crash-reporter: Fix race between test code and rsyslogd

crash_sender

Index: crash_sender
diff --git a/crash_sender b/crash_sender
index 684986468518d0301d51af08571d6c910ac5ef0a..9d34e34b018abe7657393266b2eef2ea030b5e7d 100644
--- a/crash_sender
+++ b/crash_sender
@@ -68,6 +68,12 @@ lecho() {
   logger -t "${TAG}" "$@"
 }
 
+# Returns true if mock is enabled.
+is_mock() {
+  [ -f "${MOCK_CRASH_SENDING}" ] && return 0
+  return 1
+}
+
 cleanup() {
   if [ -n "${TMP_DIR}" ]; then
     rm -rf "${TMP_DIR}"
@@ -75,6 +81,11 @@ cleanup() {
   if [ ${CLEAN_UP_RUN_FILE} -eq 1 ]; then
     rm -f "${RUN_FILE}"
   fi
+  if is_mock; then
+    # For testing purposes, emit a message to log so that we
+    # know when the test has received all the messages from this run.
+    lecho "crash_sender done."
+  fi
 }
 
 check_not_already_running() {
@@ -165,12 +176,6 @@ get_key_value() {
   grep "$2=" "$1" | cut -d = -f 2-
 }
 
-# Returns true if mock is enabled.
-is_mock() {
-  [ -f "${MOCK_CRASH_SENDING}" ] && return 0
-  return 1
-}
-
 # Return the board name.
 get_board() {
   echo $(get_key_value "/etc/lsb-release" "CHROMEOS_RELEASE_BOARD")