def testTag(self):
expected_base = RELATIVE_PIC_NAME.replace('.', '_')
# Set DEBUG = True to make it easier to trace any failures
self.change_settings.change({'DEBUG': True})
# Basic
output = self.render_template('src="'
'{% thumbnail source 240x240 %}"')
expected = '%s_240x240_q85.jpg' % expected_base
expected_fn = os.path.join(settings.MEDIA_ROOT, expected)
self.verify_thumbnail((240, 180), expected_filename=expected_fn)
expected_url = ''.join((settings.MEDIA_URL, expected))
self.assertEqual(output, 'src="%s"' % expected_url)
# Size from context variable
# as a tuple:
output = self.render_template('src="'
'{% thumbnail source size %}"')
expected = '%s_90x100_q85.jpg' % expected_base
expected_fn = os.path.join(settings.MEDIA_ROOT, expected)
self.verify_thumbnail((90, 67), expected_filename=expected_fn)
expected_url = ''.join((settings.MEDIA_URL, expected))
self.assertEqual(output, 'src="%s"' % expected_url)
# as a string:
output = self.render_template('src="'
'{% thumbnail source strsize %}"')
expected = '%s_80x90_q85.jpg' % expected_base
expected_fn = os.path.join(settings.MEDIA_ROOT, expected)
self.verify_thumbnail((80, 60), expected_filename=expected_fn)
expected_url = ''.join((settings.MEDIA_URL, expected))
self.assertEqual(output, 'src="%s"' % expected_url)
# On context
output = self.render_template('height:'
'{% thumbnail source 240x240 as thumb %}{{ thumb.height }}')
self.assertEqual(output, 'height:180')
# With options and quality
output = self.render_template('src="'
'{% thumbnail source 240x240 sharpen,crop,quality=95 %}"')
# Note that the order of opts comes from VALID_OPTIONS to ensure a
# consistent filename.
expected = '%s_240x240_crop_sharpen_q95.jpg' % expected_base
expected_fn = os.path.join(settings.MEDIA_ROOT, expected)
self.verify_thumbnail((240, 240), expected_filename=expected_fn)
expected_url = ''.join((settings.MEDIA_URL, expected))
self.assertEqual(output, 'src="%s"' % expected_url)
# With option and quality on context (also using its unicode method to
# display the url)
output = self.render_template(
'{% thumbnail source 240x240 sharpen,crop,quality=95 as thumb %}'
'width:{{ thumb.width }}, url:{{ thumb }}')
self.assertEqual(output, 'width:240, url:%s' % expected_url)
def testTagInvalid(self):
basename = RELATIVE_PIC_NAME.replace('.', '_')
# No args, or wrong number of args
src = '{% thumbnail %}'
self.assertRaises(TemplateSyntaxError, self.render_template, src)
src = '{% thumbnail source %}'
self.assertRaises(TemplateSyntaxError, self.render_template, src)
src = '{% thumbnail source 80x80 Xas variable %}'
self.assertRaises(TemplateSyntaxError, self.render_template, src)
src = '{% thumbnail source 80x80 as variable X %}'
self.assertRaises(TemplateSyntaxError, self.render_template, src)
# Invalid option
src = '{% thumbnail source 240x200 invalid %}'
self.assertRaises(TemplateSyntaxError, self.render_template, src)
# Invalid quality
src = '{% thumbnail source 240x200 quality=a %}'
self.assertRaises(TemplateSyntaxError, self.render_template, src)
# Invalid source
src = '{% thumbnail invalid_source 80x80 %}'
src_on_context = '{% thumbnail invalid_source 80x80 as thumb %}'
# ...with THUMBNAIL_DEBUG = False
self.assertEqual(self.render_template(src), '')
# ...and with THUMBNAIL_DEBUG = True
self.change_settings.change({'DEBUG': True})
self.assertRaises(TemplateSyntaxError, self.render_template, src)
self.assertRaises(TemplateSyntaxError, self.render_template,
src_on_context)
# Non-existant source
src = '{% thumbnail non_existant_source 80x80 %}'
src_on_context = '{% thumbnail non_existant_source 80x80 as thumb %}'
# ...with THUMBNAIL_DEBUG = False
self.change_settings.change({'DEBUG': False})
self.assertEqual(self.render_template(src), '')
# ...and with THUMBNAIL_DEBUG = True
self.change_settings.change({'DEBUG': True})
self.assertRaises(TemplateSyntaxError, self.render_template, src)
# Invalid size as a tuple:
src = '{% thumbnail source invalid_size %}'
# ...with THUMBNAIL_DEBUG = False
self.change_settings.change({'DEBUG': False})
self.assertEqual(self.render_template(src), '')
# ...and THUMBNAIL_DEBUG = True
self.change_settings.change({'DEBUG': True})
self.assertRaises(TemplateSyntaxError, self.render_template, src)
# Invalid size as a string:
src = '{% thumbnail source invalid_strsize %}'
# ...with THUMBNAIL_DEBUG = False
self.change_settings.change({'DEBUG': False})
self.assertEqual(self.render_template(src), '')
# ...and THUMBNAIL_DEBUG = True
self.change_settings.change({'DEBUG': True})
self.assertRaises(TemplateSyntaxError, self.render_template, src)
# Non-existant size
src = '{% thumbnail source non_existant_size %}'
# ...with THUMBNAIL_DEBUG = False
self.change_settings.change({'DEBUG': False})
self.assertEqual(self.render_template(src), '')
# ...and THUMBNAIL_DEBUG = True
self.change_settings.change({'DEBUG': True})
self.assertRaises(TemplateSyntaxError, self.render_template, src)
