test_server: make sure the server is reachable

used to exercise py3 issues with the server

src/wormhole/test/test_server.py

@@ -0,0 +1,49 @@
+import sys
+import requests
+from twisted.trial import unittest
+from twisted.internet import reactor
+from twisted.internet.threads import deferToThread
+from twisted.web.client import getPage, Agent, readBody
+from .common import ServerBase
+
+class Reachable(ServerBase, unittest.TestCase):
+
+    def test_getPage(self):
+        # client.getPage requires str/unicode URL, returns bytes
+        url = self.relayurl.replace("wormhole-relay/", "").encode("ascii")
+        d = getPage(url)
+        def _got(res):
+            self.failUnlessEqual(res, b"Wormhole Relay\n")
+        d.addCallback(_got)
+        return d
+
+    def test_agent(self):
+        # client.Agent is not yet ported: it wants URLs to be both unicode
+        # and bytes at the same time.
+        # https://twistedmatrix.com/trac/ticket/7407
+        if sys.version_info[0] > 2:
+            raise unittest.SkipTest("twisted.web.client.Agent does not yet support py3")
+        url = self.relayurl.replace("wormhole-relay/", "").encode("ascii")
+        agent = Agent(reactor)
+        d = agent.request("GET", url)
+        def _check(resp):
+            self.failUnlessEqual(resp.code, 200)
+            return readBody(resp)
+        d.addCallback(_check)
+        def _got(res):
+            self.failUnlessEqual(res, b"Wormhole Relay\n")
+        d.addCallback(_got)
+        return d
+
+    def test_requests(self):
+        # requests requires bytes URL, returns unicode
+        url = self.relayurl.replace("wormhole-relay/", "")
+        def _get(url):
+            r = requests.get(url)
+            r.raise_for_status()
+            return r.text
+        d = deferToThread(_get, url)
+        def _got(res):
+            self.failUnlessEqual(res, "Wormhole Relay\n")
+        d.addCallback(_got)
+        return d