mirror of https://github.com/google/oss-fuzz.git
94 lines
2.3 KiB
Python
94 lines
2.3 KiB
Python
#!/usr/bin/python3
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# Copyright 2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Scalar equivalene checker"""
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import os
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import sys
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import atheris
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import numpy as np
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from numpy.testing import assert_array_almost_equal
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import bottleneck as bn
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def gen_random_array(data, fdp = None):
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if fdp is None:
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fdp = atheris.FuzzedDataProvider(data)
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l1 = list()
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for i in range(fdp.ConsumeIntInRange(5, 3000)):
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l1.append(fdp.ConsumeIntInRange(1,10000))
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a = np.array(l1)
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return a
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def TestOneInput(data):
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"""Tests scalar equivalence and also move operations"""
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fdp = atheris.FuzzedDataProvider(data)
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a = gen_random_array(data, fdp)
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func_pairs = [
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(bn.nansum, bn.slow.nansum),
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(bn.nanmean, bn.slow.nanmean),
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(bn.nanstd, bn.slow.nanstd),
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(bn.nanvar, bn.slow.nanvar),
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(bn.nanmin, bn.slow.nanmin),
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(bn.median, bn.slow.median),
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(bn.nanmedian, bn.slow.nanmedian),
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(bn.ss, bn.slow.ss),
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(bn.nanargmin, bn.slow.nanargmin),
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(bn.nanargmax, bn.slow.nanargmax),
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(bn.anynan, bn.slow.anynan),
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(bn.allnan, bn.slow.allnan),
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]
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idx = 0
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for func0, func1 in func_pairs:
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idx = idx + 1
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actual = func0(a)
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desired = func1(a)
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assert_array_almost_equal(
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actual,
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desired,
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err_msg="Failed scalar equivalence"
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)
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# Test move operations
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window = fdp.ConsumeIntInRange(2, 50)
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min_count = fdp.ConsumeIntInRange(1, window)
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actual = bn.move_median(
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a,
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window=window,
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min_count = fdp.ConsumeIntInRange(1,100)
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)
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desired = bn.slow.move_median(
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a,
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window=window,
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min_count=fdp.ConsumeIntInRange(1, 100)
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)
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assert_array_almost_equal(
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actual,
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desired,
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err_msg="Failed move operation"
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)
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def main():
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atheris.instrument_all()
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atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
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atheris.Fuzz()
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if __name__ == "__main__":
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main()
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