python_testing_solutions.md

From amino acids part one

assert get_aa_percentage("MSRSLLLRFLLFLLLLPPLP", "M") == 5
assert get_aa_percentage("MSRSLLLRFLLFLLLLPPLP", "r") == 10
assert get_aa_percentage("msrslllrfllfllllpplp", "L") == 50
assert get_aa_percentage("MSRSLLLRFLLFLLLLPPLP", "Y") == 0

From amino acids part two

assert get_aa_percentage("MSRSLLLRFLLFLLLLPPLP", ["M"]) == 5
assert get_aa_percentage("MSRSLLLRFLLFLLLLPPLP", ['M', 'L']) == 55
assert get_aa_percentage("MSRSLLLRFLLFLLLLPPLP", ['F', 'S', 'L']) == 70
assert get_aa_percentage("MSRSLLLRFLLFLLLLPPLP") == 65

Example from the slides

from __future__ import division

import unittest

def get_at_content(dna, sig_figs=2):
    length = len(dna)
    a_count = dna.upper().count('A')
    t_count = dna.upper().count('T')
    at_content = (a_count + t_count) / length
    return round(at_content, sig_figs)



class TestATContent(unittest.TestCase):

    def test_single_base(self):
        self.assertEqual(get_at_content("A"), 1)

    def test_lowercase(self):
		self.assertEqual(get_at_content("agtc"), 0.5)

if __name__ == '__main__':
    unittest.main()