from django.template.defaultfilters import wordcount
from django.test import SimpleTestCase
from django.utils.safestring import mark_safe

from ..utils import setup


class WordcountTests(SimpleTestCase):

    @setup({'wordcount01': '{% autoescape off %}{{ a|wordcount }} {{ b|wordcount }}{% endautoescape %}'})
    def test_wordcount01(self):
        output = self.engine.render_to_string('wordcount01', {'a': 'a & b', 'b': mark_safe('a & b')})
        self.assertEqual(output, '3 3')

    @setup({'wordcount02': '{{ a|wordcount }} {{ b|wordcount }}'})
    def test_wordcount02(self):
        output = self.engine.render_to_string('wordcount02', {'a': 'a & b', 'b': mark_safe('a & b')})
        self.assertEqual(output, '3 3')


class FunctionTests(SimpleTestCase):

    def test_empty_string(self):
        self.assertEqual(wordcount(''), 0)

    def test_count_one(self):
        self.assertEqual(wordcount('oneword'), 1)

    def test_count_multiple(self):
        self.assertEqual(wordcount('lots of words'), 3)

    def test_non_string_input(self):
        self.assertEqual(wordcount(123), 1)