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#!/usr/bin/env python
"""Tests for molecular weight.
"""
from unittest import TestCase
from numpy.testing import assert_allclose
from cogent3.data.molecular_weight import ProteinMW, RnaMW
class WeightCalculatorTests(TestCase):
"""Tests for WeightCalculator, which should calculate molecular weights."""
def test_call(self):
"""WeightCalculator should return correct molecular weight"""
r = RnaMW
p = ProteinMW
self.assertEqual(p(""), 0)
self.assertEqual(r(""), 0)
assert_allclose(p("A"), 89.09)
assert_allclose(r("A"), 375.17)
assert_allclose(p("AAA"), 231.27)
assert_allclose(r("AAA"), 1001.59)
assert_allclose(r("AAACCCA"), 2182.37)
assert_allclose(
p(
"MVQQAESLEAESNLPREALDTEEGEFMACSPVALDESDPDWCKTASGHIKRPMNAFMVWSKIERRKIMEQSPDMHNAEISKRLGKR\
WKMLKDSEKIPFIREAERLRLKHMADYPDYKYRPRKKPKMDPSAKPSASQSPEKSAAGGGGGSAGGGAGGAKTSKGSSKKCGKLKA\
PAAAGAKAGAGKAAQSGDYGGAGDDYVLGSLRVSGSGGGGAGKTVKCVFLDEDDDDDDDDDELQLQIKQEPDEEDEEPPHQQLLQP\
PGQQPSQLLRRYNVAKVPASPTLSSSAESPEGASLYDEVRAGATSGAGGGSRLYYSFKNITKQHPPPLAQPALSPASSRSVSTSSS\
SSSGSSSGSSGEDADDLMFDLSLNFSQSAHSASEQQLGGGAAAGNLSLSLVDKDLDSFSEGSLGSHFEFPDYCTPELSEMIAGDWL\
EANFSDLVFTY"
),
46685.97,
)
# run if called from command-line
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