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import pytest
from utils import assert_files_equal, FilesDifferent, binomial, datapath
def test_files_different():
with pytest.raises(FileNotFoundError):
assert_files_equal("simple.fasta", "simple.fastq")
with pytest.raises(FilesDifferent):
assert_files_equal(datapath("simple.fasta"), datapath("simple.fastq"))
def test_binomial():
assert binomial(0, 0) == 1
assert binomial(0, 1) == 0
assert binomial(0, -1) == 0
assert binomial(1, 0) == 1
assert binomial(1, 1) == 1
assert binomial(1, 2) == 0
assert binomial(10, 5) == 10 * 9 * 8 * 7 * 6 // (2 * 3 * 4 * 5)
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