django/tests/template_tests/syntax_tests/test_width_ratio.py

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from django.template import TemplateSyntaxError
from django.test import SimpleTestCase
from ..utils import setup
class WidthRatioTagTests(SimpleTestCase):
libraries = {'custom': 'template_tests.templatetags.custom'}
@setup({'widthratio01': '{% widthratio a b 0 %}'})
def test_widthratio01(self):
output = self.engine.render_to_string('widthratio01', {'a': 50, 'b': 100})
self.assertEqual(output, '0')
@setup({'widthratio02': '{% widthratio a b 100 %}'})
def test_widthratio02(self):
output = self.engine.render_to_string('widthratio02', {'a': 0, 'b': 0})
self.assertEqual(output, '0')
@setup({'widthratio03': '{% widthratio a b 100 %}'})
def test_widthratio03(self):
output = self.engine.render_to_string('widthratio03', {'a': 0, 'b': 100})
self.assertEqual(output, '0')
@setup({'widthratio04': '{% widthratio a b 100 %}'})
def test_widthratio04(self):
output = self.engine.render_to_string('widthratio04', {'a': 50, 'b': 100})
self.assertEqual(output, '50')
@setup({'widthratio05': '{% widthratio a b 100 %}'})
def test_widthratio05(self):
output = self.engine.render_to_string('widthratio05', {'a': 100, 'b': 100})
self.assertEqual(output, '100')
@setup({'widthratio06': '{% widthratio a b 100 %}'})
def test_widthratio06(self):
"""
62.5 should round to 62
"""
output = self.engine.render_to_string('widthratio06', {'a': 50, 'b': 80})
self.assertEqual(output, '62')
@setup({'widthratio07': '{% widthratio a b 100 %}'})
def test_widthratio07(self):
"""
71.4 should round to 71
"""
output = self.engine.render_to_string('widthratio07', {'a': 50, 'b': 70})
self.assertEqual(output, '71')
# Raise exception if we don't have 3 args, last one an integer
@setup({'widthratio08': '{% widthratio %}'})
def test_widthratio08(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.get_template('widthratio08')
@setup({'widthratio09': '{% widthratio a b %}'})
def test_widthratio09(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('widthratio09', {'a': 50, 'b': 100})
@setup({'widthratio10': '{% widthratio a b 100.0 %}'})
def test_widthratio10(self):
output = self.engine.render_to_string('widthratio10', {'a': 50, 'b': 100})
self.assertEqual(output, '50')
@setup({'widthratio11': '{% widthratio a b c %}'})
def test_widthratio11(self):
"""
#10043: widthratio should allow max_width to be a variable
"""
output = self.engine.render_to_string('widthratio11', {'a': 50, 'c': 100, 'b': 100})
self.assertEqual(output, '50')
# #18739: widthratio should handle None args consistently with
# non-numerics
@setup({'widthratio12a': '{% widthratio a b c %}'})
def test_widthratio12a(self):
output = self.engine.render_to_string('widthratio12a', {'a': 'a', 'c': 100, 'b': 100})
self.assertEqual(output, '')
@setup({'widthratio12b': '{% widthratio a b c %}'})
def test_widthratio12b(self):
output = self.engine.render_to_string('widthratio12b', {'a': None, 'c': 100, 'b': 100})
self.assertEqual(output, '')
@setup({'widthratio13a': '{% widthratio a b c %}'})
def test_widthratio13a(self):
output = self.engine.render_to_string('widthratio13a', {'a': 0, 'c': 100, 'b': 'b'})
self.assertEqual(output, '')
@setup({'widthratio13b': '{% widthratio a b c %}'})
def test_widthratio13b(self):
output = self.engine.render_to_string('widthratio13b', {'a': 0, 'c': 100, 'b': None})
self.assertEqual(output, '')
@setup({'widthratio14a': '{% widthratio a b c %}'})
def test_widthratio14a(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('widthratio14a', {'a': 0, 'c': 'c', 'b': 100})
@setup({'widthratio14b': '{% widthratio a b c %}'})
def test_widthratio14b(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.render_to_string('widthratio14b', {'a': 0, 'c': None, 'b': 100})
@setup({'widthratio15': '{% load custom %}{% widthratio a|noop:"x y" b 0 %}'})
def test_widthratio15(self):
"""
Test whitespace in filter argument
"""
output = self.engine.render_to_string('widthratio15', {'a': 50, 'b': 100})
self.assertEqual(output, '0')
# Widthratio with variable assignment
@setup({'widthratio16': '{% widthratio a b 100 as variable %}-{{ variable }}-'})
def test_widthratio16(self):
output = self.engine.render_to_string('widthratio16', {'a': 50, 'b': 100})
self.assertEqual(output, '-50-')
@setup({'widthratio17': '{% widthratio a b 100 as variable %}-{{ variable }}-'})
def test_widthratio17(self):
output = self.engine.render_to_string('widthratio17', {'a': 100, 'b': 100})
self.assertEqual(output, '-100-')
@setup({'widthratio18': '{% widthratio a b 100 as %}'})
def test_widthratio18(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.get_template('widthratio18')
@setup({'widthratio19': '{% widthratio a b 100 not_as variable %}'})
def test_widthratio19(self):
with self.assertRaises(TemplateSyntaxError):
self.engine.get_template('widthratio19')
@setup({'widthratio20': '{% widthratio a b 100 %}'})
def test_widthratio20(self):
output = self.engine.render_to_string('widthratio20', {'a': float('inf'), 'b': float('inf')})
self.assertEqual(output, '')
@setup({'widthratio21': '{% widthratio a b 100 %}'})
def test_widthratio21(self):
output = self.engine.render_to_string('widthratio21', {'a': float('inf'), 'b': 2})
self.assertEqual(output, '')
@setup({'t': '{% widthratio a b 100 as variable %}-{{ variable }}-'})
def test_zerodivisionerror_as_var(self):
output = self.engine.render_to_string('t', {'a': 0, 'b': 0})
self.assertEqual(output, '-0-')
@setup({'t': '{% widthratio a b c as variable %}-{{ variable }}-'})
def test_typeerror_as_var(self):
output = self.engine.render_to_string('t', {'a': 'a', 'c': 100, 'b': 100})
self.assertEqual(output, '--')