test: avoid PCH diagnostic text checks

Signed-off-by: Rui Luo <ruluo@nvidia.com>

Author: rluo8

cuda_core/tests/test_program.py

@@ -1532,10 +1532,10 @@ def test_nvrtc_debug_close_tolerates_removed_source(init_cuda):
 
 @nvrtc_pch_available
 @pytest.mark.skipif("NVRTC_DISABLE_PCH" in os.environ, reason="PCH is disabled by NVRTC_DISABLE_PCH")
-@pytest.mark.thread_unsafe(reason="creates and reuses PCH files in the shared pytest tmp_path")
+@pytest.mark.thread_unsafe(reason="creates PCH files in the shared pytest tmp_path")
 @pytest.mark.agent_authored(model="gpt-6-sol")
-def test_nvrtc_automatic_pch_reuse_preserves_compiled_kernel(init_cuda, tmp_path):
-    """Automatic PCH reuse reports no new creation and preserves kernel output."""
+def test_nvrtc_automatic_pch_preserves_compiled_kernel(init_cuda, tmp_path):
+    """Automatic PCH compilation preserves kernel output and reports creation status."""
     from io import StringIO
 
     import numpy as np
@@ -1556,10 +1556,7 @@ def test_nvrtc_automatic_pch_reuse_preserves_compiled_kernel(init_cuda, tmp_path
     actual = np.empty(1, dtype=np.int32)
     try:
         buffer = init_cuda.allocate(4, stream=stream)
-        for expected_status, expected_message in (
-            (PCHStatusType.CREATED, "creating precompiled header file"),
-            (PCHStatusType.NOT_ATTEMPTED, "using precompiled header file"),
-        ):
+        for expected_status in (PCHStatusType.CREATED, PCHStatusType.NOT_ATTEMPTED):
             program = Program(
                 code,
                 "c++",
@@ -1576,9 +1573,8 @@ def test_nvrtc_automatic_pch_reuse_preserves_compiled_kernel(init_cuda, tmp_path
                 assert actual[0] == 37
                 if expected_status == PCHStatusType.CREATED and program.pch_status == PCHStatusType.NOT_ATTEMPTED:
                     pytest.skip("NVRTC did not create an automatic PCH; kernel output was verified")
-                assert program.pch_status == expected_status
-                assert expected_message in logs.getvalue()
-                assert list(tmp_path.glob("*.pch"))
+                assert program.pch_status == expected_status, logs.getvalue()
+                assert list(tmp_path.glob("*.pch")), logs.getvalue()
             finally:
                 program.close()
     finally: