diff --git a/tests/testlib/push-checkheads-util.sh b/tests/testlib/push-checkheads-util.sh
new file mode 100644
--- /dev/null
+++ b/tests/testlib/push-checkheads-util.sh
@@ -0,0 +1,44 @@
+# setup config and various utility to test new heads checks on push
+
+cat >> $HGRCPATH <<EOF
+[ui]
+# simpler log output
+logtemplate ="{node|short} ({phase}): {desc}\n"
+
+[phases]
+# non publishing server
+publish=False
+
+[extensions]
+# we need to strip some changeset for some test cases
+strip=
+
+[experimental]
+# enable evolution
+evolution=all
+
+[alias]
+# fix date used to create obsolete markers.
+debugobsolete=debugobsolete -d '0 0'
+EOF
+
+mkcommit() {
+   echo "$1" > "$1"
+   hg add "$1"
+   hg ci -m "$1"
+}
+
+getid() {
+   hg log --hidden --template '{node}\n' --rev "$1"
+}
+
+setuprepos() {
+    echo creating basic server and client repo
+    hg init server
+    cd server
+    mkcommit root
+    hg phase --public .
+    mkcommit A0
+    cd ..
+    hg clone server client
+}