diff --git a/postgres-testing.sh b/postgres-testing.sh
new file mode 100644
index 0000000..cdaf65b
--- /dev/null
+++ b/postgres-testing.sh
@@ -0,0 +1,173 @@
+#! /bin/sh
+
+# Do some "integration" testing against running PostgreSQL server.
+
+# This file is to be sourced.
+
+: ${PGTESTS_DATADIR=`pwd`/datadir}
+: ${PGTESTS_ADMIN=`id -u -n`}
+: ${PGTESTS_ADMINDB=$PGTESTS_ADMIN}
+: ${PGTESTS_ADMINPASS=$PGTESTS_ADMIN}
+: ${PGTESTS_PORT=54321}
+: ${PGTESTS_SOCKETDIR=/tmp}
+: ${PGTESTS_USERS=test:test}
+: ${PGTESTS_DATABASES=test:test}
+
+# Stop the old cluster and/or remove it's data.
+: ${PGTESTS_STARTCLEANUP=:}
+
+# Cleanup once we exit the script.
+: ${PGTESTS_CLEANUP=:}
+
+# Cleanup once we exit the script.
+: ${PGTESTS_CLEANUP=:}
+
+export PGPORT=$PGTESTS_PORT
+export PGHOST=$PGTESTS_SOCKETDIR
+
+warning ()
+{
+    echo >&2 " ! $*"
+}
+
+
+__trap_cb ()
+{
+    IFS=' '
+    for __func in $__TRAP_ACTIONS
+    do
+        $__func
+    done
+}
+trap __trap_cb EXIT
+
+
+__pgtests_initdb ()
+{
+    initdb "$PGTESTS_DATADIR" -U "$PGTESTS_ADMIN" \
+        --auth-local=peer --auth-host=md5 \
+        ${PGTESTS_LOCALE+--locale="$PGTESTS_LOCALE"}
+}
+
+
+__pgtests_start ()
+{
+    pg_ctl -D "$PGTESTS_DATADIR" -l "$PGTESTS_DATADIR"/start.log start -o "-k $PGTESTS_SOCKETDIR -p $PGTESTS_PORT" -w
+}
+
+
+__pgtests_create_admins_db ()
+{
+    createdb -h "$PGTESTS_SOCKETDIR" "$PGTESTS_ADMINDB" --owner "$PGTESTS_ADMIN" -p "$PGTESTS_PORT"
+}
+
+
+__pgtests_passwd()
+{
+    psql -d postgres --set=user="$1" --set=pass="$2" -tA \
+        <<<"ALTER USER :\"user\" WITH ENCRYPTED PASSWORD :'pass';"
+}
+
+pgtests_start ()
+{
+    unset __TRAP_ACTIONS
+
+    if $PGTESTS_STARTCLEANUP; then
+        # We don't plan to be serious here.  This pgtests_* effort is just to
+        # ease _testing_ against running postgresql server without too much
+        # writing.
+        if test -f "$PGTESTS_DATADIR"/postmaster.pid; then
+            # Give it a try.
+            warning "Seems like server works, trying to stop."
+            pg_ctl stop -D "$PGTESTS_DATADIR" -w
+        fi
+
+        # Cleanup testing directory
+        if test -e "$PGTESTS_DATADIR"; then
+            warning "Removing old data directory."
+            rm -r "$PGTESTS_DATADIR"
+        fi
+    fi
+
+    __pgtests_initdb && __TRAP_ACTIONS="pgtests_cleanup $__TRAP_ACTIONS"
+    __pgtests_start  && __TRAP_ACTIONS="pgtests_stop $__TRAP_ACTIONS"
+    __pgtests_create_admins_db
+
+    __pgtests_passwd "$PGTESTS_ADMIN" "$PGTESTS_ADMINPASS"
+
+
+    for _pgt_user in $PGTESTS_USERS
+    do
+        save_IFS=$IFS
+        IFS=:
+        _user=
+        _pass=
+        for _part in $_pgt_user
+        do
+            if test -z "$_user"; then
+                _user=$_part
+            else
+                _pass=$_part
+            fi
+        done
+
+        createuser "$_user"
+        __pgtests_passwd "$_user" "$_pass"
+        IFS=$save_IFS
+    done
+
+
+    for _pgt_db in $PGTESTS_DATABASES
+    do
+        save_IFS=$IFS
+        IFS=:
+        _db=
+        _user=
+        for _part in $_pgt_db
+        do
+            if test -z "$_user"; then
+                _user=$_part
+            else
+                _db=$_part
+            fi
+        done
+
+        createdb "$_db" --owner "$_part"
+
+        IFS=$save_IFS
+    done
+}
+
+
+__clean_trap_action ()
+{
+    __new_actions=
+    for __action in $__TRAP_ACTIONS
+    do
+        if test "$__action" = "$1"; then
+            :
+        else
+            __new_actions="$__action $__new_actions"
+        fi
+    done
+
+    __TRAP_ACTIONS=$__new_actions
+}
+
+
+pgtests_cleanup ()
+{
+    if $PGTESTS_CLEANUP && $PGTESTS_AUTOSTOP; then
+        rm -r "$PGTESTS_DATADIR"
+    fi
+    __clean_trap_action pgtests_cleanup
+}
+
+
+pgtests_stop ()
+{
+    if $PGTESTS_AUTOSTOP; then
+        pg_ctl stop -D "$PGTESTS_DATADIR" -w
+    fi
+    __clean_trap_action pgtests_stop
+}