Exemplo n.º 1
0
    def test_strict_chain(self):
        from dj.chain import chain

        class extra_list(list):
            def extra(self, *args, **kwargs):
                raise Exception("extra called")

        books = extra_list(self.books)
        default_media = chain(
            self.Video.objects.all(),
            self.Song.objects.all(),
            books,
        )
        with self.assertRaises(Exception):
            default_media.extra(where=['id IN (2, 4, 6)'])
        strict_media = chain(
            self.Video.objects.all(),
            self.Song.objects.all(),
            books,
            strict=True,
        )
        strict_media_extra = strict_media.extra(where=['id IN (2, 4, 6)'])
        self.assertEqual(strict_media_extra[0].title, 'Baby')
        self.assertEqual(strict_media_extra[1].title, 'Waka Waka')
        self.assertEqual(strict_media_extra[2].title, 'Clocks')
        self.assertEqual(strict_media_extra[3].title, 'Spectrum')
        self.assertEqual(strict_media_extra[4].title, 'A Tale of Two Cities')
        self.assertEqual(strict_media_extra[5].title, 'Don Quixote')
Exemplo n.º 2
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 def test_chain_simple_copy(self):
     from dj.chain import chain
     c = chain((1, 2), [3, 4], "56")
     c.xform = lambda v: int(v)
     c.xfilter = lambda v: int(v) % 2 == 0
     c2 = c.copy(*c.iterables)
     self.test_chain_simple(c2)
Exemplo n.º 3
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 def test_xvalues(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.books)
     media_values = media.values('title')
     self.assertEqual(media_values[0]['title'], 'Gangnam Style')
     self.assertEqual(media_values[1]['title'], 'Baby')
     self.assertEqual(media_values[2]['title'], 'Bad Romance')
     self.assertEqual(media_values[3]['title'], 'Waka Waka')
     self.assertEqual(media_values[4]['title'], 'A Tale of Two Cities')
     self.assertEqual(media_values[5]['title'], 'Don Quixote')
     media_values_list = media.values_list('title', 'author')
     self.assertEqual(media_values_list[0][0], 'Gangnam Style')
     self.assertEqual(media_values_list[0][1], 'Psy')
     self.assertEqual(media_values_list[1][0], 'Baby')
     self.assertEqual(media_values_list[1][1], 'Justin Bieber')
     self.assertEqual(media_values_list[2][0], 'Bad Romance')
     self.assertEqual(media_values_list[2][1], 'Lady Gaga')
     self.assertEqual(media_values_list[3][0], 'Waka Waka')
     self.assertEqual(media_values_list[3][1], 'Shakira')
     self.assertEqual(media_values_list[4][0], 'A Tale of Two Cities')
     self.assertEqual(media_values_list[4][1], 'Charles Dickens')
     self.assertEqual(media_values_list[5][0], 'Don Quixote')
     self.assertEqual(media_values_list[5][1], 'Miguel de Cervantes')
     media_values_list2 = media.values_list('author', flat=True)
     self.assertEqual(media_values_list2[0], 'Psy')
     self.assertEqual(media_values_list2[1], 'Justin Bieber')
     self.assertEqual(media_values_list2[2], 'Lady Gaga')
     self.assertEqual(media_values_list2[3], 'Shakira')
     self.assertEqual(media_values_list2[4], 'Charles Dickens')
     self.assertEqual(media_values_list2[5], 'Miguel de Cervantes')
Exemplo n.º 4
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 def test_basic_chain(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.Song.objects.all())
     self.assertEqual(media.count(), 8)
     self.assertEqual(
         list(media.filter(duration__gt=250)),
         list(
             self.Video.objects.filter(title__in=(
                 'Gangnam Style', 'Bad Romance')).order_by('-title')) +
         list(
             self.Song.objects.filter(
                 title__in=('Clocks', 'Madness')).order_by('title')))
     self.assertEqual(media.filter(duration__gt=250).count(), 4)
     self.assertEqual(
         media.filter(duration__gt=250)[1],
         self.Video.objects.get(title='Bad Romance'))
     self.assertEqual(list(
         media[3:6]), [self.Video.objects.get(title='Waka Waka')] + list(
             self.Song.objects.filter(artist__in=(
                 'Gotye feat. Kimbra', 'Coldplay')).order_by('-artist')))
     self.assertEqual(list(media[1::3]), [
         self.Video.objects.get(title='Baby'),
         self.Song.objects.get(artist='Gotye feat. Kimbra'),
         self.Song.objects.get(title='Spectrum'),
     ])
     self.assertEqual(list(media[:5:4]), [
         self.Video.objects.get(title='Gangnam Style'),
         self.Song.objects.get(artist='Gotye feat. Kimbra'),
     ])
Exemplo n.º 5
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 def test_chain_simple_copy(self):
     from dj.chain import chain
     c = chain((1, 2), [3, 4], "56")
     c.xform = lambda v: int(v)
     c.xfilter = lambda v: int(v) % 2 == 0
     c2 = c.copy(*c.iterables)
     self.test_chain_simple(c2)
Exemplo n.º 6
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 def test_xvalues(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.books)
     media_values = media.values('title')
     self.assertEqual(media_values[0]['title'], 'Gangnam Style')
     self.assertEqual(media_values[1]['title'], 'Baby')
     self.assertEqual(media_values[2]['title'], 'Bad Romance')
     self.assertEqual(media_values[3]['title'], 'Waka Waka')
     self.assertEqual(media_values[4]['title'], 'A Tale of Two Cities')
     self.assertEqual(media_values[5]['title'], 'Don Quixote')
     media_values_list = media.values_list('title', 'author')
     self.assertEqual(media_values_list[0][0], 'Gangnam Style')
     self.assertEqual(media_values_list[0][1], 'Psy')
     self.assertEqual(media_values_list[1][0], 'Baby')
     self.assertEqual(media_values_list[1][1], 'Justin Bieber')
     self.assertEqual(media_values_list[2][0], 'Bad Romance')
     self.assertEqual(media_values_list[2][1], 'Lady Gaga')
     self.assertEqual(media_values_list[3][0], 'Waka Waka')
     self.assertEqual(media_values_list[3][1], 'Shakira')
     self.assertEqual(media_values_list[4][0], 'A Tale of Two Cities')
     self.assertEqual(media_values_list[4][1], 'Charles Dickens')
     self.assertEqual(media_values_list[5][0], 'Don Quixote')
     self.assertEqual(media_values_list[5][1], 'Miguel de Cervantes')
     media_values_list2 = media.values_list('author', flat=True)
     self.assertEqual(media_values_list2[0], 'Psy')
     self.assertEqual(media_values_list2[1], 'Justin Bieber')
     self.assertEqual(media_values_list2[2], 'Lady Gaga')
     self.assertEqual(media_values_list2[3], 'Shakira')
     self.assertEqual(media_values_list2[4], 'Charles Dickens')
     self.assertEqual(media_values_list2[5], 'Miguel de Cervantes')
Exemplo n.º 7
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 def test_basic_chain(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.Song.objects.all())
     self.assertEqual(media.count(), 8)
     self.assertEqual(
         list(media.filter(duration__gt=250)),
         list(self.Video.objects.filter(title__in=('Gangnam Style',
              'Bad Romance')).order_by('-title')) +
         list(self.Song.objects.filter(title__in=('Clocks',
              'Madness')).order_by('title'))
     )
     self.assertEqual(media.filter(duration__gt=250).count(), 4)
     self.assertEqual(
         media.filter(duration__gt=250)[1],
         self.Video.objects.get(title='Bad Romance')
     )
     self.assertEqual(
         list(media[3:6]),
         [self.Video.objects.get(title='Waka Waka')] +
         list(self.Song.objects.filter(artist__in=('Gotye feat. Kimbra',
              'Coldplay')).order_by('-artist'))
     )
     self.assertEqual(list(media[1::3]), [
         self.Video.objects.get(title='Baby'),
         self.Song.objects.get(artist='Gotye feat. Kimbra'),
         self.Song.objects.get(title='Spectrum'),
     ])
     self.assertEqual(list(media[:5:4]), [
         self.Video.objects.get(title='Gangnam Style'),
         self.Song.objects.get(artist='Gotye feat. Kimbra'),
     ])
Exemplo n.º 8
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 def test_chain_sorted_django_factory(self):
     from dj.chain import chain
     c = chain(("8", 1, 2, "8"), [8, 3, 4, 8], "8568")
     c.xform = lambda v: int(v)
     c.xkey = lambda v: -int(v)
     c.xfilter = lambda v: int(v) % 2 == 0
     c2 = c._django_factory("__getitem__", slice(1, 3))
     self.test_chain_sorted(c2)
Exemplo n.º 9
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 def test_chain_sorted_django_factory(self):
     from dj.chain import chain
     c = chain(("8", 1, 2, "8"), [8, 3, 4, 8], "8568")
     c.xform = lambda v: int(v)
     c.xkey = lambda v: -int(v)
     c.xfilter = lambda v: int(v) % 2 == 0
     c2 = c._django_factory("__getitem__", slice(1, 3))
     self.test_chain_sorted(c2)
Exemplo n.º 10
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 def test_heterogenic_sort(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.books)
     title_asc = media.order_by('title')
     self.assertEqual(title_asc[0].title, 'A Tale of Two Cities')
     self.assertEqual(title_asc[1].title, 'Baby')
     self.assertEqual(title_asc[2].title, 'Bad Romance')
     self.assertEqual(title_asc[3].title, 'Don Quixote')
     self.assertEqual(title_asc[4].title, 'Gangnam Style')
     self.assertEqual(title_asc[5].title, 'Waka Waka')
Exemplo n.º 11
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 def test_heterogenic_sort(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.books)
     title_asc = media.order_by('title')
     self.assertEqual(title_asc[0].title, 'A Tale of Two Cities')
     self.assertEqual(title_asc[1].title, 'Baby')
     self.assertEqual(title_asc[2].title, 'Bad Romance')
     self.assertEqual(title_asc[3].title, 'Don Quixote')
     self.assertEqual(title_asc[4].title, 'Gangnam Style')
     self.assertEqual(title_asc[5].title, 'Waka Waka')
Exemplo n.º 12
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    def test_chain_simple(self, c=None):
        from dj.chain import chain
        if not c:
            c = chain((1, 2), [3, 4], "56")
            c.xform = lambda v: int(v)
            c.xfilter = lambda v: int(v) % 2 == 0
        self.assertEqual((2, 4, 6), tuple(c))
        self.assertEqual(3, len(c))
        self.assertEqual((4, 6), tuple(c[1:]))
        self.assertEqual(2, len(c[1:]))
        self.assertEqual((4, 6), tuple(c[1:3]))
        self.assertEqual(2, len(c[1:3]))
        self.assertEqual((2, 4), tuple(c[:2]))
        self.assertEqual(2, len(c[:2]))
        self.assertEqual((2, ), tuple(c[:2:2]))
        self.assertEqual(1, len(c[:2:2]))
        self.assertEqual((2, 6), tuple(c[::2]))
        self.assertEqual(2, len(c[::2]))
        self.assertEqual(6, c[2])

        try:
            c[3]
            self.fail("Index error not raised.")
        except IndexError:
            pass
        c.xfilter = lambda v: True
        self.assertEqual((1, 2, 3, 4, 5, 6), tuple(c))
        self.assertEqual(6, len(c))
        self.assertEqual((5, 6), tuple(c[4:]))
        self.assertEqual(2, len(c[4:]))
        self.assertEqual((3, 4), tuple(c[2:4]))
        self.assertEqual(2, len(c[2:4]))
        self.assertEqual((1, 2, 3, 4), tuple(c[:4]))
        self.assertEqual(4, len(c[:4]))
        self.assertEqual((1, 3), tuple(c[:4:2]))
        self.assertEqual(2, len(c[:4:2]))
        self.assertEqual((1, 4), tuple(c[::3]))
        self.assertEqual(2, len(c[::3]))
        self.assertEqual(6, c[5])
        try:
            c[6]
            self.fail("Index error not raised.")
        except IndexError:
            pass
        try:
            c[-1]
            self.fail("Value error not raised.")
        except ValueError:
            pass
        try:
            c["boo"]
            self.fail("Value error not raised.")
        except ValueError:
            pass
Exemplo n.º 13
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    def test_chain_simple(self, c=None):
        from dj.chain import chain
        if not c:
            c = chain((1, 2), [3, 4], "56")
            c.xform = lambda v: int(v)
            c.xfilter = lambda v: int(v) % 2 == 0
        self.assertEqual((2, 4, 6), tuple(c))
        self.assertEqual(3, len(c))
        self.assertEqual((4, 6), tuple(c[1:]))
        self.assertEqual(2, len(c[1:]))
        self.assertEqual((4, 6), tuple(c[1:3]))
        self.assertEqual(2, len(c[1:3]))
        self.assertEqual((2, 4), tuple(c[:2]))
        self.assertEqual(2, len(c[:2]))
        self.assertEqual((2,), tuple(c[:2:2]))
        self.assertEqual(1, len(c[:2:2]))
        self.assertEqual((2, 6), tuple(c[::2]))
        self.assertEqual(2, len(c[::2]))
        self.assertEqual(6, c[2])

        try:
            c[3]
            self.fail("Index error not raised.")
        except IndexError:
            pass
        c.xfilter = lambda v: True
        self.assertEqual((1, 2, 3, 4, 5, 6), tuple(c))
        self.assertEqual(6, len(c))
        self.assertEqual((5, 6), tuple(c[4:]))
        self.assertEqual(2, len(c[4:]))
        self.assertEqual((3, 4), tuple(c[2:4]))
        self.assertEqual(2, len(c[2:4]))
        self.assertEqual((1, 2, 3, 4), tuple(c[:4]))
        self.assertEqual(4, len(c[:4]))
        self.assertEqual((1, 3), tuple(c[:4:2]))
        self.assertEqual(2, len(c[:4:2]))
        self.assertEqual((1, 4), tuple(c[::3]))
        self.assertEqual(2, len(c[::3]))
        self.assertEqual(6, c[5])
        try:
            c[6]
            self.fail("Index error not raised.")
        except IndexError:
            pass
        try:
            c[-1]
            self.fail("Value error not raised.")
        except ValueError:
            pass
        try:
            c["boo"]
            self.fail("Value error not raised.")
        except ValueError:
            pass
Exemplo n.º 14
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 def test_strict_chain(self):
     from dj.chain import chain
     class extra_list(list):
         def extra(self, *args, **kwargs):
             raise Exception("extra called")
     books = extra_list(self.books)
     default_media = chain(
         self.Video.objects.all(), self.Song.objects.all(), books,
     )
     with self.assertRaises(Exception):
         default_media.extra(where=['id IN (2, 4, 6)'])
     strict_media = chain(
         self.Video.objects.all(), self.Song.objects.all(), books,
         strict=True,
     )
     strict_media_extra = strict_media.extra(where=['id IN (2, 4, 6)'])
     self.assertEqual(strict_media_extra[0].title, 'Baby')
     self.assertEqual(strict_media_extra[1].title, 'Waka Waka')
     self.assertEqual(strict_media_extra[2].title, 'Clocks')
     self.assertEqual(strict_media_extra[3].title, 'Spectrum')
     self.assertEqual(strict_media_extra[4].title, 'A Tale of Two Cities')
     self.assertEqual(strict_media_extra[5].title, 'Don Quixote')
Exemplo n.º 15
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 def test_collective_sort(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.Song.objects.all())
     dur_asc = media.order_by('duration')
     self.assertEqual(dur_asc[0].duration, 211)
     self.assertEqual(dur_asc[1].duration, 218)
     self.assertEqual(dur_asc[2].duration, 225)
     self.assertEqual(dur_asc[3].duration, 244)
     self.assertEqual(dur_asc[4].duration, 253)
     self.assertEqual(dur_asc[5].duration, 279)
     self.assertEqual(dur_asc[6].duration, 307)
     self.assertEqual(dur_asc[7].duration, 308)
     dur_desc = media.order_by('-duration')
     self.assertEqual(dur_desc[7].duration, 211)
     self.assertEqual(dur_desc[6].duration, 218)
     self.assertEqual(dur_desc[5].duration, 225)
     self.assertEqual(dur_desc[4].duration, 244)
     self.assertEqual(dur_desc[3].duration, 253)
     self.assertEqual(dur_desc[2].duration, 279)
     self.assertEqual(dur_desc[1].duration, 307)
     self.assertEqual(dur_desc[0].duration, 308)
     title_asc = media.order_by('title')
     self.assertEqual(title_asc[0].title, 'Baby')
     self.assertEqual(title_asc[1].title, 'Bad Romance')
     self.assertEqual(title_asc[2].title, 'Clocks')
     self.assertEqual(title_asc[3].title, 'Gangnam Style')
     self.assertEqual(title_asc[4].title, 'Madness')
     self.assertEqual(title_asc[5].title, 'Somebody That I Used to Know')
     self.assertEqual(title_asc[6].title, 'Spectrum')
     self.assertEqual(title_asc[7].title, 'Waka Waka')
     title_desc = media.order_by('-title')
     self.assertEqual(title_desc[7].title, 'Baby')
     self.assertEqual(title_desc[6].title, 'Bad Romance')
     self.assertEqual(title_desc[5].title, 'Clocks')
     self.assertEqual(title_desc[4].title, 'Gangnam Style')
     self.assertEqual(title_desc[3].title, 'Madness')
     self.assertEqual(title_desc[2].title, 'Somebody That I Used to Know')
     self.assertEqual(title_desc[1].title, 'Spectrum')
     self.assertEqual(title_desc[0].title, 'Waka Waka')
Exemplo n.º 16
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 def test_collective_sort(self):
     from dj.chain import chain
     media = chain(self.Video.objects.all(), self.Song.objects.all())
     dur_asc = media.order_by('duration')
     self.assertEqual(dur_asc[0].duration, 211)
     self.assertEqual(dur_asc[1].duration, 218)
     self.assertEqual(dur_asc[2].duration, 225)
     self.assertEqual(dur_asc[3].duration, 244)
     self.assertEqual(dur_asc[4].duration, 253)
     self.assertEqual(dur_asc[5].duration, 279)
     self.assertEqual(dur_asc[6].duration, 307)
     self.assertEqual(dur_asc[7].duration, 308)
     dur_desc = media.order_by('-duration')
     self.assertEqual(dur_desc[7].duration, 211)
     self.assertEqual(dur_desc[6].duration, 218)
     self.assertEqual(dur_desc[5].duration, 225)
     self.assertEqual(dur_desc[4].duration, 244)
     self.assertEqual(dur_desc[3].duration, 253)
     self.assertEqual(dur_desc[2].duration, 279)
     self.assertEqual(dur_desc[1].duration, 307)
     self.assertEqual(dur_desc[0].duration, 308)
     title_asc = media.order_by('title')
     self.assertEqual(title_asc[0].title, 'Baby')
     self.assertEqual(title_asc[1].title, 'Bad Romance')
     self.assertEqual(title_asc[2].title, 'Clocks')
     self.assertEqual(title_asc[3].title, 'Gangnam Style')
     self.assertEqual(title_asc[4].title, 'Madness')
     self.assertEqual(title_asc[5].title, 'Somebody That I Used to Know')
     self.assertEqual(title_asc[6].title, 'Spectrum')
     self.assertEqual(title_asc[7].title, 'Waka Waka')
     title_desc = media.order_by('-title')
     self.assertEqual(title_desc[7].title, 'Baby')
     self.assertEqual(title_desc[6].title, 'Bad Romance')
     self.assertEqual(title_desc[5].title, 'Clocks')
     self.assertEqual(title_desc[4].title, 'Gangnam Style')
     self.assertEqual(title_desc[3].title, 'Madness')
     self.assertEqual(title_desc[2].title, 'Somebody That I Used to Know')
     self.assertEqual(title_desc[1].title, 'Spectrum')
     self.assertEqual(title_desc[0].title, 'Waka Waka')