Fix chunked request detection

The response to http://site.api.espn.com/apis/site/v2/sports/basketball/mens-college-basketball/scoreboard
has an extra space between Transfer-Encoding: and chunked so the
comparison fails.

Fixes #64

Author: tannewt

adafruit_requests.py

@@ -293,7 +293,7 @@ def _parse_headers(self):
                     len(title) == len("transfer-encoding")
                     and title.lower() == "transfer-encoding"
                 ):
-                    self._chunked = content.lower() == "chunked"
+                    self._chunked = content.strip().lower() == "chunked"
                 self._headers[title] = content
 
     @property

tests/chunk_test.py

@@ -11,6 +11,7 @@
 path = "/testwifi/index.html"
 text = b"This is a test of Adafruit WiFi!\r\nIf you can read this, its working :)"
 headers = b"HTTP/1.0 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n"
+headers_extra_space = b"HTTP/1.0 200 OK\r\nTransfer-Encoding:  chunked\r\n\r\n"
 
 
 def _chunk(response, split, extra=b""):
@@ -111,3 +112,33 @@ def test_close_flush():
 
 def test_close_flush_extra():
     do_test_close_flush(b";blahblah; blah")
+
+
+def do_test_get_text_extra_space(extra=b""):
+    pool = mocket.MocketPool()
+    pool.getaddrinfo.return_value = ((None, None, None, None, (ip, 80)),)
+    c = _chunk(text, 33, extra)
+    print(c)
+    sock = mocket.Mocket(headers_extra_space + c)
+    pool.socket.return_value = sock
+
+    s = adafruit_requests.Session(pool)
+    r = s.get("http://" + host + path)
+
+    sock.connect.assert_called_once_with((ip, 80))
+
+    sock.send.assert_has_calls(
+        [
+            mock.call(b"GET"),
+            mock.call(b" /"),
+            mock.call(b"testwifi/index.html"),
+            mock.call(b" HTTP/1.1\r\n"),
+        ]
+    )
+    sock.send.assert_has_calls(
+        [
+            mock.call(b"Host: "),
+            mock.call(b"wifitest.adafruit.com"),
+        ]
+    )
+    assert r.text == str(text, "utf-8")