# Copyright 2011 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.
"""Simple 'print-and-compare' unit test for fasta-m10 parser.

Created to check for any regressions from my new implementation of the
parser.
"""
from __future__ import print_function

import os
from Bio import AlignIO

# test_files is a list of tuples containing:
# - string:  file format
# - integer: number of sequences per alignment
# - integer: number of alignments
# - string:  relative filename
#
# Most of the input files are also used by test_SeqIO.py,
# and by other additional tests as noted below.
test_files = [
    ("fasta-m10", 2, 4, 'Fasta/output001.m10'),
    ("fasta-m10", 2, 6, 'Fasta/output002.m10'),
    ("fasta-m10", 2, 3, 'Fasta/output003.m10'),
    ("fasta-m10", 2, 1, 'Fasta/output004.m10'),
    ("fasta-m10", 2, 1, 'Fasta/output005.m10'),
    ("fasta-m10", 2, 1, 'Fasta/output006.m10'),
    ("fasta-m10", 2, 9, 'Fasta/output007.m10'),
    ("fasta-m10", 2, 12, 'Fasta/output008.m10'),
    ]

# Main tests...
for (t_format, t_per, t_count, t_filename) in test_files:
    assert t_format == "fasta-m10" and t_per == 2

    print("Testing reading %s format file %s with %i alignments"
          % (t_format, t_filename, t_count))
    assert os.path.isfile(t_filename), t_filename

    # Try as an iterator using handle
    with open(t_filename, "r") as handle:
        alignments = list(AlignIO.parse(handle, format=t_format))
    assert len(alignments) == t_count, \
         "Found %i alignments but expected %i" % (len(alignments), t_count)
    for alignment in alignments:
        assert len(alignment) == t_per, \
            "Expected %i records per alignment, got %i" \
            % (t_per, len(alignment))

    # Print the alignment
    for i, alignment in enumerate(alignments):
        print("="*78)
        print("Alignment %i, with %i sequences of length %i"
              % (i,
                 len(alignment),
                 alignment.get_alignment_length()))
        for k in sorted(alignment._annotations):
            print(" - %s: %r" % (k, alignment._annotations[k]))
        assert alignment[0].name == "query"
        assert alignment[1].name == "match"
        # Show each sequence row horizontally
        for record in alignment:
            print("-"*78)
            print(record.id)
            print(record.description)
            print(repr(record.seq))
            assert not record.features
            assert not record.letter_annotations
            for k in sorted(record.annotations):
                print(" - %s: %r" % (k, record.annotations[k]))
    print("="*78)
print("Finished tested reading files")
