Teach CTest.Update tests to strongly check entries

Previously these tests just checked for matching file names in the
Update.xml files.  Now we check the update types (Updated, Modified, or
Conflicting) and reject unexpected extra entries.

Tests/CTestUpdateCommon.cmake

@@ -30,20 +30,20 @@ function(check_updates build)
   message(" found ${UPDATE_XML_FILE}")
 
   # Read entries from the Update.xml file
+  set(types "Updated|Modified|Conflicting")
   file(STRINGS ${TOP}/${UPDATE_XML_FILE} UPDATE_XML_ENTRIES
-    REGEX "FullName"
+    REGEX "<(${types}|FullName)>"
     LIMIT_INPUT 4096
     )
+  string(REGEX REPLACE
+    "[ \t]*<(${types})>[ \t]*;[ \t]*<FullName>([^<]*)</FullName>"
+    "\\1{\\2}" UPDATE_XML_ENTRIES "${UPDATE_XML_ENTRIES}")
 
-  # Verify that expected entries exist
-  set(MISSING)
-  foreach(f ${ARGN})
-    string(REPLACE "/" "[/\\\\]" regex "${f}")
-    string(REPLACE "." "\\." regex "${regex}")
-    if(NOT "${UPDATE_XML_ENTRIES}" MATCHES "<FullName>${regex}</FullName>")
-      list(APPEND MISSING ${f})
-    endif()
-  endforeach(f)
+  # Compare expected and actual entries
+  set(EXTRA "${UPDATE_XML_ENTRIES}")
+  list(REMOVE_ITEM EXTRA ${ARGN} ${UPDATE_MAYBE})
+  set(MISSING "${ARGN}")
+  list(REMOVE_ITEM MISSING ${UPDATE_XML_ENTRIES})
 
   if(NOT UPDATE_NOT_GLOBAL)
     set(rev_elements Revision PriorRevision ${UPDATE_GLOBAL_ELEMENTS})
@@ -65,13 +65,31 @@ function(check_updates build)
   endif()
 
   # Report the result
+  set(MSG "")
   if(MISSING)
     # List the missing entries
-    set(MSG "Update.xml is missing an entry for:\n")
+    set(MSG "${MSG}Update.xml is missing expected entries:\n")
     foreach(f ${MISSING})
       set(MSG "${MSG}  ${f}\n")
     endforeach(f)
+  else(MISSING)
+    # Success
+    message(" no entries missing from Update.xml")
+  endif(MISSING)
 
+  # Report the result
+  if(EXTRA)
+    # List the extra entries
+    set(MSG "${MSG}Update.xml has extra unexpected entries:\n")
+    foreach(f ${EXTRA})
+      set(MSG "${MSG}  ${f}\n")
+    endforeach(f)
+  else(EXTRA)
+    # Success
+    message(" no extra entries in Update.xml")
+  endif(EXTRA)
+
+  if(MSG)
     # Provide the log file
     file(GLOB UPDATE_LOG_FILE
       ${TOP}/${build}/Testing/Temporary/LastUpdate*.log)
@@ -85,10 +103,7 @@ function(check_updates build)
 
     # Display the error message
     message(FATAL_ERROR "${MSG}")
-  else(MISSING)
-    # Success
-    message(" no entries missing from Update.xml")
-  endif(MISSING)
+  endif(MSG)
 endfunction(check_updates)
 
 #-----------------------------------------------------------------------------
@@ -175,8 +190,15 @@ function(run_dashboard_command_line bin_dir)
     )
 
   # Verify the updates reported by CTest.
-  check_updates(${bin_dir} foo.txt bar.txt zot.txt CTestConfig.cmake
-                           subdir/foo.txt subdir/bar.txt)
+  set(UPDATE_MAYBE Updated{subdir})
+  check_updates(${bin_dir}
+    Updated{foo.txt}
+    Updated{bar.txt}
+    Updated{zot.txt}
+    Updated{subdir/foo.txt}
+    Updated{subdir/bar.txt}
+    Modified{CTestConfig.cmake}
+    )
 endfunction(run_dashboard_command_line)
 
 #-----------------------------------------------------------------------------
@@ -188,8 +210,14 @@ function(run_dashboard_script name)
     )
 
   # Verify the updates reported by CTest.
-  check_updates(dash-binary foo.txt bar.txt zot.txt
-                            subdir/foo.txt subdir/bar.txt)
+  set(UPDATE_MAYBE Updated{subdir})
+  check_updates(dash-binary
+    Updated{foo.txt}
+    Updated{bar.txt}
+    Updated{zot.txt}
+    Updated{subdir/foo.txt}
+    Updated{subdir/bar.txt}
+    )
 endfunction(run_dashboard_script)
 
 #-----------------------------------------------------------------------------