Index: tests/regression/testsuite-molecules.at
===================================================================
--- tests/regression/testsuite-molecules.at	(revision 1a7fd2c0335923642805cc4cb8ae59ca58748ad8)
+++ tests/regression/testsuite-molecules.at	(revision 001f8a9151f2367cc32119fef0f83b2bfdaf9222)
@@ -57,11 +57,11 @@
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/pre/test-*.xyz .], 0)
 AT_CHECK([../../molecuilder -i test-rotated-z90.xyz -e ${abs_top_srcdir}/src/ --select-molecule-by-id 0 -m "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([file="test-rotated-z90.xyz"; diff $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
+AT_CHECK([file="test-rotated-z90.xyz"; diff -I '.*Created by molecuilder.*' $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
 AT_CHECK([../../molecuilder -i test-rotated-z180.xyz -e ${abs_top_srcdir}/src/ --select-molecule-by-id 0 -m "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([file="test-rotated-z180.xyz"; diff $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
+AT_CHECK([file="test-rotated-z180.xyz"; diff -I '.*Created by molecuilder.*' $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
 AT_CHECK([../../molecuilder -i test-rotated-z360.xyz -e ${abs_top_srcdir}/src/ --select-molecule-by-id 0 -m "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([file="test-rotated-z360.xyz"; diff $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
+AT_CHECK([file="test-rotated-z360.xyz"; diff -I '.*Created by molecuilder.*' $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
 AT_CHECK([../../molecuilder -i test-rotated-xYz20.xyz -e ${abs_top_srcdir}/src/ --select-molecule-by-id 0 -m "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([file="test-rotated-xYz20.xyz"; diff $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
+AT_CHECK([file="test-rotated-xYz20.xyz"; diff -I '.*Created by molecuilder.*' $file ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/8/post/$file], 0, [ignore], [ignore])
 AT_CLEANUP
 
@@ -71,15 +71,15 @@
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-atoms --rotate-origin 90. --position "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-z90.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-z90.xyz], 0, [ignore], [ignore])
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-atoms --rotate-origin 180. --position "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-z180.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-z180.xyz], 0, [ignore], [ignore])
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-atoms --rotate-origin 360. --position "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-z360.xyz], 0, [ignore], [ignore])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/pre/test.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-z360.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/pre/test.xyz], 0, [ignore], [ignore])
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-atoms --rotate-origin 20. --position "1,2,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-xYz20.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/9/post/test-rotated-xYz20.xyz], 0, [ignore], [ignore])
 AT_CLEANUP
 
@@ -89,15 +89,15 @@
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-molecules --rotate-self 90. --position "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-z90.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-z90.xyz], 0, [ignore], [ignore])
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-molecules --rotate-self 180. --position "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-z180.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-z180.xyz], 0, [ignore], [ignore])
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-molecules --rotate-self 360. --position "0,0,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-z360.xyz], 0, [ignore], [ignore])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/pre/test.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-z360.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/pre/test.xyz], 0, [ignore], [ignore])
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/pre/test.xyz .], 0)
 AT_CHECK([../../molecuilder -i test.xyz -e ${abs_top_srcdir}/src/ --select-all-molecules --rotate-self 20. --position "1,2,1"], 0, [stdout], [stderr])
-AT_CHECK([diff test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-xYz20.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/10/post/test-rotated-xYz20.xyz], 0, [ignore], [ignore])
 AT_CLEANUP
 
@@ -107,5 +107,5 @@
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/pre/test.xyz test-copy.xyz], 0)
 AT_CHECK([../../molecuilder -i test-copy.xyz -e ${abs_top_srcdir}/src/ --copy-molecule 0 --position "0,0,10"], 0, [stdout], [stderr])
-AT_CHECK([diff test-copy.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/post/test-copy.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test-copy.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/post/test-copy.xyz], 0, [ignore], [ignore])
 AT_CLEANUP
 
@@ -114,7 +114,7 @@
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/pre/test.xyz test-copy.xyz], 0)
 AT_CHECK([../../molecuilder -i test-copy.xyz -e ${abs_top_srcdir}/src/ --copy-molecule 0 --position "0,0,10" --undo], 0, [stdout], [stderr])
-AT_CHECK([diff test-copy.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/pre/test.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test-copy.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/pre/test.xyz], 0, [ignore], [ignore])
 AT_CHECK([/bin/cp -f ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/pre/test.xyz test-copy.xyz], 0)
 AT_CHECK([../../molecuilder -i test-copy.xyz -e ${abs_top_srcdir}/src/ --copy-molecule 0 --position "0,0,10" --undo --redo], 0, [stdout], [stderr])
-AT_CHECK([diff test-copy.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/post/test-copy.xyz], 0, [ignore], [ignore])
+AT_CHECK([diff -I '.*Created by molecuilder.*' test-copy.xyz ${abs_top_srcdir}/${AUTOTEST_PATH}/Molecules/11/post/test-copy.xyz], 0, [ignore], [ignore])
 AT_CLEANUP
