Files
exercism/python/protein-translation/protein_translation_test.py
2019-07-13 04:18:06 -05:00

77 lines
2.6 KiB
Python

import unittest
from protein_translation import proteins
# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.1
class ProteinTranslationTest(unittest.TestCase):
def test_AUG_translates_to_methionine(self):
self.assertEqual(proteins('AUG'), ['Methionine'])
def test_identifies_Phenylalanine_codons(self):
for codon in ['UUU', 'UUC']:
self.assertEqual(proteins(codon), ['Phenylalanine'])
def test_identifies_Leucine_codons(self):
for codon in ['UUA', 'UUG']:
self.assertEqual(proteins(codon), ['Leucine'])
def test_identifies_Serine_codons(self):
for codon in ['UCU', 'UCC', 'UCA', 'UCG']:
self.assertEqual(proteins(codon), ['Serine'])
def test_identifies_Tyrosine_codons(self):
for codon in ['UAU', 'UAC']:
self.assertEqual(proteins(codon), ['Tyrosine'])
def test_identifies_Cysteine_codons(self):
for codon in ['UGU', 'UGC']:
self.assertEqual(proteins(codon), ['Cysteine'])
def test_identifies_Tryptophan_codons(self):
self.assertEqual(proteins('UGG'), ['Tryptophan'])
def test_identifies_stop_codons(self):
for codon in ['UAA', 'UAG', 'UGA']:
self.assertEqual(proteins(codon), [])
def test_translates_rna_strand_into_correct_protein_list(self):
strand = 'AUGUUUUGG'
expected = ['Methionine', 'Phenylalanine', 'Tryptophan']
self.assertEqual(proteins(strand), expected)
def test_stops_translation_if_stop_codon_at_beginning_of_sequence(self):
strand = 'UAGUGG'
expected = []
self.assertEqual(proteins(strand), expected)
def test_stops_translation_if_stop_codon_at_end_of_two_codon_sequence(
self):
strand = 'UGGUAG'
expected = ['Tryptophan']
self.assertEqual(proteins(strand), expected)
def test_stops_translation_if_stop_codon_at_end_of_three_codon_sequence(
self):
strand = 'AUGUUUUAA'
expected = ['Methionine', 'Phenylalanine']
self.assertEqual(proteins(strand), expected)
def test_stops_translation_if_stop_codon_in_middle_of_three_codon_sequence(
self):
strand = 'UGGUAGUGG'
expected = ['Tryptophan']
self.assertEqual(proteins(strand), expected)
def test_stops_translation_if_stop_codon_in_middle_of_six_codon_sequence(
self):
strand = 'UGGUGUUAUUAAUGGUUU'
expected = ['Tryptophan', 'Cysteine', 'Tyrosine']
self.assertEqual(proteins(strand), expected)
if __name__ == '__main__':
unittest.main()