Ajout du GUI

kivy/tests/test_image.py

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+import unittest
+import io
+import os
+import tempfile
+from kivy import setupconfig
+
+
+class ImageTestCase(unittest.TestCase):
+
+    def setUp(self):
+        from kivy.core.window import Window
+        from kivy.core.image import Image
+        import os
+        self.cls = Image
+        self.image = os.path.join(os.path.dirname(__file__), 'test_button.png')
+        print(self.image)
+        self.root = Image(self.image)
+
+    def test_keep_data(self):
+        root = self.root
+        texture = root.texture
+        self.assertEqual(root._image._data[0].data, None)
+        i1 = self.cls(self.image, keep_data=True)
+        if not i1._image._data[0].data:
+            self.fail('Image has no data even with keep_data = True')
+
+    @unittest.skip("Travis on Xenial don't have SDL_image >= 2.0.5")
+    def test_save_into_bytesio(self):
+        Image = self.cls
+
+        if setupconfig.PLATFORM == "darwin":
+            # XXX on OSX CI Builder, img_sdl2 is not used
+            # therefore the test below wont work yet with imageio only.
+            return
+
+        # load kivy logo
+        img = Image.load("data/logo/kivy-icon-512.png")
+        self.assertIsNotNone(img)
+
+        # try to save without any format
+        with self.assertRaises(Exception) as context:
+            bio = io.BytesIO()
+            img.save(bio)
+
+        # save it in png
+        bio = io.BytesIO()
+        # if False, then there is no provider
+        self.assertTrue(img.save(bio, fmt="png"))
+        pngdata = bio.read()
+        self.assertTrue(len(pngdata) > 0)
+
+        # try to save in a filename
+        try:
+            _, filename = tempfile.mkstemp(suffix=".png")
+            self.assertTrue(img.save(filename, fmt="png"))
+        finally:
+            os.unlink(filename)
+
+        # XXX Test wrote but temporary commented
+        # XXX because of the issue #6123 on OSX
+        # XXX https://github.com/kivy/kivy/issues/6123
+        # with open(filename, "rb") as fd2:
+        #     pngdatafile = fd2.read()
+        # # check the png file data is the same as bytesio
+        # self.assertTrue(pngdata == pngdatafile)
+
+        # save it in jpeg
+        bio = io.BytesIO()
+        # if False, then there is no provider
+        self.assertTrue(img.save(bio, fmt="jpg"))
+        self.assertTrue(len(bio.read()) > 0)
+
+        with tempfile.NamedTemporaryFile(suffix=".jpg") as fd:
+            self.assertTrue(img.save(fd.name))