Move numpy-images to their own test case.

Change-Id: Ie6b02c7647487c1df9d4e70e9b8eed70dc8b8fe3

Author: MarkDaoust

tests/test_content.py

@@ -82,10 +82,23 @@ class HasEnum:
     choice: Choices
 
 
+
+
 class UnitTests(parameterized.TestCase):
+
     @parameterized.named_parameters(
-        ["PIL", PIL.Image.open(TEST_PNG_PATH)],
         ["RGBA", PIL.Image.fromarray(np.zeros([6, 6, 4], dtype=np.uint8))],
+        ["RGB", PIL.Image.fromarray(np.zeros([6, 6, 3], dtype=np.uint8))],
+        ["P", PIL.Image.fromarray(np.zeros([6, 6, 3], dtype=np.uint8)).convert("P")],
+    )
+    def test_numpy_to_blob(self, image):
+        blob = content_types.image_to_blob(image)
+        self.assertIsInstance(blob, protos.Blob)
+        self.assertEqual(blob.mime_type, "image/webp")
+        self.assertStartsWith(blob.data, b"RIFF \x00\x00\x00WEBPVP8L")
+
+    @parameterized.named_parameters(
+        ["PIL", PIL.Image.open(TEST_PNG_PATH)],
         ["IPython", IPython.display.Image(filename=TEST_PNG_PATH)],
     )
     def test_png_to_blob(self, image):
@@ -96,7 +109,6 @@ def test_png_to_blob(self, image):
 
     @parameterized.named_parameters(
         ["PIL", PIL.Image.open(TEST_JPG_PATH)],
-        ["RGB", PIL.Image.fromarray(np.zeros([6, 6, 3], dtype=np.uint8))],
         ["IPython", IPython.display.Image(filename=TEST_JPG_PATH)],
     )
     def test_jpg_to_blob(self, image):
@@ -107,7 +119,6 @@ def test_jpg_to_blob(self, image):
 
     @parameterized.named_parameters(
         ["PIL", PIL.Image.open(TEST_GIF_PATH)],
-        ["P", PIL.Image.fromarray(np.zeros([6, 6, 3], dtype=np.uint8)).convert("P")],
         ["IPython", IPython.display.Image(filename=TEST_GIF_PATH)],
     )
     def test_gif_to_blob(self, image):