def test_translation_ends_at_stop_codon(self):
result = translate_dna('acgTAGtc')
expected = 'T*'
self.assertEqual(result, expected)
result = translate_dna('TAA')
expected = '_'
self.assertEqual(result, expected)
result = translate_dna('ACGCACTATGAGTGA')
expected = 'THYE_'
self.assertEqual(result, expected)
def translate():
data = request.json
dna_sequence = data['dna_sequence']
if not is_valid_dna_sequence(dna_sequence):
raise UnprocessableEntity('DNA character not recognised')
try:
protein_sequence = translate_dna(dna_sequence)
except ValueError as exception:
raise UnprocessableEntity(str(exception))
return protein_sequence
def test_unknown_codon(self):
with self.assertRaises(ValueError):
translate_dna('ACGXACGG')
def test_not_multiple_of_three(self):
result = translate_dna('acgCACtc')
expected = 'TH'
self.assertEqual(result, expected)
def test_lower_case(self):
result = translate_dna('acgCACtca')
expected = 'THS'
self.assertEqual(result, expected)