Add test for no-name

Author: rhpvorderman

tests/test_gzip_compliance.py

@@ -898,3 +898,15 @@ def test_decompress_cannot_have_flags_compression(self):
             b'-0/--fast',
             err)
         self.assertEqual(out, b'')
+
+    @create_and_remove_directory(TEMPDIR)
+    def test_compress_no_name(self):
+        args = sys.executable, '-m', 'isal.igzip', '-n'
+        with Popen(args, stdin=PIPE, stdout=PIPE, stderr=PIPE) as proc:
+            out, err = proc.communicate(self.data)
+
+        self.assertEqual(err, b'')
+        self.assertEqual(out[:2], b"\x1f\x8b")
+        # Assert filename and mtime are not stored
+        self.assertFalse(out[4] & gzip.FNAME)
+        self.assertEqual(out[4:8], b"\x00\x00\x00\x00")