+# -*- coding: utf-8 -*-
+import os
+import time
+from StringIO import StringIO
+
+from PIL import Image
+from django.conf import settings
+
+from sorl.thumbnail.base import Thumbnail
+from sorl.thumbnail.main import DjangoThumbnail, get_thumbnail_setting
+from sorl.thumbnail.processors import dynamic_import, get_valid_options
+from sorl.thumbnail.tests.base import BaseTest, RELATIVE_PIC_NAME, PIC_NAME,\
+ THUMB_NAME, PIC_SIZE
+
+
+class ThumbnailTest(BaseTest):
+ def testThumbnails(self):
+ # Thumbnail
+ thumb = Thumbnail(source=PIC_NAME, dest=THUMB_NAME % 1,
+ requested_size=(240, 240))
+ self.verify_thumbnail((240, 180), thumb)
+
+ # Cropped thumbnail
+ thumb = Thumbnail(source=PIC_NAME, dest=THUMB_NAME % 2,
+ requested_size=(240, 240), opts=['crop'])
+ self.verify_thumbnail((240, 240), thumb)
+
+ # Thumbnail with altered JPEG quality
+ thumb = Thumbnail(source=PIC_NAME, dest=THUMB_NAME % 3,
+ requested_size=(240, 240), quality=95)
+ self.verify_thumbnail((240, 180), thumb)
+
+ def testRegeneration(self):
+ # Create thumbnail
+ thumb_name = THUMB_NAME % 4
+ thumb_size = (240, 240)
+ Thumbnail(source=PIC_NAME, dest=thumb_name, requested_size=thumb_size)
+ self.images_to_delete.add(thumb_name)
+ thumb_mtime = os.path.getmtime(thumb_name)
+ time.sleep(1)
+
+ # Create another instance, shouldn't generate a new thumb
+ Thumbnail(source=PIC_NAME, dest=thumb_name, requested_size=thumb_size)
+ self.assertEqual(os.path.getmtime(thumb_name), thumb_mtime)
+
+ # Recreate the source image, then see if a new thumb is generated
+ Image.new('RGB', PIC_SIZE).save(PIC_NAME, 'JPEG')
+ Thumbnail(source=PIC_NAME, dest=thumb_name, requested_size=thumb_size)
+ self.assertNotEqual(os.path.getmtime(thumb_name), thumb_mtime)
+
+ def testFilelikeDest(self):
+ # Thumbnail
+ filelike_dest = StringIO()
+ thumb = Thumbnail(source=PIC_NAME, dest=filelike_dest,
+ requested_size=(240, 240))
+ self.verify_thumbnail((240, 180), thumb)
+
+ def testRGBA(self):
+ # RGBA image
+ rgba_pic_name = os.path.join(settings.MEDIA_ROOT,
+ 'sorl-thumbnail-test_rgba_source.png')
+ Image.new('RGBA', PIC_SIZE).save(rgba_pic_name)
+ self.images_to_delete.add(rgba_pic_name)
+ # Create thumb and verify it's still RGBA
+ rgba_thumb_name = os.path.join(settings.MEDIA_ROOT,
+ 'sorl-thumbnail-test_rgba_dest.png')
+ thumb = Thumbnail(source=rgba_pic_name, dest=rgba_thumb_name,
+ requested_size=(240, 240))
+ self.verify_thumbnail((240, 180), thumb, expected_mode='RGBA')
+
+
+class DjangoThumbnailTest(BaseTest):
+ def setUp(self):
+ super(DjangoThumbnailTest, self).setUp()
+ # Add another source image in a sub-directory for testing subdir and
+ # basedir.
+ self.sub_dir = os.path.join(settings.MEDIA_ROOT, 'test_thumbnail')
+ try:
+ os.mkdir(self.sub_dir)
+ except OSError:
+ pass
+ self.pic_subdir = os.path.join(self.sub_dir, RELATIVE_PIC_NAME)
+ Image.new('RGB', PIC_SIZE).save(self.pic_subdir, 'JPEG')
+ self.images_to_delete.add(self.pic_subdir)
+
+ def testFilenameGeneration(self):
+ basename = RELATIVE_PIC_NAME.replace('.', '_')
+ # Basic filename
+ thumb = DjangoThumbnail(relative_source=RELATIVE_PIC_NAME,
+ requested_size=(240, 120))
+ expected = os.path.join(settings.MEDIA_ROOT, basename)
+ expected += '_240x120_q85.jpg'
+ self.verify_thumbnail((160, 120), thumb, expected_filename=expected)
+
+ # Changed quality and cropped
+ thumb = DjangoThumbnail(relative_source=RELATIVE_PIC_NAME,
+ requested_size=(240, 120), opts=['crop'],
+ quality=95)
+ expected = os.path.join(settings.MEDIA_ROOT, basename)
+ expected += '_240x120_crop_q95.jpg'
+ self.verify_thumbnail((240, 120), thumb, expected_filename=expected)
+
+ # All options on
+ processors = dynamic_import(get_thumbnail_setting('PROCESSORS'))
+ valid_options = get_valid_options(processors)
+
+ thumb = DjangoThumbnail(relative_source=RELATIVE_PIC_NAME,
+ requested_size=(240, 120), opts=valid_options)
+ expected = (os.path.join(settings.MEDIA_ROOT, basename) + '_240x120_'
+ 'autocrop_bw_crop_detail_max_sharpen_upscale_q85.jpg')
+ self.verify_thumbnail((240, 120), thumb, expected_filename=expected)
+
+ # Different basedir
+ basedir = 'sorl-thumbnail-test-basedir'
+ self.change_settings.change({'BASEDIR': basedir})
+ thumb = DjangoThumbnail(relative_source=self.pic_subdir,
+ requested_size=(240, 120))
+ expected = os.path.join(basedir, self.sub_dir, basename)
+ expected += '_240x120_q85.jpg'
+ self.verify_thumbnail((160, 120), thumb, expected_filename=expected)
+ # Different subdir
+ self.change_settings.change({'BASEDIR': '', 'SUBDIR': 'subdir'})
+ thumb = DjangoThumbnail(relative_source=self.pic_subdir,
+ requested_size=(240, 120))
+ expected = os.path.join(settings.MEDIA_ROOT,
+ os.path.basename(self.sub_dir), 'subdir',
+ basename)
+ expected += '_240x120_q85.jpg'
+ self.verify_thumbnail((160, 120), thumb, expected_filename=expected)
+ # Different prefix
+ self.change_settings.change({'SUBDIR': '', 'PREFIX': 'prefix-'})
+ thumb = DjangoThumbnail(relative_source=self.pic_subdir,
+ requested_size=(240, 120))
+ expected = os.path.join(self.sub_dir, 'prefix-' + basename)
+ expected += '_240x120_q85.jpg'
+ self.verify_thumbnail((160, 120), thumb, expected_filename=expected)
+
+ def testAlternateExtension(self):
+ basename = RELATIVE_PIC_NAME.replace('.', '_')
+ # Control JPG
+ thumb = DjangoThumbnail(relative_source=RELATIVE_PIC_NAME,
+ requested_size=(240, 120))
+ expected = os.path.join(settings.MEDIA_ROOT, basename)
+ expected += '_240x120_q85.jpg'
+ expected_jpg = expected
+ self.verify_thumbnail((160, 120), thumb, expected_filename=expected)
+ # Test PNG
+ thumb = DjangoThumbnail(relative_source=RELATIVE_PIC_NAME,
+ requested_size=(240, 120), extension='png')
+ expected = os.path.join(settings.MEDIA_ROOT, basename)
+ expected += '_240x120_q85.png'
+ self.verify_thumbnail((160, 120), thumb, expected_filename=expected)
+ # Compare the file size to make sure it's not just saving as a JPG with
+ # a different extension.
+ self.assertNotEqual(os.path.getsize(expected_jpg),
+ os.path.getsize(expected))
+
+ def testUnicodeName(self):
+ unicode_name = 'sorl-thumbnail-ążśź_source.jpg'
+ unicode_path = os.path.join(settings.MEDIA_ROOT, unicode_name)
+ Image.new('RGB', PIC_SIZE).save(unicode_path)
+ self.images_to_delete.add(unicode_path)
+ thumb = DjangoThumbnail(relative_source=unicode_name,
+ requested_size=(240, 120))
+ base_name = unicode_name.replace('.', '_')
+ expected = os.path.join(settings.MEDIA_ROOT,
+ base_name + '_240x120_q85.jpg')
+ self.verify_thumbnail((160, 120), thumb, expected_filename=expected)
+
+ def tearDown(self):
+ super(DjangoThumbnailTest, self).tearDown()
+ subdir = os.path.join(self.sub_dir, 'subdir')
+ if os.path.exists(subdir):
+ os.rmdir(subdir)
+ os.rmdir(self.sub_dir)