--- test_gzip.py	2007-03-07 19:22:42.000000000 +0100
+++ test_gzip.py.new	2007-03-02 15:27:40.000000000 +0100
@@ -91,6 +91,7 @@
             L = f.readline(line_length)
             if L == "" and line_length != 0: break
             self.assert_(len(L) <= line_length)
+            self.assert_(len(L)==line_length or L[-1]=='\n')
             line_length = (line_length + 1) % 50
         f.close()