chore: import upstream snapshot with attribution

test/dataset/test_image.py

@@ -0,0 +1,60 @@
+#   Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Filename:
+    test_image.py
+Description:
+    This script test image resize,flip and chw.
+"""
+
+import os
+import unittest
+
+import numpy as np
+
+from paddle.dataset import image
+
+__all__ = []
+
+
+class Image(unittest.TestCase):
+    """
+    This function is test image resize,flip and chw.
+    """
+
+    def test_resize_flip_chw(self):
+        """resize"""
+        img_dir = os.path.join(
+            os.path.dirname(os.path.abspath(__file__)), 'cat.jpg'
+        )
+        images = image.load_image(img_dir)
+        images = image.resize_short(images, 256)
+        self.assertEqual(256, min(images.shape[:2]))
+        self.assertEqual(3, images.shape[2])
+
+        # flip
+        images = image.left_right_flip(images)
+        images2 = np.flip(images, 1)
+        self.assertEqual(images.all(), images2.all())
+
+        # to_chw
+        height, width, channel = images.shape
+        images = image.to_chw(images)
+        self.assertEqual(channel, images.shape[0])
+        self.assertEqual(height, images.shape[1])
+        self.assertEqual(width, images.shape[2])
+
+
+if __name__ == '__main__':
+    unittest.main()