Merge "reset arch task executor at the end of QueryExecutorTest" into androidx-master-dev am: 007ac095e4

Change-Id: If30dfdee4cce4c3027c9be3acf59c8df88f8be4b
diff --git a/room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/QueryExecutorTest.java b/room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/QueryExecutorTest.java
index 0d3ddb0..c0d42f3 100644
--- a/room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/QueryExecutorTest.java
+++ b/room/integration-tests/testapp/src/androidTest/java/androidx/room/integration/testapp/test/QueryExecutorTest.java
@@ -99,6 +99,7 @@
 
     @After
     public void tearDown() {
+        ArchTaskExecutor.getInstance().setDelegate(null);
         mTestDatabase.close();
     }