Fix some audio tests (#3841)

* Fix some audio tests

* make style

* fix

* make style

tests/pipelines/audioldm/test_audioldm.py

@@ -36,7 +36,7 @@ from diffusers import (
     PNDMScheduler,
     UNet2DConditionModel,
 )
-from diffusers.utils import slow, torch_device
+from diffusers.utils import is_xformers_available, slow, torch_device
 from diffusers.utils.testing_utils import enable_full_determinism
 
 from ..pipeline_params import TEXT_TO_AUDIO_BATCH_PARAMS, TEXT_TO_AUDIO_PARAMS
@@ -361,9 +361,15 @@ class AudioLDMPipelineFastTests(PipelineTesterMixin, unittest.TestCase):
     def test_inference_batch_single_identical(self):
         self._test_inference_batch_single_identical(test_mean_pixel_difference=False)
 
+    @unittest.skipIf(
+        torch_device != "cuda" or not is_xformers_available(),
+        reason="XFormers attention is only available with CUDA and `xformers` installed",
+    )
+    def test_xformers_attention_forwardGenerator_pass(self):
+        self._test_xformers_attention_forwardGenerator_pass(test_mean_pixel_difference=False)
+
 
 @slow
-# @require_torch_gpu
 class AudioLDMPipelineSlowTests(unittest.TestCase):
     def tearDown(self):
         super().tearDown()

tests/pipelines/test_pipelines_common.py

@@ -640,7 +640,9 @@ class PipelineTesterMixin:
     def test_xformers_attention_forwardGenerator_pass(self):
         self._test_xformers_attention_forwardGenerator_pass()
 
-    def _test_xformers_attention_forwardGenerator_pass(self, test_max_difference=True, expected_max_diff=1e-4):
+    def _test_xformers_attention_forwardGenerator_pass(
+        self, test_max_difference=True, test_mean_pixel_difference=True, expected_max_diff=1e-4
+    ):
         if not self.test_xformers_attention:
             return
 
@@ -660,6 +662,7 @@ class PipelineTesterMixin:
             max_diff = np.abs(output_with_offload - output_without_offload).max()
             self.assertLess(max_diff, expected_max_diff, "XFormers attention should not affect the inference results")
 
+        if test_mean_pixel_difference:
             assert_mean_pixel_difference(output_with_offload[0], output_without_offload[0])
 
     def test_progress_bar(self):