[user-cuda-streams] Add cuda streams test suite (#162901)

Pull Request resolved: https://github.com/pytorch/pytorch/pull/162901
Approved by: https://github.com/williamwen42
ghstack dependencies: #162903, #164343, #164344, #164507

test/dynamo/test_streams.py

@@ -0,0 +1,35 @@
+# Owner(s): ["module: dynamo"]
+
+import torch
+import torch._dynamo.test_case
+import torch._dynamo.testing
+from torch.testing._internal.common_utils import requires_cuda
+
+
+class TestStreams(torch._dynamo.test_case.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super().tearDownClass()
+
+    @requires_cuda
+    def test_run_opcheck(self):
+        from torch._dynamo.variables.streams import fork_stream, join_stream
+        from torch.library import opcheck
+
+        sample_inputs = [
+            (0, torch.device("cuda:0"), 1, torch.device("cuda:1")),
+            (2, torch.device("cuda:2"), 3, torch.device("cuda:1")),
+        ]
+        for args in sample_inputs:
+            opcheck(fork_stream, args)
+            opcheck(join_stream, args)
+
+
+if __name__ == "__main__":
+    from torch._dynamo.test_case import run_tests
+
+    run_tests()