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tests.py
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tests.py
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try:
from cStringIO import StringIO
except ImportError:
from StringIO import StringIO
import unittest
import magic
try:
from PIL import Image
except ImportError:
import Image
import requests
import server
from muto.client import MutoClient
from muto.image import MutoImage
class MutoTestCaseBase(unittest.TestCase):
TEST_IMAGES = [
'https://muto-tests.s3.amazonaws.com/01.png',
'https://muto-tests.s3.amazonaws.com/02.jpg',
]
def setUp(self):
server.app.config['TESTING'] = True
self.app = server.app.test_client()
def tearDown(self):
pass
def get_pil_image(self, url):
resp = requests.get(url)
img = Image.open(StringIO(resp.content))
return img
def get_muto_client(self):
return MutoClient('http://localhost:5000/api/v1')
class MutoTestCase(MutoTestCaseBase):
def test_noop_processing_from_url(self):
client = self.get_muto_client()
source_url = self.TEST_IMAGES[1]
client.from_url(source_url)
muto_image = client.process()
self.assertIsInstance(muto_image, MutoImage)
assert muto_image.url.startswith('http')
def test_resize_width_and_height(self):
client = self.get_muto_client()
w, h = 200, 100
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.resize(width=w, height=h)
muto_image = client.process()
self.assertEqual(muto_image.data['result']['size'][0], w)
self.assertEqual(muto_image.data['result']['size'][1], h)
pil_image = self.get_pil_image(muto_image.url)
self.assertEqual(pil_image.size[0], w)
self.assertEqual(pil_image.size[1], h)
def test_resize_width_only(self):
client = self.get_muto_client()
w = 200
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.resize(width=w)
muto_image = client.process()
original = muto_image.data['original']['size']
result = muto_image.data['result']['size']
self.assertEqual(result[0], w)
self.assertEqual(result[1], original[1])
pil_image = self.get_pil_image(muto_image.url)
self.assertEqual(pil_image.size[0], w)
self.assertEqual(pil_image.size[1], original[1])
def test_resize_height_only(self):
client = self.get_muto_client()
h = 200
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.resize(height=h)
muto_image = client.process()
original = muto_image.data['original']['size']
result = muto_image.data['result']['size']
self.assertEqual(result[0], original[0])
self.assertEqual(result[1], h)
pil_image = self.get_pil_image(muto_image.url)
self.assertEqual(pil_image.size[0], original[0])
self.assertEqual(pil_image.size[1], h)
def test_transform_resize(self):
client = self.get_muto_client()
w, h = 160, 160
geometry = '%dx%d' % (w, h)
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.transform(resize=geometry)
muto_image = client.process()
result = muto_image.data['result']['size']
self.assertLessEqual(result[0], w)
self.assertLessEqual(result[1], h)
pil_image = self.get_pil_image(muto_image.url)
self.assertLessEqual(pil_image.size[0], w)
self.assertLessEqual(pil_image.size[1], h)
def test_transform_resize_width_only(self):
client = self.get_muto_client()
w = 160
geometry = '%dx' % w
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.transform(resize=geometry)
muto_image = client.process()
original = muto_image.data['original']['size']
result = muto_image.data['result']['size']
expected_height = round(original[1] * result[0]/float(original[0]))
self.assertEqual(result[0], w)
self.assertEqual(result[1], expected_height)
pil_image = self.get_pil_image(muto_image.url)
self.assertEqual(pil_image.size[0], w)
self.assertEqual(result[1], expected_height)
def test_transform_resize_height_only(self):
client = self.get_muto_client()
h = 160
geometry = 'x%d' % h
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.transform(resize=geometry)
muto_image = client.process()
original = muto_image.data['original']['size']
result = muto_image.data['result']['size']
expected_width = round(original[0] * result[1]/float(original[1]))
self.assertEqual(result[1], h)
self.assertEqual(result[0], expected_width)
pil_image = self.get_pil_image(muto_image.url)
self.assertEqual(result[1], h)
self.assertEqual(pil_image.size[0], expected_width)
def test_quality(self):
client = self.get_muto_client()
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.format = 'jpg'
client.compression_quality = 100
high = client.process()
client.compression_quality = 1
low = client.process()
ratio = high.data['result']['filesize']/low.data['result']['filesize']
self.assertGreater(ratio, 10)
def test_format(self):
client = self.get_muto_client()
source_url = self.TEST_IMAGES[0]
client.from_url(source_url)
client.format = 'jpg'
img_jpg = client.process()
img_jpg_mime = magic.from_buffer(img_jpg.read(), mime=True)
self.assertEqual(img_jpg_mime, 'image/jpeg')
client.format = 'gif'
img_gif = client.process()
img_gif_mime = magic.from_buffer(img_gif.read(), mime=True)
self.assertEqual(img_gif_mime, 'image/gif')
class MutoTinkerTestCase(MutoTestCaseBase):
pass
if __name__ == '__main__':
unittest.main(defaultTest='MutoTestCase')