH} ./errors5.sub
+test_runsub ./errors5.sub
 
-${THIS_SH} ./errors6.sub
+test_runsub ./errors6.sub
+printf '\terrors6.sub\n'
 THIS_SH="${THIS_SH} -o posix" ${THIS_SH} ./errors6.sub
 
-${THIS_SH} ./errors7.sub
+test_runsub ./errors7.sub
+printf '\terrors7.sub\n'
 ${THIS_SH} -o posix ./errors7.sub
 
-${THIS_SH} ./errors8.sub
-${THIS_SH} ./errors9.sub
+test_runsub ./errors8.sub
+test_runsub ./errors9.sub
 
 # invalid numeric arguments and too many arguments
-${THIS_SH} ./errors10.sub
+test_runsub ./errors10.sub
 
 # invalid identifiers to readonly/export
-${THIS_SH} ./errors11.sub
+test_runsub ./errors11.sub
 
 # EOF when parsing compound commands
-${THIS_SH} ./errors12.sub
+test_runsub ./errors12.sub
 
 ${THIS_SH} -c 'return ; echo after return' bash
 ${THIS_SH} -o posix -c 'return ; echo after return' bash