def test_rewrite_on_empty_file(self):
keep = ArvadosFileWriterTestCase.MockKeep({})
with Collection('. ' + arvados.config.EMPTY_BLOCK_LOCATOR + ' 0:0:count.txt',
def test_rewrite_on_empty_file(self):
keep = ArvadosFileWriterTestCase.MockKeep({})
with Collection('. ' + arvados.config.EMPTY_BLOCK_LOCATOR + ' 0:0:count.txt',