diff --git a/Lib/test/test_tools.py b/Lib/test/test_tools.py
new file mode 100644
--- /dev/null
+++ b/Lib/test/test_tools.py
@@ -0,0 +1,33 @@
+"""Tests for reindent.py."""
+
+import os
+import unittest
+import sysconfig
+from test import support
+from test.script_helper import assert_python_ok
+
+if not sysconfig.is_python_build():
+    raise unittest.SkipTest('requires an uninstalled Python build')
+
+srcdir = sysconfig.get_config_var('projectbase')
+basepath = os.path.join(os.getcwd(), srcdir, 'Tools')
+
+
+class ReindentTests(unittest.TestCase):
+    script = os.path.join(basepath, 'scripts', 'reindent.py')
+
+    def test_noargs(self):
+        assert_python_ok(self.script)
+
+    def test_help(self):
+        rc, out, err = assert_python_ok(self.script, '-h')
+        self.assertEqual(out, b'')
+        self.assertGreater(err, b'')
+
+
+def test_main():
+    support.run_unittest(ReindentTests)
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/Tools/parser/test_unparse.py b/Tools/parser/test_unparse.py
--- a/Tools/parser/test_unparse.py
+++ b/Tools/parser/test_unparse.py
@@ -1,3 +1,5 @@
+# XXX move to test_tools
+
 import unittest
 import test.support
 import io