diff --git a/src/wormhole/test/test_scripts.py b/src/wormhole/test/test_scripts.py
new file mode 100644
index 0000000..cb01c8c
--- /dev/null
+++ b/src/wormhole/test/test_scripts.py
@@ -0,0 +1,123 @@
+import os
+from twisted.trial import unittest
+from twisted.python import procutils, log
+from twisted.internet.utils import getProcessOutputAndValue
+from .. import __version__
+from .common import ServerBase
+
+class Scripts(ServerBase, unittest.TestCase):
+    # we need Twisted to run the server, but we run the sender and receiver
+    # with deferToThread()
+    def find_executable(self):
+        locations = procutils.which("wormhole")
+        if not locations:
+            raise unittest.SkipTest("unable to find 'wormhole' in $PATH")
+        wormhole = locations[0]
+        here = os.path.dirname(os.path.abspath("."))
+        if not os.path.abspath(wormhole).startswith(here):
+            log.msg("locations: %s" % (locations,))
+            log.msg("here: %s" % (here,))
+            raise unittest.SkipTest("found the wrong 'wormhole' in $PATH: %s"
+                                    % wormhole)
+        return wormhole
+
+    def test_version(self):
+        # "wormhole" must be on the path, so e.g. "pip install -e ." in a
+        # virtualenv
+        wormhole = self.find_executable()
+        d = getProcessOutputAndValue(wormhole, ["--version"])
+        def _check(res):
+            out, err, rc = res
+            self.failUnlessEqual(out, "")
+            self.failUnlessEqual(err, "magic-wormhole %s\n" % __version__)
+            self.failUnlessEqual(rc, 0)
+        d.addCallback(_check)
+        return d
+
+    def test_send_text_pre_generated_code(self):
+        wormhole = self.find_executable()
+        server_args = ["--relay-url", self.relayurl]
+        code = "1-abc"
+        message = "test message"
+        send_args = server_args + [
+            "send-text",
+            "--code", code,
+            message,
+            ]
+        d1 = getProcessOutputAndValue(wormhole, send_args)
+        receive_args = server_args + [
+            "receive-text",
+            code,
+            ]
+        d2 = getProcessOutputAndValue(wormhole, receive_args)
+        def _check_sender(res):
+            out, err, rc = res
+            self.failUnlessEqual(out,
+                                 "On the other computer, please run: "
+                                 "wormhole receive-text\n"
+                                 "Wormhole code is: %s\n\n"
+                                 "text sent\n" % code
+                                 )
+            self.failUnlessEqual(err, "")
+            self.failUnlessEqual(rc, 0)
+            return d2
+        d1.addCallback(_check_sender)
+        def _check_receiver(res):
+            out, err, rc = res
+            self.failUnlessEqual(out, message+"\n")
+            self.failUnlessEqual(err, "")
+            self.failUnlessEqual(rc, 0)
+        d1.addCallback(_check_receiver)
+        return d1
+
+    def test_send_file_pre_generated_code(self):
+        code = "1-abc"
+        message = "test message"
+
+        send_dir = self.mktemp()
+        os.mkdir(send_dir)
+        with open(os.path.join(send_dir, "testfile"), "w") as f:
+            f.write(message)
+
+        wormhole = self.find_executable()
+        server_args = ["--relay-url", self.relayurl]
+        send_args = server_args + [
+            "send-file",
+            "--code", code,
+            "testfile",
+            ]
+        d1 = getProcessOutputAndValue(wormhole, send_args, path=send_dir)
+
+        receive_dir = self.mktemp()
+        os.mkdir(receive_dir)
+        receive_args = server_args + [
+            "receive-file",
+            code,
+            ]
+        d2 = getProcessOutputAndValue(wormhole, receive_args, path=receive_dir)
+        def _check_sender(res):
+            out, err, rc = res
+            self.failUnlessIn("On the other computer, please run: "
+                              "wormhole receive-file\n"
+                              "Wormhole code is '%s'\n\n" % code,
+                              out)
+            self.failUnlessIn("File sent.. waiting for confirmation\n"
+                              "Confirmation received. Transfer complete.\n",
+                              out)
+            self.failUnlessEqual(err, "")
+            self.failUnlessEqual(rc, 0)
+            return d2
+        d1.addCallback(_check_sender)
+        def _check_receiver(res):
+            out, err, rc = res
+            self.failUnlessIn("Receiving %d bytes for 'testfile'" % len(message),
+                              out)
+            self.failUnlessIn("Received file written to ", out)
+            self.failUnlessEqual(err, "")
+            self.failUnlessEqual(rc, 0)
+            fn = os.path.join(receive_dir, "testfile")
+            self.failUnless(os.path.exists(fn))
+            with open(fn, "r") as f:
+                self.failUnlessEqual(f.read(), message)
+        d1.addCallback(_check_receiver)
+        return d1