Test update/Fix progress temp save

Edited test to catch readline error. file.py code change in progress
(DOES NOT WORK PROPERLY) so saving it temporarily.

2 files changed, 10 insertions, 3 deletions

diff --git a/paramiko/file.py b/paramiko/file.py
index 0a7fbcba..139c453b 100644
--- a/paramiko/file.py
+++ b/paramiko/file.py
@@ -221,8 +221,8 @@ class BufferedFile (object):
                     # truncate line and return
                     self._rbuffer = line[size:]
                     line = line[:size]
-                    self._pos += len(line)
-                    return line if self._flags & self.FLAG_BINARY else u(line)
+                    #self._pos += len(line)
+                    break#return line if self._flags & self.FLAG_BINARY else u(line)
                 n = size - len(line)
             else:
                 n = self._bufsize
@@ -244,6 +244,11 @@ class BufferedFile (object):
             rpos = line.find(cr_byte)
             if (rpos >= 0) and (rpos < pos or pos < 0):
                 pos = rpos
+        if pos == -1:
+            #self._rbuffer = line[size:]
+            #line = line[:size]
+            self._pos += len(line)
+            return line if self._flags & self.FLAG_BINARY else u(line)
         xpos = pos + 1
         if (line[pos] == cr_byte_value) and (xpos < len(line)) and (line[xpos] == linefeed_byte_value):
             xpos += 1
diff --git a/tests/test_file.py b/tests/test_file.py
index 22a34aca..24a7fa9b 100755
--- a/tests/test_file.py
+++ b/tests/test_file.py
@@ -70,13 +70,15 @@ class BufferedFileTest (unittest.TestCase):
 
     def test_2_readline(self):
         f = LoopbackFile('r+U')
-        f.write(b'First line.\nSecond line.\r\nThird line.\nFinal line non-terminated.')
+        f.write(b'First line.\nSecond line.\r\nThird line.\nFourth line.\nFifth line.\nFinal line non-terminated.')
         self.assertEqual(f.readline(), 'First line.\n')
         # universal newline mode should convert this linefeed:
         self.assertEqual(f.readline(), 'Second line.\n')
         # truncated line:
         self.assertEqual(f.readline(7), 'Third l')
         self.assertEqual(f.readline(), 'ine.\n')
+        self.assertEqual(f.readline(25), 'Fourth line.\n')
+        self.assertEqual(f.readline(), 'Fifth line.\n')
         self.assertEqual(f.readline(), 'Final line non-terminated.')
         self.assertEqual(f.readline(), '')
         f.close()