change return value for dmi data of all \xff to be ""

Previously we returned a string of "." the same length as the dmi field.
That seems confusing to the user as "." would seem like a valid response
when in fact this value should not be considered valid.

So now, in this case, return empty string.

1 files changed, 1 insertions, 1 deletions

diff --git a/tests/unittests/test_util.py b/tests/unittests/test_util.py
index 542e4075..bdee9719 100644
--- a/tests/unittests/test_util.py
+++ b/tests/unittests/test_util.py
@@ -388,7 +388,7 @@ class TestReadDMIData(helpers.FilesystemMockingTestCase):
     def test_dots_returned_instead_of_foxfox(self):
         my_len = 32
         dmi_value = b'\xff' * my_len + b'\n'
-        expected = '.' * my_len
+        expected = ""
         dmi_key = 'system-product-name'
         sysfs_key = 'product_name'
         self._create_sysfs_file(sysfs_key, dmi_value)