# Copyright 2013 by Peter Cock.  All rights reserved.
# This code is part of the Biopython distribution and governed by its
# license.  Please see the LICENSE file that should have been included
# as part of this package.

import unittest
from Bio._py3k import StringIO

from Bio import SeqIO

from seq_tests_common import compare_record

class TestEmbl(unittest.TestCase):
    def test_annotation1(self):
        """Check parsing of annotation from EMBL files (1)."""
        record = SeqIO.read("EMBL/TRBG361.embl", "embl")
        self.assertEqual(len(record), 1859)
        #Single keyword:
        self.assertEqual(record.annotations["keywords"], ["beta-glucosidase"])

    def test_annotation2(self):
        """Check parsing of annotation from EMBL files (2)."""
        record = SeqIO.read("EMBL/DD231055_edited.embl", "embl")
        self.assertEqual(len(record), 315)
        #Multiple keywords:
        self.assertEqual(record.annotations["keywords"],
                         ['JP 2005522996-A/12', 'test-data',
                          'lot and lots of keywords for this example',
                          'multi-line keywords'])

class TestEmblRewrite(unittest.TestCase):
    def check_rewrite(self, filename):
        old = SeqIO.read(filename, "embl")

        #TODO - Check these properties:
        old.dbxrefs = []
        old.annotations['accessions'] = old.annotations['accessions'][:1]
        del old.annotations['references']

        buffer = StringIO()
        self.assertEqual(1, SeqIO.write(old, buffer, "embl"))
        buffer.seek(0)
        new = SeqIO.read(buffer, "embl")
        
        self.assertTrue(compare_record(old, new))

    def test_annotation1(self):
        """Check writing-and-parsing EMBL file (1)."""
        self.check_rewrite("EMBL/TRBG361.embl")

    def test_annotation2(self):
        """Check writing-and-parsing EMBL file (2)."""
        self.check_rewrite("EMBL/DD231055_edited.embl")

    def test_annotation3(self):
        """Check writing-and-parsing EMBL file (3)."""
        self.check_rewrite("EMBL/AE017046.embl")


if __name__ == "__main__":
    runner = unittest.TextTestRunner(verbosity=2)
    unittest.main(testRunner=runner)