string expected_serialized;
  expected_op_def->SerializeToString(&expected_serialized);
  string actual_string(reinterpret_cast<const char*>(buffer->data),
                       buffer->length);
  EXPECT_EQ(expected_serialized, actual_string);

  TF_GraphGetOpDef(graph, "MyFakeOp", buffer, status);
  EXPECT_EQ(TF_NOT_FOUND, TF_GetCode(status));
  ExpectHasSubstr(TF_Message(status),

        String actualString = smbCom.toString();

        // Check for key parts of the string representation
        org.junit.jupiter.api.Assertions.assertTrue(actualString.startsWith("SmbComCreateDirectory["),
                "String should start with the class name.");
        org.junit.jupiter.api.Assertions.assertTrue(actualString.contains("command=SMB_COM_CREATE_DIRECTORY"),

        NameQueryRequest request = new NameQueryRequest(mockConfig, mockName);
        String expectedStringPrefix = "NameQueryRequest[";
        String actualString = request.toString();

        assertTrue(actualString.startsWith(expectedStringPrefix));
        assertTrue(actualString.endsWith("]"));
        // Further verification could involve mocking super.toString() if needed
    }

        // A direct string comparison might be brittle, so we check for the class name and brackets.
        String actualString = response.toString();
        assertTrue(actualString.startsWith("Trans2SetFileInformationResponse["),
                "The string representation should start with the class name.");
        assertTrue(actualString.endsWith("]"), "The string representation should end with a bracket.");
    }