#! /usr/bin/python
## vim: fileencoding=utf-8

# Copyright (C) 2014 Google, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation, either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

from __future__ import unicode_literals

import re
import sys
import unittest

sys.path.insert(0, '../lib/')

from debian import copyright
from debian import deb822


SIMPLE = """\
Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: X Solitaire
Source: ftp://ftp.example.com/pub/games

Files: *
Copyright: Copyright 1998 John Doe <jdoe@example.com>
License: GPL-2+
 This program is free software; you can redistribute it
 and/or modify it under the terms of the GNU General Public
 License as published by the Free Software Foundation; either
 version 2 of the License, or (at your option) any later
 version.
 .
 This program is distributed in the hope that it will be
 useful, but WITHOUT ANY WARRANTY; without even the implied
 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 PURPOSE.  See the GNU General Public License for more
 details.
 .
 You should have received a copy of the GNU General Public
 License along with this package; if not, write to the Free
 Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 Boston, MA  02110-1301 USA
 .
 On Debian systems, the full text of the GNU General Public
 License version 2 can be found in the file
 `/usr/share/common-licenses/GPL-2'.

Files: debian/*
Copyright: Copyright 1998 Jane Smith <jsmith@example.net>
License: GPL-2+
 [LICENSE TEXT]
"""

GPL_TWO_PLUS_TEXT = """\
This program is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied
warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.  See the GNU General Public License for more
details.

You should have received a copy of the GNU General Public
License along with this package; if not, write to the Free
Software Foundation, Inc., 51 Franklin St, Fifth Floor,
Boston, MA  02110-1301 USA

On Debian systems, the full text of the GNU General Public
License version 2 can be found in the file
`/usr/share/common-licenses/GPL-2'."""

MULTI_LICENSE = """\
Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Project Y

Files: *
Copyright: Copyright 2000 Company A
License: ABC

Files: src/baz.*
Copyright: Copyright 2000 Company A
           Copyright 2001 Company B
License: ABC

Files: debian/*
Copyright: Copyright 2003 Debian Developer <someone@debian.org>
License: 123

Files: debian/rules
Copyright: Copyright 2003 Debian Developer <someone@debian.org>
           Copyright 2004 Someone Else <foo@bar.com>
License: 123

License: ABC
 [ABC TEXT]

License: 123
 [123 TEXT]
"""

FORMAT = 'http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/'


class LineBasedTest(unittest.TestCase):
    """Test for _LineBased.{to,from}_str"""

    def setUp(self):
        # Alias for less typing.
        self.lb = copyright._LineBased

    def test_from_str_none(self):
        self.assertEqual((), self.lb.from_str(None))

    def test_from_str_empty(self):
        self.assertEqual((), self.lb.from_str(''))

    def test_from_str_single_line(self):
        self.assertEqual(
            ('Foo Bar <foo@bar.com>',),
            self.lb.from_str('Foo Bar <foo@bar.com>'))

    def test_from_str_single_value_after_newline(self):
        self.assertEqual(
            ('Foo Bar <foo@bar.com>',),
            self.lb.from_str('\n Foo Bar <foo@bar.com>'))

    def test_from_str_multiline(self):
        self.assertEqual(
            ('Foo Bar <foo@bar.com>', 'http://bar.com/foo'),
            self.lb.from_str('\n Foo Bar <foo@bar.com>\n http://bar.com/foo'))

    def test_to_str_empty(self):
        self.assertIsNone(self.lb.to_str([]))
        self.assertIsNone(self.lb.to_str(()))

    def test_to_str_single(self):
        self.assertEqual(
            'Foo Bar <foo@bar.com>',
            self.lb.to_str(['Foo Bar <foo@bar.com>']))

    def test_to_str_multi_list(self):
        self.assertEqual(
            '\n Foo Bar <foo@bar.com>\n http://bar.com/foo',
            self.lb.to_str(
                ['Foo Bar <foo@bar.com>', 'http://bar.com/foo']))

    def test_to_str_multi_tuple(self):
        self.assertEqual(
            '\n Foo Bar <foo@bar.com>\n http://bar.com/foo',
            self.lb.to_str(
                ('Foo Bar <foo@bar.com>', 'http://bar.com/foo')))

    def test_to_str_empty_value(self):
        with self.assertRaises(ValueError) as cm:
            self.lb.to_str(['foo', '', 'bar'])
        self.assertEqual(('values must not be empty',), cm.exception.args)

    def test_to_str_whitespace_only_value(self):
        with self.assertRaises(ValueError) as cm:
            self.lb.to_str(['foo', ' \t', 'bar'])
        self.assertEqual(('values must not be empty',), cm.exception.args)

    def test_to_str_elements_stripped(self):
        self.assertEqual(
            '\n Foo Bar <foo@bar.com>\n http://bar.com/foo',
            self.lb.to_str(
                (' Foo Bar <foo@bar.com>\t', ' http://bar.com/foo  ')))

    def test_to_str_newlines_single(self):
        with self.assertRaises(ValueError) as cm:
            self.lb.to_str([' Foo Bar <foo@bar.com>\n http://bar.com/foo  '])
        self.assertEqual(
            ('values must not contain newlines',), cm.exception.args)

    def test_to_str_newlines_multi(self):
        with self.assertRaises(ValueError) as cm:
            self.lb.to_str(
                ['bar', ' Foo Bar <foo@bar.com>\n http://bar.com/foo  '])
        self.assertEqual(
            ('values must not contain newlines',), cm.exception.args)


class SpaceSeparatedTest(unittest.TestCase):
    """Tests for _SpaceSeparated.{to,from}_str."""

    def setUp(self):
        # Alias for less typing.
        self.ss = copyright._SpaceSeparated

    def test_from_str_none(self):
        self.assertEqual((), self.ss.from_str(None))

    def test_from_str_empty(self):
        self.assertEqual((), self.ss.from_str(' '))
        self.assertEqual((), self.ss.from_str(''))

    def test_from_str_single(self):
        self.assertEqual(('foo',), self.ss.from_str('foo'))
        self.assertEqual(('bar',), self.ss.from_str(' bar '))

    def test_from_str_multi(self):
        self.assertEqual(('foo', 'bar', 'baz'), self.ss.from_str('foo bar baz'))
        self.assertEqual(
            ('bar', 'baz', 'quux'), self.ss.from_str(' bar baz quux \t '))

    def test_to_str_empty(self):
        self.assertIsNone(self.ss.to_str([]))
        self.assertIsNone(self.ss.to_str(()))

    def test_to_str_single(self):
        self.assertEqual('foo', self.ss.to_str(['foo']))

    def test_to_str_multi(self):
        self.assertEqual('foo bar baz', self.ss.to_str(['foo', 'bar', 'baz']))

    def test_to_str_empty_value(self):
        with self.assertRaises(ValueError) as cm:
            self.ss.to_str(['foo', '', 'bar'])
        self.assertEqual(('values must not be empty',), cm.exception.args)

    def test_to_str_value_has_space_single(self):
        with self.assertRaises(ValueError) as cm:
            self.ss.to_str([' baz quux '])
        self.assertEqual(
            ('values must not contain whitespace',), cm.exception.args)

    def test_to_str_value_has_space_multi(self):
        with self.assertRaises(ValueError) as cm:
            self.ss.to_str(['foo', ' baz quux '])
        self.assertEqual(
            ('values must not contain whitespace',), cm.exception.args)


class CopyrightTest(unittest.TestCase):

    def test_basic_parse_success(self):
        c = copyright.Copyright(sequence=SIMPLE.splitlines())
        self.assertEqual(FORMAT, c.header.format)
        self.assertEqual(FORMAT, c.header['Format'])
        self.assertEqual('X Solitaire', c.header.upstream_name)
        self.assertEqual('X Solitaire', c.header['Upstream-Name'])
        self.assertEqual('ftp://ftp.example.com/pub/games', c.header.source)
        self.assertEqual('ftp://ftp.example.com/pub/games', c.header['Source'])
        self.assertIsNone(c.header.license)

    def test_parse_and_dump(self):
        c = copyright.Copyright(sequence=SIMPLE.splitlines())
        dumped = c.dump()
        self.assertEqual(SIMPLE, dumped)

    def test_all_paragraphs(self):
        c = copyright.Copyright(MULTI_LICENSE.splitlines())
        expected = [c.header] + list(c.all_files_paragraphs()) + \
            list(c.all_license_paragraphs())
        self.assertEqual(expected, list(c.all_paragraphs()))
        self.assertEqual(expected, list(c))

    def test_all_files_paragraphs(self):
        c = copyright.Copyright(sequence=SIMPLE.splitlines())
        self.assertEqual(
            [('*',), ('debian/*',)],
            [fp.files for fp in c.all_files_paragraphs()])

        c = copyright.Copyright()
        self.assertEqual([], list(c.all_files_paragraphs()))

    def test_find_files_paragraph(self):
        c = copyright.Copyright(sequence=SIMPLE.splitlines())
        paragraphs = list(c.all_files_paragraphs())

        self.assertIs(paragraphs[0], c.find_files_paragraph('Makefile'))
        self.assertIs(paragraphs[0], c.find_files_paragraph('src/foo.cc'))
        self.assertIs(paragraphs[1], c.find_files_paragraph('debian/rules'))
        self.assertIs(paragraphs[1], c.find_files_paragraph('debian/a/b.py'))

    def test_find_files_paragraph_some_unmatched(self):
        c = copyright.Copyright()
        files1 = copyright.FilesParagraph.create(
            ['foo/*'], 'CompanyA', copyright.License('ISC'))
        files2 = copyright.FilesParagraph.create(
            ['bar/*'], 'CompanyB', copyright.License('Apache'))
        c.add_files_paragraph(files1)
        c.add_files_paragraph(files2)
        self.assertIs(files1, c.find_files_paragraph('foo/bar.cc'))
        self.assertIs(files2, c.find_files_paragraph('bar/baz.cc'))
        self.assertIsNone(c.find_files_paragraph('baz/quux.cc'))
        self.assertIsNone(c.find_files_paragraph('Makefile'))

    def test_all_license_paragraphs(self):
        c = copyright.Copyright(sequence=SIMPLE.splitlines())
        self.assertEqual([], list(c.all_license_paragraphs()))

        c = copyright.Copyright(MULTI_LICENSE.splitlines())
        self.assertEqual(
            [copyright.License('ABC', '[ABC TEXT]'),
             copyright.License('123', '[123 TEXT]')],
            list(p.license for p in c.all_license_paragraphs()))

        c.add_license_paragraph(copyright.LicenseParagraph.create(
            copyright.License('Foo', '[FOO TEXT]')))
        self.assertEqual(
            [copyright.License('ABC', '[ABC TEXT]'),
             copyright.License('123', '[123 TEXT]'),
             copyright.License('Foo', '[FOO TEXT]')],
            list(p.license for p in c.all_license_paragraphs()))



class MultlineTest(unittest.TestCase):
    """Test cases for format_multiline{,_lines} and parse_multline{,_as_lines}.
    """

    def setUp(self):
        paragraphs = list(deb822.Deb822.iter_paragraphs(SIMPLE.splitlines()))
        self.formatted = paragraphs[1]['License']
        self.parsed = 'GPL-2+\n' + GPL_TWO_PLUS_TEXT
        self.parsed_lines = self.parsed.splitlines()

    def test_format_multiline(self):
        self.assertEqual(None, copyright.format_multiline(None))
        self.assertEqual('Foo', copyright.format_multiline('Foo'))
        self.assertEqual(
            'Foo\n Bar baz\n .\n Quux.',
            copyright.format_multiline('Foo\nBar baz\n\nQuux.'))
        self.assertEqual(
            self.formatted, copyright.format_multiline(self.parsed))

    def test_parse_multiline(self):
        self.assertEqual(None, copyright.parse_multiline(None))
        self.assertEqual('Foo', copyright.parse_multiline('Foo'))
        self.assertEqual(
            'Foo\nBar baz\n\nQuux.',
            copyright.parse_multiline('Foo\n Bar baz\n .\n Quux.'))
        self.assertEqual(
            self.parsed, copyright.parse_multiline(self.formatted))

    def test_format_multiline_lines(self):
        self.assertEqual('', copyright.format_multiline_lines([]))
        self.assertEqual('Foo', copyright.format_multiline_lines(['Foo']))
        self.assertEqual(
            'Foo\n Bar baz\n .\n Quux.',
            copyright.format_multiline_lines(
                ['Foo', 'Bar baz', '', 'Quux.']))
        self.assertEqual(
            self.formatted,
            copyright.format_multiline_lines(self.parsed_lines))

    def test_parse_multiline_as_lines(self):
        self.assertEqual([], copyright.parse_multiline_as_lines(''))
        self.assertEqual(['Foo'], copyright.parse_multiline_as_lines('Foo'))
        self.assertEqual(
            ['Foo', 'Bar baz', '', 'Quux.'],
            copyright.parse_multiline_as_lines(
                'Foo\n Bar baz\n .\n Quux.'))
        self.assertEqual(
            self.parsed_lines,
            copyright.parse_multiline_as_lines(self.formatted))

    def test_parse_format_inverses(self):
        self.assertEqual(
            self.formatted,
            copyright.format_multiline(
                copyright.parse_multiline(self.formatted)))

        self.assertEqual(
            self.formatted,
            copyright.format_multiline_lines(
                copyright.parse_multiline_as_lines(self.formatted)))

        self.assertEqual(
            self.parsed,
            copyright.parse_multiline(
                copyright.format_multiline(self.parsed)))

        self.assertEqual(
            self.parsed_lines,
            copyright.parse_multiline_as_lines(
                copyright.format_multiline_lines(self.parsed_lines)))


class LicenseTest(unittest.TestCase):

    def test_empty_text(self):
        l = copyright.License('GPL-2+')
        self.assertEqual('GPL-2+', l.synopsis)
        self.assertEqual('', l.text)
        self.assertEqual('GPL-2+', l.to_str())

    def test_newline_in_synopsis(self):
        with self.assertRaises(ValueError) as cm:
            copyright.License('foo\n bar')
        self.assertEqual(('must be single line',), cm.exception.args)

    def test_nonempty_text(self):
        text = (
            'Foo bar.\n'
            '\n'
            'Baz.\n'
            'Quux\n'
            '\n'
            'Bang and such.')
        l = copyright.License('GPL-2+', text=text)
        self.assertEqual(text, l.text)
        self.assertEqual(
            ('GPL-2+\n'
             ' Foo bar.\n'
             ' .\n'
             ' Baz.\n'
             ' Quux\n'
             ' .\n'
             ' Bang and such.'),
            l.to_str())

    def test_typical(self):
        paragraphs = list(deb822.Deb822.iter_paragraphs(SIMPLE.splitlines()))
        p = paragraphs[1]
        l = copyright.License.from_str(p['license'])
        self.assertEqual('GPL-2+', l.synopsis)
        self.assertEqual(GPL_TWO_PLUS_TEXT, l.text)
        self.assertEqual(p['license'], l.to_str())


class LicenseParagraphTest(unittest.TestCase):

    def test_properties(self):
        d = deb822.Deb822()
        d['License'] = 'GPL-2'
        lp = copyright.LicenseParagraph(d)
        self.assertEqual('GPL-2', lp['License'])
        self.assertEqual(copyright.License('GPL-2'), lp.license)
        self.assertIsNone(lp.comment)
        lp.comment = "Some comment."
        self.assertEqual("Some comment.", lp.comment)
        self.assertEqual("Some comment.", lp['comment'])

        lp.license = copyright.License('GPL-2+', '[LICENSE TEXT]')
        self.assertEqual(
            copyright.License('GPL-2+', '[LICENSE TEXT]'), lp.license)
        self.assertEqual('GPL-2+\n [LICENSE TEXT]', lp['license'])

        with self.assertRaises(TypeError) as cm:
            lp.license = None
        self.assertEqual(('value must not be None',), cm.exception.args)

    def test_no_license(self):
        d = deb822.Deb822()
        with self.assertRaises(ValueError) as cm:
            copyright.LicenseParagraph(d)
        self.assertEqual(('"License" field required',), cm.exception.args)

    def test_also_has_files(self):
        d = deb822.Deb822()
        d['License'] = 'GPL-2\n [LICENSE TEXT]'
        d['Files'] = '*'
        with self.assertRaises(ValueError) as cm:
            copyright.LicenseParagraph(d)
        self.assertEqual(
            ('input appears to be a Files paragraph',), cm.exception.args)

    def test_try_set_files(self):
        lp = copyright.LicenseParagraph(
            deb822.Deb822({'License': 'GPL-2\n [LICENSE TEXT]'}))
        with self.assertRaises(deb822.RestrictedFieldError):
            lp['Files'] = 'foo/*'

class GlobsToReTest(unittest.TestCase):

    def setUp(self):
        self.flags = re.MULTILINE | re.DOTALL

    def assertReEqual(self, a, b):
        self.assertEqual(a.pattern, b.pattern)
        self.assertEqual(a.flags, b.flags)

    def test_empty(self):
        self.assertReEqual(
            re.compile(r'\Z', self.flags), copyright.globs_to_re([]))

    def test_star(self):
        pat = copyright.globs_to_re(['*'])
        self.assertReEqual(re.compile(r'.*\Z', self.flags), pat)
        self.assertTrue(pat.match('foo'))
        self.assertTrue(pat.match('foo/bar/baz'))

    def test_star_prefix(self):
        e = re.escape
        pat = copyright.globs_to_re(['*.in'])
        expected = re.compile('.*' + e('.in') + r'\Z', self.flags)
        self.assertReEqual(expected, pat)
        self.assertFalse(pat.match('foo'))
        self.assertFalse(pat.match('in'))
        self.assertTrue(pat.match('Makefile.in'))
        self.assertFalse(pat.match('foo/bar/in'))
        self.assertTrue(pat.match('foo/bar/Makefile.in'))

    def test_star_prefix_with_slash(self):
        e = re.escape
        pat = copyright.globs_to_re(['*/Makefile.in'])
        expected = re.compile('.*' + e('/Makefile.in') + r'\Z', self.flags)
        self.assertReEqual(expected, pat)
        self.assertFalse(pat.match('foo'))
        self.assertFalse(pat.match('in'))
        self.assertFalse(pat.match('foo/bar/in'))
        self.assertTrue(pat.match('foo/Makefile.in'))
        self.assertTrue(pat.match('foo/bar/Makefile.in'))

    def test_question_mark(self):
        e = re.escape
        pat = copyright.globs_to_re(['foo/messages.??_??.txt'])
        expected = re.compile(
            e('foo/messages.') + '..' + e('_') + '..' + e('.txt') + r'\Z',
            self.flags)
        self.assertReEqual(expected, pat)
        self.assertFalse(pat.match('messages.en_US.txt'))
        self.assertTrue(pat.match('foo/messages.en_US.txt'))
        self.assertTrue(pat.match('foo/messages.ja_JP.txt'))
        self.assertFalse(pat.match('foo/messages_ja_JP.txt'))

    def test_multi_literal(self):
        e = re.escape
        pat = copyright.globs_to_re(['Makefile.in', 'foo/bar'])
        expected = re.compile(
            e('Makefile.in') + '|' + e('foo/bar') + r'\Z', self.flags)
        self.assertReEqual(expected, pat)
        self.assertTrue(pat.match('Makefile.in'))
        self.assertFalse(pat.match('foo/Makefile.in'))
        self.assertTrue(pat.match('foo/bar'))
        self.assertFalse(pat.match('foo/barbaz'))
        self.assertFalse(pat.match('foo/bar/baz'))
        self.assertFalse(pat.match('a/foo/bar'))

    def test_multi_wildcard(self):
        e = re.escape
        pat = copyright.globs_to_re(
            ['debian/*', '*.Debian', 'translations/fr_??/*'])
        expected = re.compile(
            e('debian/') + '.*|.*' + e('.Debian') + '|' +
            e('translations/fr_') + '..' + e('/') + r'.*\Z',
            self.flags)
        self.assertReEqual(expected, pat)
        self.assertTrue(pat.match('debian/rules'))
        self.assertFalse(pat.match('other/debian/rules'))
        self.assertTrue(pat.match('README.Debian'))
        self.assertTrue(pat.match('foo/bar/README.Debian'))
        self.assertTrue(pat.match('translations/fr_FR/a.txt'))
        self.assertTrue(pat.match('translations/fr_BE/a.txt'))
        self.assertFalse(pat.match('translations/en_US/a.txt'))

    def test_literal_backslash(self):
        e = re.escape
        pat = copyright.globs_to_re([r'foo/bar\\baz.c', r'bar/quux\\'])
        expected = re.compile(
            e(r'foo/bar\baz.c') + '|' + e('bar/quux\\') + r'\Z', self.flags)
        self.assertReEqual(expected, pat)

        self.assertFalse(pat.match('foo/bar.baz.c'))
        self.assertFalse(pat.match('foo/bar/baz.c'))
        self.assertTrue(pat.match(r'foo/bar\baz.c'))
        self.assertFalse(pat.match('bar/quux'))
        self.assertTrue(pat.match('bar/quux\\'))

    def test_illegal_backslash(self):
        with self.assertRaises(ValueError) as cm:
            copyright.globs_to_re([r'foo/a\b.c'])
            self.assertEqual((r'invalid escape sequence: \b',),
                             cm.exception.args)

        with self.assertRaises(ValueError) as cm:
            copyright.globs_to_re('foo/bar\\')
            self.assertEqual(('single backslash not allowed at end',),
                             cm.exception.args)


class FilesParagraphTest(unittest.TestCase):

    def setUp(self):
        self.prototype = deb822.Deb822()
        self.prototype['Files'] = '*'
        self.prototype['Copyright'] = 'Foo'
        self.prototype['License'] = 'ISC'

    def test_files_property(self):
        fp = copyright.FilesParagraph(self.prototype)
        self.assertEqual(('*',), fp.files)

        fp.files = ['debian/*']
        self.assertEqual(('debian/*',), fp.files)
        self.assertEqual('debian/*', fp['files'])

        fp.files = ['src/foo/*', 'src/bar/*']
        self.assertEqual(('src/foo/*', 'src/bar/*'), fp.files)
        self.assertEqual('src/foo/* src/bar/*', fp['files'])

        with self.assertRaises(TypeError):
            fp.files = None

        self.prototype['Files'] = 'foo/*\tbar/*\n\tbaz/*\n quux/*'
        fp = copyright.FilesParagraph(self.prototype)
        self.assertEqual(('foo/*', 'bar/*', 'baz/*', 'quux/*'), fp.files)

    def test_license_property(self):
        fp = copyright.FilesParagraph(self.prototype)
        self.assertEqual(copyright.License('ISC'), fp.license)
        fp.license = copyright.License('ISC', '[LICENSE TEXT]')
        self.assertEqual(copyright.License('ISC', '[LICENSE TEXT]'), fp.license)
        self.assertEqual('ISC\n [LICENSE TEXT]', fp['license'])

        with self.assertRaises(TypeError):
            fp.license = None

    def test_matches(self):
        fp = copyright.FilesParagraph(self.prototype)
        self.assertTrue(fp.matches('foo/bar.cc'))
        self.assertTrue(fp.matches('Makefile'))
        self.assertTrue(fp.matches('debian/rules'))

        fp.files = ['debian/*']
        self.assertFalse(fp.matches('foo/bar.cc'))
        self.assertFalse(fp.matches('Makefile'))
        self.assertTrue(fp.matches('debian/rules'))

        fp.files = ['Makefile', 'foo/*']
        self.assertTrue(fp.matches('foo/bar.cc'))
        self.assertTrue(fp.matches('Makefile'))
        self.assertFalse(fp.matches('debian/rules'))

    def test_create(self):
        fp = copyright.FilesParagraph.create(
            files=['Makefile', 'foo/*'],
            copyright='Copyright 2014 Some Guy',
            license=copyright.License('ISC'))
        self.assertEqual(('Makefile', 'foo/*'), fp.files)
        self.assertEqual('Copyright 2014 Some Guy', fp.copyright)
        self.assertEqual(copyright.License('ISC'), fp.license)

        with self.assertRaises(TypeError):
            copyright.FilesParagraph.create(
                files=['*'], copyright='foo', license=None)

        with self.assertRaises(TypeError):
            copyright.FilesParagraph.create(
                files=['*'], copyright=None, license=copyright.License('ISC'))

        with self.assertRaises(TypeError):
            copyright.FilesParagraph.create(
                files=None, copyright='foo', license=copyright.License('ISC'))


class HeaderTest(unittest.TestCase):

    def test_format_not_none(self):
        h = copyright.Header()
        self.assertEqual(FORMAT, h.format)
        with self.assertRaises(TypeError) as cm:
            h.format = None
        self.assertEqual(('value must not be None',), cm.exception.args)

    def test_upstream_name_single_line(self):
        h = copyright.Header()
        h.upstream_name = 'Foo Bar'
        self.assertEqual('Foo Bar', h.upstream_name)
        with self.assertRaises(ValueError) as cm:
            h.upstream_name = 'Foo Bar\n Baz'
        self.assertEqual(('must be single line',), cm.exception.args)

    def test_upstream_contact_single_read(self):
        data = deb822.Deb822()
        data['Format'] = FORMAT
        data['Upstream-Contact'] = 'Foo Bar <foo@bar.com>'
        h = copyright.Header(data=data)
        self.assertEqual(('Foo Bar <foo@bar.com>',), h.upstream_contact)

    def test_upstream_contact_multi1_read(self):
        data = deb822.Deb822()
        data['Format'] = FORMAT
        data['Upstream-Contact'] = 'Foo Bar <foo@bar.com>\n http://bar.com/foo'
        h = copyright.Header(data=data)
        self.assertEqual(
            ('Foo Bar <foo@bar.com>', 'http://bar.com/foo'),
            h.upstream_contact)

    def test_upstream_contact_multi2_read(self):
        data = deb822.Deb822()
        data['Format'] = FORMAT
        data['Upstream-Contact'] = (
            '\n Foo Bar <foo@bar.com>\n http://bar.com/foo')
        h = copyright.Header(data=data)
        self.assertEqual(
            ('Foo Bar <foo@bar.com>', 'http://bar.com/foo'),
            h.upstream_contact)

    def test_upstream_contact_single_write(self):
        h = copyright.Header()
        h.upstream_contact = ['Foo Bar <foo@bar.com>']
        self.assertEqual(('Foo Bar <foo@bar.com>',), h.upstream_contact)
        self.assertEqual('Foo Bar <foo@bar.com>', h['Upstream-Contact'])

    def test_upstream_contact_multi_write(self):
        h = copyright.Header()
        h.upstream_contact = ['Foo Bar <foo@bar.com>', 'http://bar.com/foo']
        self.assertEqual(
            ('Foo Bar <foo@bar.com>', 'http://bar.com/foo'),
            h.upstream_contact)
        self.assertEqual(
            '\n Foo Bar <foo@bar.com>\n http://bar.com/foo',
            h['upstream-contact'])

    def test_license(self):
        h = copyright.Header()
        self.assertIsNone(h.license)
        l = copyright.License('GPL-2+')
        h.license = l
        self.assertEqual(l, h.license)
        self.assertEqual('GPL-2+', h['license'])

        h.license = None
        self.assertIsNone(h.license)
        self.assertFalse('license' in h)


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