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dp_event_builder_test.py
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dp_event_builder_test.py
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# Copyright 2021, The TensorFlow Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Tests for DpEventBuilder."""
from absl.testing import absltest
from dp_accounting import dp_event
from dp_accounting import dp_event_builder
_gaussian_event = dp_event.GaussianDpEvent(1.0)
_laplace_event = dp_event.LaplaceDpEvent(1.0)
_poisson_event = dp_event.PoissonSampledDpEvent(_gaussian_event, 0.1)
_self_composed_event = dp_event.SelfComposedDpEvent(_gaussian_event, 3)
class DpEventBuilderTest(absltest.TestCase):
def test_no_op(self):
builder = dp_event_builder.DpEventBuilder()
self.assertEqual(dp_event.NoOpDpEvent(), builder.build())
def test_single_gaussian(self):
builder = dp_event_builder.DpEventBuilder()
builder.compose(_gaussian_event)
self.assertEqual(_gaussian_event, builder.build())
def test_single_laplace(self):
builder = dp_event_builder.DpEventBuilder()
builder.compose(_laplace_event)
self.assertEqual(_laplace_event, builder.build())
def test_compose_no_op(self):
builder = dp_event_builder.DpEventBuilder()
builder.compose(dp_event.NoOpDpEvent())
builder.compose(_gaussian_event)
builder.compose(dp_event.NoOpDpEvent())
self.assertEqual(_gaussian_event, builder.build())
def test_compose_self(self):
builder = dp_event_builder.DpEventBuilder()
builder.compose(_gaussian_event)
builder.compose(_gaussian_event, 2)
self.assertEqual(_self_composed_event, builder.build())
def test_compose_heterogenous(self):
builder = dp_event_builder.DpEventBuilder()
builder.compose(_poisson_event)
builder.compose(_gaussian_event)
builder.compose(_gaussian_event, 2)
builder.compose(_poisson_event)
expected_event = dp_event.ComposedDpEvent(
[_poisson_event, _self_composed_event, _poisson_event])
self.assertEqual(expected_event, builder.build())
def test_compose_composed(self):
builder = dp_event_builder.DpEventBuilder()
composed_event = dp_event.ComposedDpEvent(
[_gaussian_event, _poisson_event, _self_composed_event])
builder.compose(_gaussian_event)
builder.compose(composed_event)
builder.compose(composed_event, 2)
builder.compose(_poisson_event)
builder.compose(_poisson_event)
expected_event = dp_event.ComposedDpEvent([
_gaussian_event,
dp_event.SelfComposedDpEvent(composed_event, 3),
dp_event.SelfComposedDpEvent(_poisson_event, 2)
])
self.assertEqual(expected_event, builder.build())
if __name__ == '__main__':
absltest.main()