本文整理汇总了Python中scrapy.pipelines.images.ImagesPipeline.convert_image方法的典型用法代码示例。如果您正苦于以下问题：Python ImagesPipeline.convert_image方法的具体用法？Python ImagesPipeline.convert_image怎么用？Python ImagesPipeline.convert_image使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类scrapy.pipelines.images.ImagesPipeline的用法示例。
在下文中一共展示了ImagesPipeline.convert_image方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: ImagesPipelineTestCase
# 需要导入模块: from scrapy.pipelines.images import ImagesPipeline [as 别名]
# 或者: from scrapy.pipelines.images.ImagesPipeline import convert_image [as 别名]
class ImagesPipelineTestCase(unittest.TestCase):
skip = skip
def setUp(self):
self.tempdir = mkdtemp()
self.pipeline = ImagesPipeline(self.tempdir, download_func=_mocked_download_func)
def tearDown(self):
rmtree(self.tempdir)
def test_file_path(self):
file_path = self.pipeline.file_path
self.assertEqual(file_path(Request("https://dev.mydeco.com/mydeco.gif")),
'full/3fd165099d8e71b8a48b2683946e64dbfad8b52d.jpg')
self.assertEqual(file_path(Request("http://www.maddiebrown.co.uk///catalogue-items//image_54642_12175_95307.jpg")),
'full/0ffcd85d563bca45e2f90becd0ca737bc58a00b2.jpg')
self.assertEqual(file_path(Request("https://dev.mydeco.com/two/dirs/with%20spaces%2Bsigns.gif")),
'full/b250e3a74fff2e4703e310048a5b13eba79379d2.jpg')
self.assertEqual(file_path(Request("http://www.dfsonline.co.uk/get_prod_image.php?img=status_0907_mdm.jpg")),
'full/4507be485f38b0da8a0be9eb2e1dfab8a19223f2.jpg')
self.assertEqual(file_path(Request("http://www.dorma.co.uk/images/product_details/2532/")),
'full/97ee6f8a46cbbb418ea91502fd24176865cf39b2.jpg')
self.assertEqual(file_path(Request("http://www.dorma.co.uk/images/product_details/2532")),
'full/244e0dd7d96a3b7b01f54eded250c9e272577aa1.jpg')
self.assertEqual(file_path(Request("http://www.dorma.co.uk/images/product_details/2532"),
response=Response("http://www.dorma.co.uk/images/product_details/2532"),
info=object()),
'full/244e0dd7d96a3b7b01f54eded250c9e272577aa1.jpg')
def test_thumbnail_name(self):
thumb_path = self.pipeline.thumb_path
name = '50'
self.assertEqual(thumb_path(Request("file:///tmp/foo.jpg"), name),
'thumbs/50/38a86208c36e59d4404db9e37ce04be863ef0335.jpg')
self.assertEqual(thumb_path(Request("file://foo.png"), name),
'thumbs/50/e55b765eba0ec7348e50a1df496040449071b96a.jpg')
self.assertEqual(thumb_path(Request("file:///tmp/foo"), name),
'thumbs/50/0329ad83ebb8e93ea7c7906d46e9ed55f7349a50.jpg')
self.assertEqual(thumb_path(Request("file:///tmp/some.name/foo"), name),
'thumbs/50/850233df65a5b83361798f532f1fc549cd13cbe9.jpg')
self.assertEqual(thumb_path(Request("file:///tmp/some.name/foo"), name,
response=Response("file:///tmp/some.name/foo"),
info=object()),
'thumbs/50/850233df65a5b83361798f532f1fc549cd13cbe9.jpg')
def test_convert_image(self):
SIZE = (100, 100)
# straigh forward case: RGB and JPEG
COLOUR = (0, 127, 255)
im = _create_image('JPEG', 'RGB', SIZE, COLOUR)
converted, _ = self.pipeline.convert_image(im)
self.assertEquals(converted.mode, 'RGB')
self.assertEquals(converted.getcolors(), [(10000, COLOUR)])
# check that thumbnail keep image ratio
thumbnail, _ = self.pipeline.convert_image(converted, size=(10, 25))
self.assertEquals(thumbnail.mode, 'RGB')
self.assertEquals(thumbnail.size, (10, 10))
# transparency case: RGBA and PNG
COLOUR = (0, 127, 255, 50)
im = _create_image('PNG', 'RGBA', SIZE, COLOUR)
converted, _ = self.pipeline.convert_image(im)
self.assertEquals(converted.mode, 'RGB')
self.assertEquals(converted.getcolors(), [(10000, (205, 230, 255))])