Make table tests run on linux; add comments explaining how to run them.

Needed for testing 41916.  r=karnaze

layout/html/tests/table/rtest.sh

@@ -1,7 +1,33 @@
 #!/bin/sh
 
+# Table regression tests.
+#
+# How to run:
+# 1. Before you make changes, run:
+#    rtest.sh baseline
+# 2. Make your changes and rebuild
+# 3. rtest.sh verify >outfilename
+#
+# This unfortunately doesn't work if you build in a separate objdir.
+# If you do, you'll set the MOZILLA_FIVE_HOME variable below to point
+# to your objdir.
+# To fix this we'd need to make a Makefile.in for this directory
+# and patch in the objdir from the build system.
+#
+
 dirs="core viewer_tests bugs marvin other dom"
 
+# Set a bunch of environment vars needed by runtests.sh or viewer:
+MOZ_SRC=`pwd | sed "s_/mozilla/layout/html/tests/table__"`
+export MOZ_SRC
+
+# Insert objdir between mozilla and dist if necessary:
+MOZILLA_FIVE_HOME=$MOZ_SRC/mozilla/dist/bin
+export MOZILLA_FIVE_HOME
+
+LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$MOZILLA_FIVE_HOME
+export LD_LIBRARY_PATH
+
 case $1 in
   baseline|verify|clean)
     ;;

layout/html/tests/table/runtests.sh

@@ -3,7 +3,8 @@
 # create test file to use first; since we don't know where the tree
 # is, and we need full pathnames in the file, we create it on the fly.
 
-viewer=$MOZ_SRC/mozilla/dist/bin/viewer
+viewer=$MOZILLA_FIVE_HOME/viewer
+echo viewer: $viewer
 testsfile=/tmp/$$-tests.txt
 
 sed -e "s@file:///s|@file:$MOZ_SRC@" < file_list.txt > $testsfile
@@ -11,11 +12,11 @@ sed -e "s@file:///s|@file:$MOZ_SRC@" < file_list.txt > $testsfile
 if test "$1"x = "baselinex"; then
   rm -r -f baseline
   mkdir baseline
-  $viewer -o baseline/ -f $testsfile
+  $viewer -d 1 -o baseline/ -f $testsfile
 elif test "$1"x = "verifyx"; then
   rm -r -f verify
   mkdir verify
-  $viewer -o verify/ -rd baseline/ -f $testsfile
+  $viewer -d 1 -o verify/ -rd baseline/ -f $testsfile
 elif test "$1"x = "cleanx"; then
   rm -r -f verify baseline  
 else