Enable test mode outside of unit tests

_RUNNING_TEST is only set when getssl is sourced for unit tests.

This adds the undocumented -D switch to set it - and debug mode
when testing.  In this mode, debug output is suppressed unless
an error occurs.

getssl

@@ -2424,7 +2424,7 @@ test_exit() { # Exit hander when running tests
   exit_code="$?"
 
   exec 3>&-
-  exec 3>&123
+  exec 3>&123 || true
   if [[ ${exit_code} -ne 0 ]] && [[ -f "${_TEST_LOG}" ]] ; then
       echo "# $(date "+%b %d %T") ${FUNCNAME[1]}:${BASH_LINENO[1]} Test exit code ${exit_code}, log from ${_TEST_LOG} follows" >&3
       cat "${_TEST_LOG}" >&3
@@ -2434,6 +2434,19 @@ test_exit() { # Exit hander when running tests
   exit "${exit_code}"
 }
 
+test_setup() { # setup for running test
+  if [[ -z "${_TEST_LOG}" ]] ; then
+    _TEST_LOG="$(mktemp -t "getssl_test_log_XXXXXXXXXX")"
+    exec 123>&3- || true
+    exec 3>"${_TEST_LOG}"
+    trap "test_exit" EXIT
+    trap "test_exit" ERR
+    _USE_DEBUG=1
+    _RUNNING_TEST=1
+    info "Test harness detected.  Logging to ${_TEST_LOG}"
+  fi
+}
+
 traceback() { # Print function traceback
   local i d=1 lbl=" called"
   debug "Traceback"
@@ -2650,13 +2663,7 @@ trap "signal_exit INT"  INT
 # Save output in a temporary file, which is displayed if an error occurs
 _TEST_LOG=""
 if [[ ${_RUNNING_TEST} -eq 1 ]] ; then
-  _TEST_LOG="$(mktemp -t "getssl_test_log_XXXXXXXXXX")"
-  exec 123>&3-
-  exec 3>"${_TEST_LOG}"
-  trap "test_exit" EXIT
-  trap "test_exit" ERR
- _USE_DEBUG=1
- info "Test harness detected.  Logging to ${_TEST_LOG}"
+  test_setup
 fi
 
 # Parse command-line
@@ -2668,6 +2675,8 @@ while [[ -n ${1+defined} ]]; do
       echo "$PROGNAME V$VERSION"; graceful_exit ;;
     -d | --debug)
       _USE_DEBUG=1 ;;
+    -D)
+      test_setup ;;
     -c | --create)
       _CREATE_CONFIG=1 ;;
     -f | --force)

test/test_helper.bash

@@ -47,12 +47,12 @@ create_certificate() {
   # Create certificate
   cp "${CODE_DIR}/test/test-config/${CONFIG_FILE}" "${INSTALL_DIR}/.getssl/${GETSSL_CMD_HOST}/getssl.cfg"
   # shellcheck disable=SC2086
-  run ${CODE_DIR}/getssl "$@" "$GETSSL_CMD_HOST"
+  run ${CODE_DIR}/getssl "-D $@" "$GETSSL_CMD_HOST"
 }
 
 init_getssl() {
   # Run initialisation (create account key, etc)
-  run ${CODE_DIR}/getssl -c "$GETSSL_CMD_HOST"
+  run ${CODE_DIR}/getssl -D -c "$GETSSL_CMD_HOST"
   assert_success
   [ -d "$INSTALL_DIR/.getssl" ]
 }