--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-generaldelta.t Fri Sep 20 10:45:51 2013 -0700
@@ -0,0 +1,23 @@
+Check whether size of generaldelta revlog is not bigger than its
+regular equivalent. Test would fail if generaldelta was naive
+implementation of parentdelta: third manifest revision would be fully
+inserted due to big distance from its paren revision (zero).
+
+ $ hg init repo
+ $ cd repo
+ $ echo foo > foo
+ $ echo bar > bar
+ $ hg commit -q -Am boo
+ $ hg clone --pull . ../gdrepo -q --config format.generaldelta=yes
+ $ for r in 1 2 3; do
+ > echo $r > foo
+ > hg commit -q -m $r
+ > hg up -q -r 0
+ > hg pull . -q -r $r -R ../gdrepo
+ > done
+ $ cd ..
+ $ regsize=`du -s -b repo/.hg/store/00manifest.i | cut -f 1`
+ $ gdsize=`du -s -b gdrepo/.hg/store/00manifest.i | cut -f 1`
+ $ if ((regsize < gdsize)); then
+ > echo 'generaldelta increased size of a revlog!'
+ > fi