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# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import unittest
import uuid
from fairseq import metrics
class TestMetrics(unittest.TestCase):
def test_nesting(self):
with metrics.aggregate() as a:
metrics.log_scalar("loss", 1)
with metrics.aggregate() as b:
metrics.log_scalar("loss", 2)
self.assertEqual(a.get_smoothed_values()["loss"], 1.5)
self.assertEqual(b.get_smoothed_values()["loss"], 2)
def test_new_root(self):
with metrics.aggregate() as a:
metrics.log_scalar("loss", 1)
with metrics.aggregate(new_root=True) as b:
metrics.log_scalar("loss", 2)
self.assertEqual(a.get_smoothed_values()["loss"], 1)
self.assertEqual(b.get_smoothed_values()["loss"], 2)
def test_nested_new_root(self):
with metrics.aggregate() as layer1:
metrics.log_scalar("loss", 1)
with metrics.aggregate(new_root=True) as layer2:
metrics.log_scalar("loss", 2)
with metrics.aggregate() as layer3:
metrics.log_scalar("loss", 3)
with metrics.aggregate(new_root=True) as layer4:
metrics.log_scalar("loss", 4)
metrics.log_scalar("loss", 1.5)
self.assertEqual(layer4.get_smoothed_values()["loss"], 4)
self.assertEqual(layer3.get_smoothed_values()["loss"], 3)
self.assertEqual(layer2.get_smoothed_values()["loss"], 2.5)
self.assertEqual(layer1.get_smoothed_values()["loss"], 1.25)
def test_named(self):
name = str(uuid.uuid4())
metrics.reset_meters(name)
with metrics.aggregate(name):
metrics.log_scalar("loss", 1)
metrics.log_scalar("loss", 3)
with metrics.aggregate(name):
metrics.log_scalar("loss", 2)
self.assertEqual(metrics.get_smoothed_values(name)["loss"], 1.5)
def test_nested_duplicate_names(self):
name = str(uuid.uuid4())
metrics.reset_meters(name)
with metrics.aggregate(name):
metrics.log_scalar("loss", 1)
with metrics.aggregate() as other:
with metrics.aggregate(name):
metrics.log_scalar("loss", 2)
metrics.log_scalar("loss", 6)
self.assertEqual(metrics.get_smoothed_values(name)["loss"], 3)
self.assertEqual(other.get_smoothed_values()["loss"], 2)
if __name__ == "__main__":
unittest.main()
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