def test_disk(self):
metric = DiskUsage()
self.assertEqual(metric.result(), 0)
metric.update()
self.assertGreaterEqual(metric.result(), 0)
metric.reset()
self.assertEqual(metric.result(), 0)
def test_standalone_disk_usage(self):
with tempfile.TemporaryDirectory() as tmp_dir:
uut = DiskUsage(tmp_dir)
# Assert result is None when created
self.assertEqual(0, uut.result())
# Base usage
uut.update()
self.assertLessEqual(0, uut.result())
# Assert reset actually resets
uut.reset()
self.assertEqual(0, uut.result())
uut.update()
base_value = uut.result()
with open(str(Path(tmp_dir) / 'blob_file.bin'), "wb") as f:
f.write(os.urandom(512))
# Shouldn't change between calls to update
self.assertEqual(base_value, uut.result())
uut.update()
self.assertLessEqual(base_value, uut.result())