Refactor the process of running the regression tests to allow it to be

only a partial run.  Also modified to reduce the verbosity of the creation
and loading of the sample database so that we treat those elements as
tests also.

testing/run_regressions.sh

@@ -3,36 +3,58 @@
 # Run the regression tests and display differences
 #
 DBNAME=caldav
+UNTIL=${1:-"99999"}
+
+REGRESSION="tests/regression-suite"
+RESULTS="${REGRESSION}/results"
+
+check_result() {
+  TEST="$1"
+  if [ ! -f "${REGRESSION}/${TEST}.result" ] ; then
+    touch "${REGRESSION}/${TEST}.result"
+  fi
+  diff -u "${REGRESSION}/${TEST}.result" "${RESULTS}/${TEST}" >"${REGRESSION}/diffs/${TEST}"
+
+  if [ -s "${REGRESSION}/diffs/${TEST}" -o ! -f "${REGRESSION}/${TEST}.result" ] ; then
+    echo "======================================="
+    echo "Displaying diff for test ${TEST}"
+    echo "======================================="
+    cat "${REGRESSION}/diffs/${TEST}"
+    read -p "Accept this as new standard result [y/N]? " ACCEPT
+    if [ "${ACCEPT}" = "y" ] ; then
+      cp "${RESULTS}/${TEST}" "${REGRESSION}/${TEST}.result"
+    fi
+  else
+    echo "Test ${TEST} passed OK!"
+  fi
+}
 
 # Restart PGPool to ensure we can drop and recreate the database
 # FIXME: We should really drop everything *from* the database and create it
 # from that, so we don't need to do this.
 sudo /etc/init.d/pgpool restart
-dropdb ${DBNAME}
-../dba/create-database.sh ${DBNAME}
-psql -q -f "../dba/sample-data.sql" "${DBNAME}"
+if ! dropdb ${DBNAME}; then
+  echo "Unable to drop existing database"
+  exit
+fi
 
-for T in tests/regression-suite/*.test ; do
-  TEST="`basename ${T} .test`"
-  ./dav_test regression-suite "${TEST}" | ./normalise_result > "tests/regression-suite/results/${TEST}"
-  if [ ! -f "tests/regression-suite/${TEST}.result" ] ; then
-    touch "tests/regression-suite/${TEST}.result"
-  fi
-  diff -u "tests/regression-suite/${TEST}.result" "tests/regression-suite/results/${TEST}" >"tests/regression-suite/diffs/${TEST}"
-done
+TEST="Create-Database"
+../dba/create-database.sh ${DBNAME} >"${RESULTS}/${TEST}" 2>&1
+check_result "${TEST}"
 
-for T in tests/regression-suite/*.test ; do
+TEST="Load-Sample-Data"
+psql -q -f "../dba/sample-data.sql" "${DBNAME}" >"${RESULTS}/${TEST}" 2>&1
+check_result "${TEST}"
+
+for T in ${REGRESSION}/*.test ; do
   TEST="`basename ${T} .test`"
-  if [ -s "tests/regression-suite/diffs/${TEST}" -o ! -f "tests/regression-suite/${TEST}.result" ] ; then
-    echo "======================================="
-    echo "Displaying diff for test ${TEST}"
-    echo "======================================="
-    cat "tests/regression-suite/diffs/${TEST}"
-    read -p "Accept this as new standard result [y/N]? " ACCEPT
-    if [ "${ACCEPT}" = "y" ] ; then
-      cp "tests/regression-suite/results/${TEST}" "tests/regression-suite/${TEST}.result"
-    fi
-  else
-    echo "Test ${TEST} passed OK!"
+  TESTNUM="`echo ${TEST} | cut -f1 -d'-'`"
+  TESTNUM="${TEST/-*}"
+  if [ "${TESTNUM}" -gt "${UNTIL}" ] ; then
+    break;
   fi
+  ./dav_test regression-suite "${TEST}" | ./normalise_result > "${RESULTS}/${TEST}"
+
+  check_result "${TEST}"
+
 done

testing/tests/regression-suite/Create-Database.result

@@ -0,0 +1,26 @@
+CREATE DATABASE
+ new_db_revision 
+-----------------
+ t
+(1 row)
+
+ new_db_revision 
+-----------------
+ t
+(1 row)
+
+ setval 
+--------
+     10
+(1 row)
+
+ setval 
+--------
+   1000
+(1 row)
+
+ setval 
+--------
+     10
+(1 row)
+

testing/tests/regression-suite/Load-Sample-Data.result

@@ -0,0 +1,10 @@
+ setval 
+--------
+   1000
+(1 row)
+
+ setval 
+--------
+     10
+(1 row)
+