From 5d830b1873c67def2d781acf9cc14ea8c3304c02 Mon Sep 17 00:00:00 2001
From: Allen Byrne <byrn@hdfgroup.org>
Date: Mon, 27 Mar 2017 10:41:30 -0500
Subject: Update with extra checks for reference

---
 config/cmake/jrunTest.cmake | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/config/cmake/jrunTest.cmake b/config/cmake/jrunTest.cmake
index 0e0106f..67b42fb 100644
--- a/config/cmake/jrunTest.cmake
+++ b/config/cmake/jrunTest.cmake
@@ -25,6 +25,15 @@ if (NOT TEST_REFERENCE)
   message (FATAL_ERROR "Require TEST_REFERENCE to be defined")
 endif ()
 
+if (EXISTS ${TEST_FOLDER}/${TEST_OUTPUT})
+  file (REMOVE ${TEST_FOLDER}/${TEST_OUTPUT})
+endif ()
+
+if (EXISTS ${TEST_FOLDER}/${TEST_OUTPUT}.err)
+  file (REMOVE ${TEST_FOLDER}/${TEST_OUTPUT}.err)
+endif ()
+
+# if there is not an error reference file add the error output to the stdout file
 if (NOT TEST_ERRREF)
   if (NOT SKIP_APPEND)
     # append error file since skip was not defined
@@ -60,6 +69,7 @@ execute_process (
 
 message (STATUS "COMMAND Result: ${TEST_RESULT}")
 
+# if the .err file exists and ERRROR_APPEND is enabled
 if (EXISTS ${TEST_FOLDER}/${TEST_OUTPUT}.err)
   file (READ ${TEST_FOLDER}/${TEST_OUTPUT}.err TEST_STREAM)
   if (TEST_MASK_FILE)
@@ -75,6 +85,7 @@ if (EXISTS ${TEST_FOLDER}/${TEST_OUTPUT}.err)
   endif ()
 endif ()
 
+# if the output file or the .err file needs to mask out error stack info
 if (TEST_MASK_ERROR)
   if (NOT TEST_ERRREF)
     # the error stack has been appended to the output file
@@ -125,7 +136,7 @@ if (NOT TEST_SKIP_COMPARE)
     list (LENGTH test_act len_act)
     file (STRINGS ${TEST_FOLDER}/${TEST_REFERENCE} test_ref)
     list (LENGTH test_ref len_ref)
-    if (NOT ${len_act} STREQUAL "0")
+    if (NOT ${len_act} STREQUAL "0" AND NOT ${len_ref} STREQUAL "0")
       math (EXPR _FP_LEN "${len_ref} - 1")
       foreach (line RANGE 0 ${_FP_LEN})
         list (GET test_act ${line} str_act)
@@ -137,6 +148,13 @@ if (NOT TEST_SKIP_COMPARE)
           endif ()
         endif ()
       endforeach ()
+    else ()
+      if (${len_act} STREQUAL "0")
+        message (STATUS "COMPARE Failed: ${TEST_FOLDER}/${TEST_OUTPUT} is empty")
+      endif ()
+      if (${len_ref} STREQUAL "0")
+        message (STATUS "COMPARE Failed: ${TEST_FOLDER}/${TEST_REFERENCE} is empty")
+      endif ()
     endif ()
     if (NOT ${len_act} STREQUAL ${len_ref})
       set (TEST_RESULT 1)
@@ -169,7 +187,7 @@ if (NOT TEST_SKIP_COMPARE)
       file (STRINGS ${TEST_FOLDER}/${TEST_ERRREF} test_ref)
       list (LENGTH test_ref len_ref)
       math (EXPR _FP_LEN "${len_ref} - 1")
-      if (NOT ${len_act} STREQUAL "0")
+      if (NOT ${len_act} STREQUAL "0" AND NOT ${len_ref} STREQUAL "0")
         math (EXPR _FP_LEN "${len_ref} - 1")
         foreach (line RANGE 0 ${_FP_LEN})
           list (GET test_act ${line} str_act)
@@ -181,7 +199,14 @@ if (NOT TEST_SKIP_COMPARE)
             endif ()
           endif ()
         endforeach ()
-      endif ()
+      else ()
+        if (${len_act} STREQUAL "0")
+          message (STATUS "COMPARE Failed: ${TEST_FOLDER}/${TEST_OUTPUT}.err is empty")
+        endif ()
+        if (${len_ref} STREQUAL "0")
+          message (STATUS "COMPARE Failed: ${TEST_FOLDER}/${TEST_ERRREF} is empty")
+        endif ()
+      endif()
       if (NOT ${len_act} STREQUAL ${len_ref})
         set (TEST_RESULT 1)
       endif ()
-- 
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