From 54b16a23784d48f1a3b56ff0c33bdf7fdfe46355 Mon Sep 17 00:00:00 2001
From: Subodh Iyengar <subodh@fb.com>
Date: Wed, 15 Nov 2017 17:59:20 -0800
Subject: [PATCH 1/1] Add unit test for timeout=0

Summary:
Add unit test for immediate timeout since
we're using it in a few places.

Reviewed By: yfeldblum

Differential Revision: D6327012

fbshipit-source-id: ea80763d080b06e2a43277118d3147dc8016f348
---
 folly/io/async/test/AsyncTimeoutTest.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/folly/io/async/test/AsyncTimeoutTest.cpp b/folly/io/async/test/AsyncTimeoutTest.cpp
index 629d6786..1d7c04fe 100644
--- a/folly/io/async/test/AsyncTimeoutTest.cpp
+++ b/folly/io/async/test/AsyncTimeoutTest.cpp
@@ -53,6 +53,20 @@ TEST(AsyncTimeout, schedule) {
   EXPECT_EQ(expected, value);
 }
 
+TEST(AsyncTimeout, schedule_immediate) {
+  int value = 0;
+  int const expected = 10;
+  EventBase manager;
+
+  auto observer = AsyncTimeout::schedule(
+      std::chrono::milliseconds(0), manager, [&]() noexcept {
+        value = expected;
+      });
+
+  manager.loop();
+  EXPECT_EQ(expected, value);
+}
+
 TEST(AsyncTimeout, cancel_make) {
   int value = 0;
   int const expected = 10;
-- 
2.34.1