From ee4806f47ae594ea20b5296dd913ed67d7809b86 Mon Sep 17 00:00:00 2001
From: Brian Vaughn <bvaughn@fb.com>
Date: Mon, 26 Aug 2019 13:08:35 -0700
Subject: [PATCH] Fixed flushing problem with tests

---
 packages/react-devtools-shared/src/__tests__/utils.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/react-devtools-shared/src/__tests__/utils.js b/packages/react-devtools-shared/src/__tests__/utils.js
index 4c28732e65df2..bd652d7381c65 100644
--- a/packages/react-devtools-shared/src/__tests__/utils.js
+++ b/packages/react-devtools-shared/src/__tests__/utils.js
@@ -18,11 +18,13 @@ export function act(callback: Function): void {
   });
 
   // Flush Bridge operations
-  actDOM(() => {
-    actTestRenderer(() => {
-      jest.runAllTimers();
+  while (global.mockGetTimersCount() > 0) {
+    actDOM(() => {
+      actTestRenderer(() => {
+        jest.runAllTimers();
+      });
     });
-  });
+  }
 }
 
 export async function actAsync(