Add tearDown method to LoRA tests. (#6660)

* update

* update

tests/lora/test_lora_layers_old_backend.py

@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import copy
+import gc
 import os
 import random
 import tempfile
@@ -1662,6 +1663,11 @@ class UNet3DConditionLoRAModelTests(unittest.TestCase):
 @deprecate_after_peft_backend
 @require_torch_gpu
 class LoraIntegrationTests(unittest.TestCase):
+    def tearDown(self):
+        super().tearDown()
+        gc.collect()
+        torch.cuda.empty_cache()
+
     def test_dreambooth_old_format(self):
         generator = torch.Generator("cpu").manual_seed(0)
 

tests/lora/test_lora_layers_peft.py

@@ -13,6 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 import copy
+import gc
 import importlib
 import os
 import tempfile
@@ -1205,6 +1206,11 @@ class StableDiffusionLoRATests(PeftLoraLoaderMixinTests, unittest.TestCase):
         "latent_channels": 4,
     }
 
+    def tearDown(self):
+        super().tearDown()
+        gc.collect()
+        torch.cuda.empty_cache()
+
     @slow
     @require_torch_gpu
     def test_integration_move_lora_cpu(self):
@@ -1434,6 +1440,11 @@ class StableDiffusionXLLoRATests(PeftLoraLoaderMixinTests, unittest.TestCase):
         "sample_size": 128,
     }
 
+    def tearDown(self):
+        super().tearDown()
+        gc.collect()
+        torch.cuda.empty_cache()
+
 
 @slow
 @require_torch_gpu
@@ -1468,11 +1479,9 @@ class LoraIntegrationTests(PeftLoraLoaderMixinTests, unittest.TestCase):
     }
 
     def tearDown(self):
-        import gc
-
+        super().tearDown()
         gc.collect()
         torch.cuda.empty_cache()
-        gc.collect()
 
     def test_dreambooth_old_format(self):
         generator = torch.Generator("cpu").manual_seed(0)
@@ -1757,11 +1766,9 @@ class LoraSDXLIntegrationTests(PeftLoraLoaderMixinTests, unittest.TestCase):
     }
 
     def tearDown(self):
-        import gc
-
+        super().tearDown()
         gc.collect()
         torch.cuda.empty_cache()
-        gc.collect()
 
     def test_sdxl_0_9_lora_one(self):
         generator = torch.Generator().manual_seed(0)