import inspect
import os
from functools import partial, wraps

from asgiref.local import Local

from django.template import Context, Template, TemplateSyntaxError
from django.test import SimpleTestCase, override_settings
from django.utils import translation
from django.utils.safestring import mark_safe
from django.utils.translation import trans_real

from ...utils import setup as base_setup
from .base import MultipleLocaleActivationTestCase, extended_locale_paths, here


def setup(templates, *args, **kwargs):
    blocktranslate_setup = base_setup(templates, *args, **kwargs)
    blocktrans_setup = base_setup({
        name: template.replace(
            '{% blocktranslate ', '{% blocktrans '
        ).replace(
            '{% endblocktranslate %}', '{% endblocktrans %}'
        )
        for name, template in templates.items()
    })

    tags = {
        'blocktrans': blocktrans_setup,
        'blocktranslate': blocktranslate_setup,
    }

    def decorator(func):
        @wraps(func)
        def inner(self, *args):
            signature = inspect.signature(func)
            for tag_name, setup_func in tags.items():
                if 'tag_name' in signature.parameters:
                    setup_func(partial(func, tag_name=tag_name))(self)
                else:
                    setup_func(func)(self)
        return inner
    return decorator


class I18nBlockTransTagTests(SimpleTestCase):
    libraries = {'i18n': 'django.templatetags.i18n'}

    @setup({'i18n03': '{% load i18n %}{% blocktranslate %}{{ anton }}{% endblocktranslate %}'})
    def test_i18n03(self):
        """simple translation of a variable"""
        output = self.engine.render_to_string('i18n03', {'anton': 'Å'})
        self.assertEqual(output, 'Å')

    @setup({'i18n04': '{% load i18n %}{% blocktranslate with berta=anton|lower %}{{ berta }}{% endblocktranslate %}'})
    def test_i18n04(self):
        """simple translation of a variable and filter"""
        output = self.engine.render_to_string('i18n04', {'anton': 'Å'})
        self.assertEqual(output, 'å')

    @setup({'legacyi18n04': '{% load i18n %}'
                            '{% blocktranslate with anton|lower as berta %}{{ berta }}{% endblocktranslate %}'})
    def test_legacyi18n04(self):
        """simple translation of a variable and filter"""
        output = self.engine.render_to_string('legacyi18n04', {'anton': 'Å'})
        self.assertEqual(output, 'å')

    @setup({'i18n05': '{% load i18n %}{% blocktranslate %}xxx{{ anton }}xxx{% endblocktranslate %}'})
    def test_i18n05(self):
        """simple translation of a string with interpolation"""
        output = self.engine.render_to_string('i18n05', {'anton': 'yyy'})
        self.assertEqual(output, 'xxxyyyxxx')

    @setup({'i18n07': '{% load i18n %}'
                      '{% blocktranslate count counter=number %}singular{% plural %}'
                      '{{ counter }} plural{% endblocktranslate %}'})
    def test_i18n07(self):
        """translation of singular form"""
        output = self.engine.render_to_string('i18n07', {'number': 1})
        self.assertEqual(output, 'singular')

    @setup({'legacyi18n07': '{% load i18n %}'
                            '{% blocktranslate count number as counter %}singular{% plural %}'
                            '{{ counter }} plural{% endblocktranslate %}'})
    def test_legacyi18n07(self):
        """translation of singular form"""
        output = self.engine.render_to_string('legacyi18n07', {'number': 1})
        self.assertEqual(output, 'singular')

    @setup({'i18n08': '{% load i18n %}'
                      '{% blocktranslate count number as counter %}singular{% plural %}'
                      '{{ counter }} plural{% endblocktranslate %}'})
    def test_i18n08(self):
        """translation of plural form"""
        output = self.engine.render_to_string('i18n08', {'number': 2})
        self.assertEqual(output, '2 plural')

    @setup({'legacyi18n08': '{% load i18n %}'
                            '{% blocktranslate count counter=number %}singular{% plural %}'
                            '{{ counter }} plural{% endblocktranslate %}'})
    def test_legacyi18n08(self):
        """translation of plural form"""
        output = self.engine.render_to_string('legacyi18n08', {'number': 2})
        self.assertEqual(output, '2 plural')

    @setup({'i18n17': '{% load i18n %}'
                      '{% blocktranslate with berta=anton|escape %}{{ berta }}{% endblocktranslate %}'})
    def test_i18n17(self):
        """
        Escaping inside blocktranslate and translate works as if it was
        directly in the template.
        """
        output = self.engine.render_to_string('i18n17', {'anton': 'α & β'})
        self.assertEqual(output, 'α & β')

    @setup({'i18n18': '{% load i18n %}'
                      '{% blocktranslate with berta=anton|force_escape %}{{ berta }}{% endblocktranslate %}'})
    def test_i18n18(self):
        output = self.engine.render_to_string('i18n18', {'anton': 'α & β'})
        self.assertEqual(output, 'α & β')

    @setup({'i18n19': '{% load i18n %}{% blocktranslate %}{{ andrew }}{% endblocktranslate %}'})
    def test_i18n19(self):
        output = self.engine.render_to_string('i18n19', {'andrew': 'a & b'})
        self.assertEqual(output, 'a & b')

    @setup({'i18n21': '{% load i18n %}{% blocktranslate %}{{ andrew }}{% endblocktranslate %}'})
    def test_i18n21(self):
        output = self.engine.render_to_string('i18n21', {'andrew': mark_safe('a & b')})
        self.assertEqual(output, 'a & b')

    @setup({'legacyi18n17': '{% load i18n %}'
                            '{% blocktranslate with anton|escape as berta %}{{ berta }}{% endblocktranslate %}'})
    def test_legacyi18n17(self):
        output = self.engine.render_to_string('legacyi18n17', {'anton': 'α & β'})
        self.assertEqual(output, 'α & β')

    @setup({'legacyi18n18': '{% load i18n %}'
                            '{% blocktranslate with anton|force_escape as berta %}'
                            '{{ berta }}{% endblocktranslate %}'})
    def test_legacyi18n18(self):
        output = self.engine.render_to_string('legacyi18n18', {'anton': 'α & β'})
        self.assertEqual(output, 'α & β')

    @setup({'i18n26': '{% load i18n %}'
                      '{% blocktranslate with extra_field=myextra_field count counter=number %}'
                      'singular {{ extra_field }}{% plural %}plural{% endblocktranslate %}'})
    def test_i18n26(self):
        """
        translation of plural form with extra field in singular form (#13568)
        """
        output = self.engine.render_to_string('i18n26', {'myextra_field': 'test', 'number': 1})
        self.assertEqual(output, 'singular test')

    @setup({'legacyi18n26': '{% load i18n %}'
                            '{% blocktranslate with myextra_field as extra_field count number as counter %}'
                            'singular {{ extra_field }}{% plural %}plural{% endblocktranslate %}'})
    def test_legacyi18n26(self):
        output = self.engine.render_to_string('legacyi18n26', {'myextra_field': 'test', 'number': 1})
        self.assertEqual(output, 'singular test')

    @setup({'i18n27': '{% load i18n %}{% blocktranslate count counter=number %}'
                      '{{ counter }} result{% plural %}{{ counter }} results'
                      '{% endblocktranslate %}'})
    def test_i18n27(self):
        """translation of singular form in Russian (#14126)"""
        with translation.override('ru'):
            output = self.engine.render_to_string('i18n27', {'number': 1})
        self.assertEqual(output, '1 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442')

    @setup({'legacyi18n27': '{% load i18n %}'
                            '{% blocktranslate count number as counter %}{{ counter }} result'
                            '{% plural %}{{ counter }} results{% endblocktranslate %}'})
    def test_legacyi18n27(self):
        with translation.override('ru'):
            output = self.engine.render_to_string('legacyi18n27', {'number': 1})
        self.assertEqual(output, '1 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442')

    @setup({'i18n28': '{% load i18n %}'
                      '{% blocktranslate with a=anton b=berta %}{{ a }} + {{ b }}{% endblocktranslate %}'})
    def test_i18n28(self):
        """simple translation of multiple variables"""
        output = self.engine.render_to_string('i18n28', {'anton': 'α', 'berta': 'β'})
        self.assertEqual(output, 'α + β')

    @setup({'legacyi18n28': '{% load i18n %}'
                            '{% blocktranslate with anton as a and berta as b %}'
                            '{{ a }} + {{ b }}{% endblocktranslate %}'})
    def test_legacyi18n28(self):
        output = self.engine.render_to_string('legacyi18n28', {'anton': 'α', 'berta': 'β'})
        self.assertEqual(output, 'α + β')

    # blocktranslate handling of variables which are not in the context.
    # this should work as if blocktranslate was not there (#19915)
    @setup({'i18n34': '{% load i18n %}{% blocktranslate %}{{ missing }}{% endblocktranslate %}'})
    def test_i18n34(self):
        output = self.engine.render_to_string('i18n34')
        if self.engine.string_if_invalid:
            self.assertEqual(output, 'INVALID')
        else:
            self.assertEqual(output, '')

    @setup({'i18n34_2': '{% load i18n %}{% blocktranslate with a=\'α\' %}{{ missing }}{% endblocktranslate %}'})
    def test_i18n34_2(self):
        output = self.engine.render_to_string('i18n34_2')
        if self.engine.string_if_invalid:
            self.assertEqual(output, 'INVALID')
        else:
            self.assertEqual(output, '')

    @setup({'i18n34_3': '{% load i18n %}{% blocktranslate with a=anton %}{{ missing }}{% endblocktranslate %}'})
    def test_i18n34_3(self):
        output = self.engine.render_to_string(
            'i18n34_3', {'anton': '\xce\xb1'})
        if self.engine.string_if_invalid:
            self.assertEqual(output, 'INVALID')
        else:
            self.assertEqual(output, '')

    @setup({'i18n37': '{% load i18n %}'
                      '{% translate "Page not found" as page_not_found %}'
                      '{% blocktranslate %}Error: {{ page_not_found }}{% endblocktranslate %}'})
    def test_i18n37(self):
        with translation.override('de'):
            output = self.engine.render_to_string('i18n37')
        self.assertEqual(output, 'Error: Seite nicht gefunden')

    # blocktranslate tag with asvar
    @setup({'i18n39': '{% load i18n %}'
                      '{% blocktranslate asvar page_not_found %}Page not found{% endblocktranslate %}'
                      '>{{ page_not_found }}<'})
    def test_i18n39(self):
        with translation.override('de'):
            output = self.engine.render_to_string('i18n39')
        self.assertEqual(output, '>Seite nicht gefunden<')

    @setup({'i18n40': '{% load i18n %}'
                      '{% translate "Page not found" as pg_404 %}'
                      '{% blocktranslate with page_not_found=pg_404 asvar output %}'
                      'Error: {{ page_not_found }}'
                      '{% endblocktranslate %}'})
    def test_i18n40(self):
        output = self.engine.render_to_string('i18n40')
        self.assertEqual(output, '')

    @setup({'i18n41': '{% load i18n %}'
                      '{% translate "Page not found" as pg_404 %}'
                      '{% blocktranslate with page_not_found=pg_404 asvar output %}'
                      'Error: {{ page_not_found }}'
                      '{% endblocktranslate %}'
                      '>{{ output }}<'})
    def test_i18n41(self):
        with translation.override('de'):
            output = self.engine.render_to_string('i18n41')
        self.assertEqual(output, '>Error: Seite nicht gefunden<')

    @setup({'template': '{% load i18n %}{% blocktranslate asvar %}Yes{% endblocktranslate %}'})
    def test_blocktrans_syntax_error_missing_assignment(self, tag_name):
        msg = "No argument provided to the '{}' tag for the asvar option.".format(tag_name)
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('template')

    @setup({'template': '{% load i18n %}{% blocktranslate %}%s{% endblocktranslate %}'})
    def test_blocktrans_tag_using_a_string_that_looks_like_str_fmt(self):
        output = self.engine.render_to_string('template')
        self.assertEqual(output, '%s')

    @setup({'template': '{% load i18n %}{% blocktranslate %}{% block b %} {% endblock %}{% endblocktranslate %}'})
    def test_with_block(self, tag_name):
        msg = "'{}' doesn't allow other block tags (seen 'block b') inside it".format(tag_name)
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('template')

    @setup({'template': (
        '{% load i18n %}'
        '{% blocktranslate %}{% for b in [1, 2, 3] %} {% endfor %}'
        '{% endblocktranslate %}'
    )})
    def test_with_for(self, tag_name):
        msg = "'{}' doesn't allow other block tags (seen 'for b in [1, 2, 3]') inside it".format(tag_name)
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('template')

    @setup({'template': '{% load i18n %}{% blocktranslate with foo=bar with %}{{ foo }}{% endblocktranslate %}'})
    def test_variable_twice(self):
        with self.assertRaisesMessage(TemplateSyntaxError, "The 'with' option was specified more than once"):
            self.engine.render_to_string('template', {'foo': 'bar'})

    @setup({'template': '{% load i18n %}{% blocktranslate with %}{% endblocktranslate %}'})
    def test_no_args_with(self, tag_name):
        msg = '"with" in \'{}\' tag needs at least one keyword argument.'.format(tag_name)
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('template')

    @setup({'template': '{% load i18n %}{% blocktranslate count a %}{% endblocktranslate %}'})
    def test_count(self, tag_name):
        msg = '"count" in \'{}\' tag expected exactly one keyword argument.'.format(tag_name)
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('template', {'a': [1, 2, 3]})

    @setup({'template': (
        '{% load i18n %}{% blocktranslate count counter=num %}{{ counter }}'
        '{% plural %}{{ counter }}{% endblocktranslate %}'
    )})
    def test_count_not_number(self, tag_name):
        msg = "'counter' argument to '{}' tag must be a number.".format(tag_name)
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('template', {'num': '1'})

    @setup({'template': (
        '{% load i18n %}{% blocktranslate count count=var|length %}'
        'There is {{ count }} object. {% block a %} {% endblock %}'
        '{% endblocktranslate %}'
    )})
    def test_plural_bad_syntax(self, tag_name):
        msg = "'{}' doesn't allow other block tags inside it".format(tag_name)
        with self.assertRaisesMessage(TemplateSyntaxError, msg):
            self.engine.render_to_string('template', {'var': [1, 2, 3]})


class TranslationBlockTranslateTagTests(SimpleTestCase):
    tag_name = 'blocktranslate'

    def get_template(self, template_string):
        return Template(
            template_string.replace(
                '{{% blocktranslate ',
                '{{% {}'.format(self.tag_name)
            ).replace(
                '{{% endblocktranslate %}}',
                '{{% end{} %}}'.format(self.tag_name)
            )
        )

    @override_settings(LOCALE_PATHS=extended_locale_paths)
    def test_template_tags_pgettext(self):
        """{% blocktranslate %} takes message contexts into account (#14806)."""
        trans_real._active = Local()
        trans_real._translations = {}
        with translation.override('de'):
            # Nonexistent context
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context "nonexistent" %}May'
                '{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, 'May')

            # Existing context...  using a literal
            t = self.get_template('{% load i18n %}{% blocktranslate context "month name" %}May{% endblocktranslate %}')
            rendered = t.render(Context())
            self.assertEqual(rendered, 'Mai')
            t = self.get_template('{% load i18n %}{% blocktranslate context "verb" %}May{% endblocktranslate %}')
            rendered = t.render(Context())
            self.assertEqual(rendered, 'Kann')

            # Using a variable
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context message_context %}'
                'May{% endblocktranslate %}'
            )
            rendered = t.render(Context({'message_context': 'month name'}))
            self.assertEqual(rendered, 'Mai')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context message_context %}'
                'May{% endblocktranslate %}'
            )
            rendered = t.render(Context({'message_context': 'verb'}))
            self.assertEqual(rendered, 'Kann')

            # Using a filter
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context message_context|lower %}May{% endblocktranslate %}'
            )
            rendered = t.render(Context({'message_context': 'MONTH NAME'}))
            self.assertEqual(rendered, 'Mai')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context message_context|lower %}May{% endblocktranslate %}'
            )
            rendered = t.render(Context({'message_context': 'VERB'}))
            self.assertEqual(rendered, 'Kann')

            # Using 'count'
            t = self.get_template(
                '{% load i18n %}{% blocktranslate count number=1 context "super search" %}'
                '{{ number }} super result{% plural %}{{ number }} super results{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, '1 Super-Ergebnis')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate count number=2 context "super search" %}{{ number }}'
                ' super result{% plural %}{{ number }} super results{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, '2 Super-Ergebnisse')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context "other super search" count number=1 %}'
                '{{ number }} super result{% plural %}{{ number }} super results{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, '1 anderen Super-Ergebnis')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context "other super search" count number=2 %}'
                '{{ number }} super result{% plural %}{{ number }} super results{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, '2 andere Super-Ergebnisse')

            # Using 'with'
            t = self.get_template(
                '{% load i18n %}{% blocktranslate with num_comments=5 context "comment count" %}'
                'There are {{ num_comments }} comments{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, 'Es gibt 5 Kommentare')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate with num_comments=5 context "other comment count" %}'
                'There are {{ num_comments }} comments{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, 'Andere: Es gibt 5 Kommentare')

            # Using trimmed
            t = self.get_template(
                '{% load i18n %}{% blocktranslate trimmed %}\n\nThere\n\t are 5  '
                '\n\n   comments\n{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, 'There are 5 comments')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate with num_comments=5 context "comment count" trimmed %}\n\n'
                'There are  \t\n  \t {{ num_comments }} comments\n\n{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, 'Es gibt 5 Kommentare')
            t = self.get_template(
                '{% load i18n %}{% blocktranslate context "other super search" count number=2 trimmed %}\n'
                '{{ number }} super \n result{% plural %}{{ number }} super results{% endblocktranslate %}'
            )
            rendered = t.render(Context())
            self.assertEqual(rendered, '2 andere Super-Ergebnisse')

            # Misuses
            msg = "Unknown argument for 'blocktranslate' tag: %r."
            with self.assertRaisesMessage(TemplateSyntaxError, msg % 'month="May"'):
                self.get_template(
                    '{% load i18n %}{% blocktranslate context with month="May" %}{{ month }}{% endblocktranslate %}'
                )
            msg = '"context" in %r tag expected exactly one argument.' % 'blocktranslate'
            with self.assertRaisesMessage(TemplateSyntaxError, msg):
                self.get_template('{% load i18n %}{% blocktranslate context %}{% endblocktranslate %}')
            with self.assertRaisesMessage(TemplateSyntaxError, msg):
                self.get_template(
                    '{% load i18n %}{% blocktranslate count number=2 context %}'
                    '{{ number }} super result{% plural %}{{ number }}'
                    ' super results{% endblocktranslate %}'
                )

    @override_settings(LOCALE_PATHS=[os.path.join(here, 'other', 'locale')])
    def test_bad_placeholder_1(self):
        """
        Error in translation file should not crash template rendering (#16516).
        (%(person)s is translated as %(personne)s in fr.po).
        """
        with translation.override('fr'):
            t = Template('{% load i18n %}{% blocktranslate %}My name is {{ person }}.{% endblocktranslate %}')
            rendered = t.render(Context({'person': 'James'}))
            self.assertEqual(rendered, 'My name is James.')

    @override_settings(LOCALE_PATHS=[os.path.join(here, 'other', 'locale')])
    def test_bad_placeholder_2(self):
        """
        Error in translation file should not crash template rendering (#18393).
        (%(person) misses a 's' in fr.po, causing the string formatting to fail)
        .
        """
        with translation.override('fr'):
            t = Template('{% load i18n %}{% blocktranslate %}My other name is {{ person }}.{% endblocktranslate %}')
            rendered = t.render(Context({'person': 'James'}))
            self.assertEqual(rendered, 'My other name is James.')


class TranslationBlockTransnTagTests(TranslationBlockTranslateTagTests):
    tag_name = 'blocktrans'


class MultipleLocaleActivationBlockTranslateTests(MultipleLocaleActivationTestCase):
    tag_name = 'blocktranslate'

    def get_template(self, template_string):
        return Template(
            template_string.replace(
                '{{% blocktranslate ',
                '{{% {}'.format(self.tag_name)
            ).replace(
                '{{% endblocktranslate %}}',
                '{{% end{} %}}'.format(self.tag_name)
            )
        )

    def test_single_locale_activation(self):
        """
        Simple baseline behavior with one locale for all the supported i18n
        constructs.
        """
        with translation.override('fr'):
            self.assertEqual(
                self.get_template("{% load i18n %}{% blocktranslate %}Yes{% endblocktranslate %}").render(Context({})),
                'Oui'
            )

    def test_multiple_locale_btrans(self):
        with translation.override('de'):
            t = self.get_template("{% load i18n %}{% blocktranslate %}No{% endblocktranslate %}")
        with translation.override(self._old_language), translation.override('nl'):
            self.assertEqual(t.render(Context({})), 'Nee')

    def test_multiple_locale_deactivate_btrans(self):
        with translation.override('de', deactivate=True):
            t = self.get_template("{% load i18n %}{% blocktranslate %}No{% endblocktranslate %}")
        with translation.override('nl'):
            self.assertEqual(t.render(Context({})), 'Nee')

    def test_multiple_locale_direct_switch_btrans(self):
        with translation.override('de'):
            t = self.get_template("{% load i18n %}{% blocktranslate %}No{% endblocktranslate %}")
        with translation.override('nl'):
            self.assertEqual(t.render(Context({})), 'Nee')


class MultipleLocaleActivationBlockTransTests(MultipleLocaleActivationBlockTranslateTests):
    tag_name = 'blocktrans'


class MiscTests(SimpleTestCase):
    tag_name = 'blocktranslate'

    def get_template(self, template_string):
        return Template(
            template_string.replace(
                '{{% blocktranslate ',
                '{{% {}'.format(self.tag_name)
            ).replace(
                '{{% endblocktranslate %}}',
                '{{% end{} %}}'.format(self.tag_name)
            )
        )

    @override_settings(LOCALE_PATHS=extended_locale_paths)
    def test_percent_in_translatable_block(self):
        t_sing = self.get_template(
            "{% load i18n %}{% blocktranslate %}The result was {{ percent }}%{% endblocktranslate %}"
        )
        t_plur = self.get_template(
            "{% load i18n %}{% blocktranslate count num as number %}"
            "{{ percent }}% represents {{ num }} object{% plural %}"
            "{{ percent }}% represents {{ num }} objects{% endblocktranslate %}"
        )
        with translation.override('de'):
            self.assertEqual(t_sing.render(Context({'percent': 42})), 'Das Ergebnis war 42%')
            self.assertEqual(t_plur.render(Context({'percent': 42, 'num': 1})), '42% stellt 1 Objekt dar')
            self.assertEqual(t_plur.render(Context({'percent': 42, 'num': 4})), '42% stellt 4 Objekte dar')

    @override_settings(LOCALE_PATHS=extended_locale_paths)
    def test_percent_formatting_in_blocktranslate(self):
        """
        Python's %-formatting is properly escaped in blocktranslate, singular,
        or plural.
        """
        t_sing = self.get_template(
            "{% load i18n %}{% blocktranslate %}There are %(num_comments)s comments{% endblocktranslate %}"
        )
        t_plur = self.get_template(
            "{% load i18n %}{% blocktranslate count num as number %}"
            "%(percent)s% represents {{ num }} object{% plural %}"
            "%(percent)s% represents {{ num }} objects{% endblocktranslate %}"
        )
        with translation.override('de'):
            # Strings won't get translated as they don't match after escaping %
            self.assertEqual(t_sing.render(Context({'num_comments': 42})), 'There are %(num_comments)s comments')
            self.assertEqual(t_plur.render(Context({'percent': 42, 'num': 1})), '%(percent)s% represents 1 object')
            self.assertEqual(t_plur.render(Context({'percent': 42, 'num': 4})), '%(percent)s% represents 4 objects')


class MiscBlockTranslationTests(MiscTests):
    tag_name = 'blocktrans'