21639: Fix tests

Arvados-DCO-1.1-Signed-off-by: Peter Amstutz <peter.amstutz@curii.com>

diff --git a/sdk/python/tests/test_arvfile.py b/sdk/python/tests/test_arvfile.py
index cf6dec1a553eec3e0bbf6b219e11eccfb0ca9b7e..3517d78e170a12c4dd2161f025bddbb5612ed413 100644 (file)
--- a/sdk/python/tests/test_arvfile.py
+++ b/sdk/python/tests/test_arvfile.py
@@ -631,6 +631,7 @@ class ArvadosFileReaderTestCase(StreamFileReaderTestCase):
                 self.blocks = blocks
                 self.nocache = nocache
                 self._keep = ArvadosFileWriterTestCase.MockKeep({})
+                self.prefetch_lookahead = 0
 
             def block_prefetch(self, loc):
                 pass