add MultiDict

This commit introduces MultiDict, a multi-dictionary similar to
ODict, but with improved semantics (as in the Headers class).
MultiDict fixes a few issues that were present in the Request/Response
API. In particular, `request.cookies["foo"] = "bar"` has previously been a
no-op, as the cookies property returned a mutable _copy_ of the cookies.

1 files changed, 3 insertions, 3 deletions

diff --git a/test/netlib/http/http2/test_connections.py b/test/netlib/http/http2/test_connections.py
index 7b003067..7d240c0e 100644
--- a/test/netlib/http/http2/test_connections.py
+++ b/test/netlib/http/http2/test_connections.py
@@ -312,7 +312,7 @@ class TestReadRequest(tservers.ServerTestBase):
         req = protocol.read_request(NotImplemented)
 
         assert req.stream_id
-        assert req.headers.fields == [[b':method', b'GET'], [b':path', b'/'], [b':scheme', b'https']]
+        assert req.headers.fields == ((b':method', b'GET'), (b':path', b'/'), (b':scheme', b'https'))
         assert req.content == b'foobar'
 
 
@@ -418,7 +418,7 @@ class TestReadResponse(tservers.ServerTestBase):
         assert resp.http_version == "HTTP/2.0"
         assert resp.status_code == 200
         assert resp.reason == ''
-        assert resp.headers.fields == [[b':status', b'200'], [b'etag', b'foobar']]
+        assert resp.headers.fields == ((b':status', b'200'), (b'etag', b'foobar'))
         assert resp.content == b'foobar'
         assert resp.timestamp_end
 
@@ -445,7 +445,7 @@ class TestReadEmptyResponse(tservers.ServerTestBase):
         assert resp.http_version == "HTTP/2.0"
         assert resp.status_code == 200
         assert resp.reason == ''
-        assert resp.headers.fields == [[b':status', b'200'], [b'etag', b'foobar']]
+        assert resp.headers.fields == ((b':status', b'200'), (b'etag', b'foobar'))
         assert resp.content == b''