diff --git a/tests/test-children b/tests/test-children
new file mode 100755
--- /dev/null
+++ b/tests/test-children
@@ -0,0 +1,59 @@
+#!/bin/sh
+# test children command
+
+cat <<EOF >> $HGRCPATH
+[extensions]
+hgext.children=
+EOF
+
+echo "% init"
+hg init t
+cd t
+
+echo "% no working directory"
+hg children
+
+echo % setup
+echo 0 > file0
+hg ci -qAm 0 -d '0 0'
+
+echo 1 > file1
+hg ci -qAm 1 -d '1 0'
+
+echo 2 >> file0
+hg ci -qAm 2 -d '2 0'
+
+hg co null
+echo 3 > file3
+hg ci -qAm 3 -d '3 0'
+
+echo "% hg children at revision 3 (tip)"
+hg children
+
+hg co null
+echo "% hg children at nullrev (should be 0 and 3)"
+hg children
+
+hg co 1
+echo "% hg children at revision 1 (should be 2)"
+hg children
+
+hg co 2
+echo "% hg children at revision 2 (other head)"
+hg children
+
+for i in null 0 1 2 3; do
+  echo "% hg children -r $i"
+  hg children -r $i
+done
+
+echo "% hg children -r 0 file0 (should be 2)"
+hg children -r 0 file0
+
+echo "% hg children -r 1 file0 (should be 2)"
+hg children -r 1 file0
+
+hg co 0
+echo "% hg children file0 at revision 0 (should be 2)"
+hg children file0
+