made MaskFormerModelTest faster (huggingface#15942)

Author: FrancescoSaverioZuppichini

tests/maskformer/test_modeling_maskformer.py

@@ -20,7 +20,7 @@
 import numpy as np
 
 from tests.test_modeling_common import floats_tensor
-from transformers import MaskFormerConfig, is_torch_available, is_vision_available
+from transformers import DetrConfig, MaskFormerConfig, SwinConfig, is_torch_available, is_vision_available
 from transformers.file_utils import cached_property
 from transformers.testing_utils import require_torch, require_vision, slow, torch_device
 
@@ -47,12 +47,12 @@ def __init__(
         batch_size=2,
         is_training=True,
         use_auxiliary_loss=False,
-        num_queries=100,
+        num_queries=10,
         num_channels=3,
-        min_size=384,
-        max_size=640,
-        num_labels=150,
-        mask_feature_size=256,
+        min_size=32 * 4,
+        max_size=32 * 6,
+        num_labels=4,
+        mask_feature_size=32,
     ):
         self.parent = parent
         self.batch_size = batch_size
@@ -79,11 +79,20 @@ def prepare_config_and_inputs(self):
         return config, pixel_values, pixel_mask, mask_labels, class_labels
 
     def get_config(self):
-        return MaskFormerConfig(
-            num_queries=self.num_queries,
+        return MaskFormerConfig.from_backbone_and_decoder_configs(
+            backbone_config=SwinConfig(
+                depths=[1, 1, 1, 1],
+            ),
+            decoder_config=DetrConfig(
+                decoder_ffn_dim=128,
+                num_queries=self.num_queries,
+                decoder_attention_heads=2,
+                d_model=self.mask_feature_size,
+            ),
+            mask_feature_size=self.mask_feature_size,
+            fpn_feature_size=self.mask_feature_size,
             num_channels=self.num_channels,
             num_labels=self.num_labels,
-            mask_feature_size=self.mask_feature_size,
         )
 
     def prepare_config_and_inputs_for_common(self):
@@ -161,7 +170,6 @@ def comm_check_on_output(result):
 
 
 @require_torch
-@slow
 class MaskFormerModelTest(ModelTesterMixin, unittest.TestCase):
 
     all_model_classes = (MaskFormerModel, MaskFormerForInstanceSegmentation) if is_torch_available() else ()
@@ -221,11 +229,11 @@ def test_model_from_pretrained(self):
             model = MaskFormerModel.from_pretrained(model_name)
             self.assertIsNotNone(model)
 
-    @slow
     def test_model_with_labels(self):
+        size = (self.model_tester.min_size,) * 2
         inputs = {
-            "pixel_values": torch.randn((2, 3, 384, 384)),
-            "mask_labels": torch.randn((2, 10, 384, 384)),
+            "pixel_values": torch.randn((2, 3, *size)),
+            "mask_labels": torch.randn((2, 10, *size)),
             "class_labels": torch.zeros(2, 10).long(),
         }