Fix TimingModuleTest in OSS (#43422)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/43422

After my changes in D54496604, this test now requires the main looper to progress as well, to dispatch the right callback.

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D54776392

fbshipit-source-id: ba272a08d4b88d1c3301618eed1a03253e615b84

packages/react-native/ReactAndroid/src/test/java/com/facebook/react/modules/timing/TimingModuleTest.kt

@@ -8,6 +8,7 @@
 package com.facebook.react.modules.timing
 
 import android.content.Context
+import android.os.Looper
 import android.view.Choreographer.FrameCallback
 import com.facebook.react.bridge.Arguments
 import com.facebook.react.bridge.CatalystInstance
@@ -44,6 +45,7 @@ import org.mockito.Mockito.`when` as whenever
 import org.mockito.invocation.InvocationOnMock
 import org.mockito.stubbing.Answer
 import org.robolectric.RobolectricTestRunner
+import org.robolectric.Shadows.shadowOf
 
 @RunWith(RobolectricTestRunner::class)
 class TimingModuleTest {
@@ -138,6 +140,8 @@ class TimingModuleTest {
   }
 
   private fun stepChoreographerFrame() {
+    shadowOf(Looper.getMainLooper()).idle()
+
     val callback = postFrameCallbackHandler.getAndResetFrameCallback()
     val idleCallback = idlePostFrameCallbackHandler.getAndResetFrameCallback()
     currentTimeNs += FRAME_TIME_NS