Fix POLLHUP test in libpdx UDS transport tests.

UDS channel events require a translation call to determine the real
event mask that was signaled by the service. Add the correct
translation call to fix the test.

Bug: None
Test: build; push libpdx_uds_tests; run libpdx_uds_tests
Change-Id: I18f0a5dcaf7c507d72ed5226df1fe0e2c2e3dd98
diff --git a/libs/vr/libpdx_uds/service_framework_tests.cpp b/libs/vr/libpdx_uds/service_framework_tests.cpp
index 8891600..9e31e82 100644
--- a/libs/vr/libpdx_uds/service_framework_tests.cpp
+++ b/libs/vr/libpdx_uds/service_framework_tests.cpp
@@ -26,6 +26,7 @@
 using android::pdx::Channel;
 using android::pdx::ChannelReference;
 using android::pdx::ClientBase;
+using android::pdx::ErrorStatus;
 using android::pdx::LocalChannelHandle;
 using android::pdx::LocalHandle;
 using android::pdx::Message;
@@ -379,6 +380,14 @@
                         data_array.size() * sizeof(int), nullptr, 0));
   }
 
+  Status<int> GetEventMask(int events) {
+    if (auto* client_channel = GetChannel()) {
+      return client_channel->GetEventMask(events);
+    } else {
+      return ErrorStatus(EINVAL);
+    }
+  }
+
   using ClientBase<TestClient>::event_fd;
 
   enum : size_t { kMaxPayload = MAX_IMPULSE_LENGTH };
@@ -634,7 +643,9 @@
 
   count = epoll_wait(client->event_fd(), &event, 1, -1);
   ASSERT_EQ(1, count);
-  ASSERT_TRUE((EPOLLHUP & event.events) != 0);
+  auto event_status = client->GetEventMask(event.events);
+  ASSERT_TRUE(event_status.ok());
+  ASSERT_TRUE((EPOLLHUP & event_status.get()) != 0);
 }
 
 TEST_F(ServiceFrameworkTest, LargeDataSum) {