MAINT-1144: Re-enable skipped LLHTTPClient tests with local server.

Over the years we've skipped more and more of the tests in
llhttpclient_test.cpp (nee llhttpclient_tut.cpp) because they've relied on
particular behaviors from Internet sites not under our control.
We skipped a test that fetches llsd+xml from secondlife.com because
"secondlife.com is not reliable enough for unit tests."
We skipped a test that tries to observe a failure with "http://www.invalid"
because some local ISPs turn "no such domain" DNS errors into valid pages
offering the requester to buy the specified domain name.
Today we've had to skip tests attempting to contact "http://www.google.com"
for reasons we haven't yet diagnosed, but that probably have to do with
Google's IPv6 rollout.
Use local temp server test_llsdmessage_peer.py as the success destination,
eliminating DNS, Internet access and remote server behavior as failure modes.
Use idle localhost port for failure test.
Re-enable all skipped LLHTTPClient tests!
Re-enable on Windows!
In support of these tests, modify test_llsdmessage_peer.py:
Support HEAD as no-data variant of GET.
Change GET result dict to avoid resembling an error response -- confusing.
Make GET/POST return actual dict rather than undecorated string "success".
Because of that last, change llcapabilitylistener_test.cpp and
llsdmessage_test.cpp to extract "reply" key from response rather than
expecting response to be a string itself.

1 files changed, 13 insertions, 6 deletions

diff --git a/indra/llmessage/tests/test_llsdmessage_peer.py b/indra/llmessage/tests/test_llsdmessage_peer.py
index 22edd9dad8..fe4f3a8c01 100644
--- a/indra/llmessage/tests/test_llsdmessage_peer.py
+++ b/indra/llmessage/tests/test_llsdmessage_peer.py
@@ -78,25 +78,32 @@ class TestHTTPRequestHandler(BaseHTTPRequestHandler):
 ##         debug("root node tag %s", tree.getroot().tag)
 ##         return llsd.to_python(tree.getroot())
 
-    def do_GET(self):
+    def do_HEAD(self):
+        self.do_GET(withdata=False)
+
+    def do_GET(self, withdata=True):
         # Of course, don't attempt to read data.
-        self.answer(dict(reply="success", status=500,
-                         reason="Your GET operation requested failure"))
+        data = dict(reply="success", body="avatar", random=17)
+        self.answer(data, withdata=withdata)
 
     def do_POST(self):
         # Read the provided POST data.
         self.answer(self.read_xml())
 
-    def answer(self, data):
+    def answer(self, data, withdata=True):
         debug("%s.answer(%s): self.path = %r", self.__class__.__name__, data, self.path)
         if "fail" not in self.path:
-            response = llsd.format_xml(data.get("reply", llsd.LLSD("success")))
+            data = data.copy()          # we're going to modify
+            # Ensure there's a "reply" key in data, even if there wasn't before
+            data["reply"] = data.get("reply", llsd.LLSD("success"))
+            response = llsd.format_xml(data)
             debug("success: %s", response)
             self.send_response(200)
             self.send_header("Content-type", "application/llsd+xml")
             self.send_header("Content-Length", str(len(response)))
             self.end_headers()
-            self.wfile.write(response)
+            if withdata:
+                self.wfile.write(response)
         else:                           # fail requested
             status = data.get("status", 500)
             # self.responses maps an int status to a (short, long) pair of