--- a/tests/test-hgrc	Wed May 26 14:03:29 2010 -0700
+++ b/tests/test-hgrc	Wed May 26 14:03:29 2010 -0700
@@ -29,6 +29,28 @@
 hg version 2>&1 | sed -e "s|$HGRCPATH|\$HGRCPATH|"
 unset FAKEPATH
 
+echo "% username expansion"
+olduser=$HGUSER
+unset HGUSER
+
+FAKEUSER='John Doe'
+export FAKEUSER
+echo '[ui]' > $HGRCPATH
+echo 'username = $FAKEUSER' >> $HGRCPATH
+
+hg init usertest
+cd usertest
+touch bar
+hg commit --addremove --quiet -m "added bar"
+hg log --template "{author}\n"
+cd ..
+
+hg showconfig | sed -e "s:$p:...:"
+
+unset FAKEUSER
+HGUSER=$olduser
+export HGUSER
+
 # HGPLAIN
 cd ..
 p=`pwd`