Issue #1580738. When HTTPConnection reads the whole stream with read(),

it closes itself.  When the stream is read in several calls to read(n),
it should behave in the same way if HTTPConnection knows where the end
of the stream is (through self.length).  Added a test case for this
behaviour.

Lib/httplib.py

@@ -530,7 +530,8 @@ class HTTPResponse:
         s = self.fp.read(amt)
         if self.length is not None:
             self.length -= len(s)
-
+            if not self.length:
+                self.close()
         return s
 
     def _read_chunked(self, amt):

Lib/test/test_httplib.py

@@ -81,13 +81,25 @@ class BasicTest(TestCase):
         resp = httplib.HTTPResponse(sock)
         resp.begin()
         self.assertEqual(resp.read(), 'Text')
-        resp.close()
+        self.assertTrue(resp.isclosed())
 
         body = "HTTP/1.1 400.100 Not Ok\r\n\r\nText"
         sock = FakeSocket(body)
         resp = httplib.HTTPResponse(sock)
         self.assertRaises(httplib.BadStatusLine, resp.begin)
 
+    def test_partial_reads(self):
+        # if we have a lenght, the system knows when to close itself
+        # same behaviour than when we read the whole thing with read()
+        body = "HTTP/1.1 200 Ok\r\nContent-Length: 4\r\n\r\nText"
+        sock = FakeSocket(body)
+        resp = httplib.HTTPResponse(sock)
+        resp.begin()
+        self.assertEqual(resp.read(2), 'Te')
+        self.assertFalse(resp.isclosed())
+        self.assertEqual(resp.read(2), 'xt')
+        self.assertTrue(resp.isclosed())
+
     def test_host_port(self):
         # Check invalid host_port
 
@@ -133,7 +145,6 @@ class BasicTest(TestCase):
         resp.begin()
         if resp.read() != "":
             self.fail("Did not expect response from HEAD request")
-        resp.close()
 
     def test_send_file(self):
         expected = 'GET /foo HTTP/1.1\r\nHost: example.com\r\n' \