diff --git a/packages/DocumentsUI/tests/src/com/android/documentsui/ActivityTest.java b/packages/DocumentsUI/tests/src/com/android/documentsui/ActivityTest.java
index bad2188..683fd6c 100644
--- a/packages/DocumentsUI/tests/src/com/android/documentsui/ActivityTest.java
+++ b/packages/DocumentsUI/tests/src/com/android/documentsui/ActivityTest.java
@@ -117,6 +117,8 @@
         mClient = mResolver.acquireUnstableContentProviderClient(getTestingProviderAuthority());
         mDocsHelper = new DocumentsProviderHelper(getTestingProviderAuthority(), mClient);
 
+        setupTestingRoots();
+
         launchActivity();
         resetStorage();
     }