diff --git a/tests/helpers.sh b/tests/helpers.sh
new file mode 100644
--- /dev/null
+++ b/tests/helpers.sh
@@ -0,0 +1,9 @@
+#/bin/sh
+
+hideport() { sed "s/localhost:$HGPORT/localhost:\$HGPORT/"; }
+
+repr() { python -c "import sys; print repr(sys.stdin.read()).replace('\\n', '\n')" }
+
+hidehex() { python -c 'import sys, re; print re.replace("\b[0-9A-Fa-f]{12,40}", "X" * 12)' }
+
+hidetmp() { sed "s/$HGTMP/\$HGTMP/"; }
\ No newline at end of file