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# -*- coding: utf-8 -*-
import os
import re
import unittest
from subprocess import Popen, PIPE
from PIL import Image
from django.template.loader import render_to_string
from django.test import Client, TestCase
import pytest
from sorl.thumbnail.conf import settings
from sorl.thumbnail.engines.pil_engine import Engine as PILEngine
from .models import Item
from .utils import BaseTestCase, override_custom_settings, DATA_DIR
pytestmark = pytest.mark.django_db
class TemplateTestCaseA(BaseTestCase):
def test_model(self):
item = Item.objects.get(image='500x500.jpg')
val = render_to_string('thumbnail1.html', {'item': item, }).strip()
self.assertEqual(val, '<img style="margin:0px 0px 0px 0px" width="200" height="100">')
val = render_to_string('thumbnail2.html', {'item': item, }).strip()
self.assertEqual(val, '<img style="margin:0px 50px 0px 50px" width="100" height="100">')
def test_nested(self):
item = Item.objects.get(image='500x500.jpg')
val = render_to_string('thumbnail6.html', {'item': item, }).strip()
self.assertEqual(val, (
'<a href="/media/test/cache/fc/f6/fcf65c09cc4bb8671147de41997422bf.jpg">'
'<img src="/media/test/cache/67/6b/676b2331a071478b0cb280d0edba7818.jpg" '
'width="400" height="400"></a>'
))
def test_serialization_options(self):
item = Item.objects.get(image='500x500.jpg')
for _ in range(0, 20):
# we could be lucky...
val0 = render_to_string('thumbnail7.html', {
'item': item,
}).strip()
val1 = render_to_string('thumbnail7a.html', {
'item': item,
}).strip()
self.assertEqual(val0, val1)
def test_options(self):
item = Item.objects.get(image='500x500.jpg')
options = {
'crop': "center",
'upscale': True,
'quality': 77,
}
val0 = render_to_string('thumbnail8.html', {'item': item, 'options': options, }).strip()
val1 = render_to_string('thumbnail8a.html', {'item': item, }).strip()
self.assertEqual(val0, val1)
def test_progressive(self):
im = Item.objects.get(image='500x500.jpg').image
th = self.BACKEND.get_thumbnail(im, '100x100', progressive=True)
path = os.path.join(settings.MEDIA_ROOT, th.name)
p = Popen(['identify', '-verbose', path], stdout=PIPE)
p.wait()
m = re.search('Interlace: JPEG', str(p.stdout.read()))
p.stdout.close()
self.assertEqual(bool(m), True)
def test_nonprogressive(self):
im = Item.objects.get(image='500x500.jpg').image
th = self.BACKEND.get_thumbnail(im, '100x100', progressive=False)
path = os.path.join(settings.MEDIA_ROOT, th.name)
p = Popen(['identify', '-verbose', path], stdout=PIPE)
p.wait()
m = re.search('Interlace: None', str(p.stdout.read()))
p.stdout.close()
self.assertEqual(bool(m), True)
def test_orientation(self):
ref = Image.open(os.path.join(DATA_DIR, '1_topleft.jpg'))
top = ref.getpixel((14, 7))
left = ref.getpixel((7, 14))
engine = PILEngine()
def epsilon(x, y):
if isinstance(x, (tuple, list)):
x = sum(x) / len(x)
if isinstance(y, (tuple, list)):
y = sum(y) / len(y)
return abs(x - y)
data_images = (
'1_topleft.jpg',
'2_topright.jpg',
'3_bottomright.jpg',
'4_bottomleft.jpg',
'5_lefttop.jpg',
'6_righttop.jpg',
'7_rightbottom.jpg',
'8_leftbottom.jpg'
)
for name in data_images:
th = self.BACKEND.get_thumbnail('data/%s' % name, '30x30')
im = engine.get_image(th)
self.assertLess(epsilon(top, im.getpixel((14, 7))), 10)
self.assertLess(epsilon(left, im.getpixel((7, 14))), 10)
exif = im._getexif()
# no exif editor in GraphicsMagick
if exif and not (settings.THUMBNAIL_CONVERT.endswith('gm convert') or
'pgmagick_engine' in settings.THUMBNAIL_ENGINE):
self.assertEqual(exif.get(0x0112), 1)
class TemplateTestCaseB(BaseTestCase):
@unittest.skipIf(os.environ.get('LOCAL_BUILD', False), "No remote resources desired")
def test_url(self):
val = render_to_string('thumbnail3.html', {}).strip()
self.assertEqual(val, '<img style="margin:0px 0px 0px 0px" width="20" height="20">')
@unittest.skipIf(os.environ.get('LOCAL_BUILD', False), "No remote resources desired")
def test_portrait(self):
val = render_to_string('thumbnail4.html', {
'source': 'http://dummyimage.com/120x100/',
'dims': 'x66',
}).strip()
self.assertEqual(val,
'<img src="/media/test/cache/7b/cd/7bcd20922c6750649f431df7c3cdbc5e.jpg" '
'width="79" height="66" class="landscape">')
def test_empty(self):
val = render_to_string('thumbnail5.html', {}).strip()
self.assertEqual(val, '<p>empty</p>')
class TemplateTestCaseClient(TestCase):
def test_empty_error(self):
with override_custom_settings(settings, THUMBNAIL_DEBUG=False):
from django.core.mail import outbox
client = Client()
response = client.get('/thumbnail9.html')
self.assertEqual(response.content.strip(), b'<p>empty</p>')
self.assertEqual(outbox[0].subject, '[sorl-thumbnail] ERROR: Unknown URL')
end = outbox[0].body.split('\n\n')[-2].split(':')[1].strip()
self.assertEqual(end, '[Errno 2] No such file or directory')
class TemplateTestCaseTemplateTagAlias(BaseTestCase):
"""Testing alternative template tag (alias)."""
def test_model(self):
item = Item.objects.get(image='500x500.jpg')
val = render_to_string(
'thumbnail1_alias.html', {'item': item}
).strip()
self.assertEqual(
val,
'<img style="margin:0px 0px 0px 0px" width="200" height="100">'
)
val = render_to_string(
'thumbnail2_alias.html', {'item': item}
).strip()
self.assertEqual(
val,
'<img style="margin:0px 50px 0px 50px" width="100" height="100">'
)
def test_nested(self):
item = Item.objects.get(image='500x500.jpg')
val = render_to_string(
'thumbnail6_alias.html', {'item': item}
).strip()
self.assertEqual(
val,
(
'<a href="/media/test/cache/fc/f6/'
'fcf65c09cc4bb8671147de41997422bf.jpg">'
'<img src="/media/test/cache/67/6b/'
'676b2331a071478b0cb280d0edba7818.jpg" '
'width="400" height="400"></a>'
)
)
def test_serialization_options(self):
item = Item.objects.get(image='500x500.jpg')
for _ in range(0, 20):
# we could be lucky...
val0 = render_to_string('thumbnail7_alias.html', {
'item': item,
}).strip()
val1 = render_to_string('thumbnail7a_alias.html', {
'item': item,
}).strip()
self.assertEqual(val0, val1)
def test_options(self):
item = Item.objects.get(image='500x500.jpg')
options = {
'crop': "center",
'upscale': True,
'quality': 77,
}
val0 = render_to_string(
'thumbnail8_alias.html',
{'item': item, 'options': options}
).strip()
val1 = render_to_string(
'thumbnail8a_alias.html', {'item': item}
).strip()
self.assertEqual(val0, val1)
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