def test_save_discrepant_positions(self):
sc = SNPsCollection()
sc.load_snps(["tests/input/NCBI36.csv", "tests/input/GRCh37.csv"])
assert len(sc.discrepant_positions) == 4
discrepant_positions_file = sc.save_discrepant_positions()
assert (os.path.relpath(discrepant_positions_file) ==
"output/discrepant_positions.csv")
assert os.path.exists(discrepant_positions_file)
def test_save_discrepant_positions_exception(self):
sc = SNPsCollection()
sc._discrepant_positions = "invalid"
assert not sc.save_discrepant_positions()
def test_save_discrepant_positions_no_discrepant_snps(self):
sc = SNPsCollection()
assert len(sc.discrepant_positions) == 0
assert not sc.save_discrepant_positions()