fix warnings in prototype transforms test suite (#6785)

* fix, ignore, or assert warnings for consistency tests

* fix, ignore, or assert warnings for kernel infos

* fix to_image_tensor for numpy inputs

* make image from numpy contiguous

* fix test

Author: pmeier

test/prototype_transforms_kernel_infos.py

@@ -1,6 +1,7 @@
 import functools
 import itertools
 import math
+import re
 
 import numpy as np
 import pytest
@@ -172,6 +173,12 @@ def sample_inputs_horizontal_flip_video():
         KernelInfo(
             F.horizontal_flip_bounding_box,
             sample_inputs_fn=sample_inputs_horizontal_flip_bounding_box,
+            test_marks=[
+                TestMark(
+                    ("TestKernels", "test_scripted_vs_eager"),
+                    pytest.mark.filterwarnings(f"ignore:{re.escape('operator() profile_node %72')}:UserWarning"),
+                )
+            ],
         ),
         KernelInfo(
             F.horizontal_flip_mask,
@@ -443,10 +450,10 @@ def transform(bbox):
         transformed_points = np.matmul(points, affine_matrix.T)
         out_bbox = torch.tensor(
             [
-                np.min(transformed_points[:, 0]),
-                np.min(transformed_points[:, 1]),
-                np.max(transformed_points[:, 0]),
-                np.max(transformed_points[:, 1]),
+                np.min(transformed_points[:, 0]).item(),
+                np.min(transformed_points[:, 1]).item(),
+                np.max(transformed_points[:, 0]).item(),
+                np.max(transformed_points[:, 1]).item(),
             ],
             dtype=bbox.dtype,
         )

test/test_prototype_transforms_consistency.py

@@ -1,6 +1,7 @@
 import enum
 import inspect
 import random
+import re
 from collections import defaultdict
 from importlib.machinery import SourceFileLoader
 from pathlib import Path
@@ -598,6 +599,7 @@ def check_call_consistency(
         for idx, args_kwargs in enumerate(config.args_kwargs)
     ],
 )
+@pytest.mark.filterwarnings("ignore")
 def test_call_consistency(config, args_kwargs):
     args, kwargs = args_kwargs
 
@@ -671,21 +673,21 @@ def test_random_apply(self, p):
         check_call_consistency(prototype_transform, legacy_transform)
 
     # We can't test other values for `p` since the random parameter generation is different
-    @pytest.mark.parametrize("p", [(0, 1), (1, 0)])
-    def test_random_choice(self, p):
+    @pytest.mark.parametrize("probabilities", [(0, 1), (1, 0)])
+    def test_random_choice(self, probabilities):
         prototype_transform = prototype_transforms.RandomChoice(
             [
                 prototype_transforms.Resize(256),
                 legacy_transforms.CenterCrop(224),
             ],
-            p=p,
+            probabilities=probabilities,
         )
         legacy_transform = legacy_transforms.RandomChoice(
             [
                 legacy_transforms.Resize(256),
                 legacy_transforms.CenterCrop(224),
             ],
-            p=p,
+            p=probabilities,
         )
 
         check_call_consistency(prototype_transform, legacy_transform)
@@ -702,7 +704,8 @@ def test_pil_to_tensor(self):
             assert_equal(prototype_transform(image_pil), legacy_transform(image_pil))
 
     def test_to_tensor(self):
-        prototype_transform = prototype_transforms.ToTensor()
+        with pytest.warns(UserWarning, match=re.escape("The transform `ToTensor()` is deprecated")):
+            prototype_transform = prototype_transforms.ToTensor()
         legacy_transform = legacy_transforms.ToTensor()
 
         for image in make_images(extra_dims=[()]):

test/test_prototype_transforms_functional.py

@@ -1012,17 +1012,10 @@ def test_normalize_output_type():
 def test_to_image_tensor(inpt):
     output = F.to_image_tensor(inpt)
     assert isinstance(output, torch.Tensor)
+    assert output.shape == (3, 32, 32)
 
     assert np.asarray(inpt).sum() == output.sum().item()
 
-    if isinstance(inpt, PIL.Image.Image):
-        # we can't check this option
-        # as PIL -> numpy is always copying
-        return
-
-    inpt[0, 0, 0] = 11
-    assert output[0, 0, 0] == 11
-
 
 @pytest.mark.parametrize(
     "inpt",

torchvision/prototype/transforms/functional/_type_conversion.py

@@ -27,7 +27,7 @@ def decode_video_with_av(encoded_video: torch.Tensor) -> Tuple[torch.Tensor, tor
 @torch.jit.unused
 def to_image_tensor(image: Union[torch.Tensor, PIL.Image.Image, np.ndarray]) -> features.Image:
     if isinstance(image, np.ndarray):
-        output = torch.from_numpy(image)
+        output = torch.from_numpy(image).permute((2, 0, 1)).contiguous()
     elif isinstance(image, PIL.Image.Image):
         output = pil_to_tensor(image)
     else:  # isinstance(inpt, torch.Tensor):