Expose OnRun to Rust

Change-Id: I2760992cbb98b3bf3b99c7246c4ac1557cf54a0f
Signed-off-by: Brian Silverman <bsilver16384@gmail.com>
diff --git a/aos/events/event_loop_runtime_test.cc b/aos/events/event_loop_runtime_test.cc
index 81f3be3..47e56b8 100644
--- a/aos/events/event_loop_runtime_test.cc
+++ b/aos/events/event_loop_runtime_test.cc
@@ -42,7 +42,9 @@
         ->Setup(
             ping_event_loop->monotonic_now() + std::chrono::milliseconds(10),
             std::chrono::milliseconds(10));
+    ASSERT_EQ(starting_count, started_test_count());
     factory.Run();
+    ASSERT_EQ(starting_count + 1, started_test_count());
     EXPECT_EQ(2, iteration);
   }
   ASSERT_EQ(starting_count + 1, completed_test_count());