#!/usr/bin/env python

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#  Lawrence Berkeley National Laboratory (subject to receipt of any required
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from io import StringIO

import unittest

from weblogo.seq import protein_alphabet, dna_alphabet
from weblogo.seq_io import nbrf_io, clustal_io, plain_io
from . import data_stream


class test_nbrf_io(unittest.TestCase):
    def test_parse_cox2(self):
        f = data_stream('cox2.nbrf')
        seqs = nbrf_io.read(f)
        self.assertEqual(len(seqs), 5)
        self.assertEqual(len(seqs[1]), 210)
        self.assertEqual(str(seqs[0]),
                         "MAFILSFWMIFLLDSVIVLLSFVCFVCVWICALLFSTVLLVSKLNNIYCTWDFTASKFIDVYWFTIGGMFSLG"
                         "LLLRLCLLLYFGHLNFVSFDLCKVVGFQWYWVYFIFGETTIFSNLILESDYMIGDLRLLQCNHVLTLLSLVIY"
                         "KLWLSAVDVIHSFAISSLGVKVENLVAVMK")
        self.assertEqual(seqs[0].alphabet, protein_alphabet)
        f.close()

    def test_parse_crab(self):
        f = data_stream('crab.nbrf')
        seqs = nbrf_io.read(f)
        self.assertEqual(seqs[0].alphabet, protein_alphabet)
        self.assertEqual(len(seqs), 9)
        self.assertEqual(seqs[2].name, "CRAB_CHICK")
        self.assertEqual(seqs[2].description,
                         "ALPHA CRYSTALLIN B CHAIN (ALPHA(B)-CRYSTALLIN).")
        f.close()

    def test_parse_dna(self):
        f = data_stream('dna.pir')
        seqs = nbrf_io.read(f)
        self.assertEqual(seqs[0].alphabet, dna_alphabet)
        self.assertEqual(len(seqs), 10)
        f.close()

    def test_parse_examples(self):
        f = data_stream('rhod.pir')
        seqs = nbrf_io.read(f)
        self.assertEqual(seqs[0].alphabet, protein_alphabet)
        self.assertEqual(len(seqs), 3)
        f.close()

    def test_parse_protein(self):
        f = data_stream('protein.pir')
        seqs = nbrf_io.read(f)
        self.assertEqual(seqs[0].alphabet, protein_alphabet)
        self.assertEqual(len(seqs), 10)
        f.close()

    def test_parse_clustal_fail(self):
        # should fail with parse error
        f = StringIO(clustal_io.example)
        self.assertRaises(ValueError,
                          nbrf_io.read, f, protein_alphabet)

    def test_parse_plain_fail(self):
        # should fail with parse error
        f = StringIO(plain_io.example)
        self.assertRaises(ValueError,
                          nbrf_io.read, f)

    def test_pir_file_from_clustal(self):
        f = data_stream('clustalw.pir')
        seqs = nbrf_io.read(f)
        self.assertEqual(len(seqs), 2)
        self.assertEqual(seqs[1].endswith(
                'C-AATC-G-CAATG-G--CTTGAACCGGGTAAAAGTCGT-A----------------------------------------'
                '-----------------------------------------'),
                True)
        f.close()

    def test_parse_examples_alphabet(self):
        f = data_stream('rhod.pir')
        seqs = nbrf_io.read(f, alphabet=protein_alphabet)
        self.assertEqual(seqs[0].alphabet, protein_alphabet)
        self.assertEqual(len(seqs), 3)
        f.close()


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