From 87be2c7f1f4a161a6a2fb2cccc20062c9595f01f Mon Sep 17 00:00:00 2001
From: Giovanni Petrantoni <7008900+sinkingsugar@users.noreply.github.com>
Date: Tue, 12 Jan 2021 10:26:48 +0900
Subject: [PATCH] make switch tests less sensitive to time (#501)

* make switch tests less sensitive to time

* missing new line
---
 tests/helpers.nim    | 14 ++++++++++++++
 tests/testswitch.nim | 19 +++++++------------
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/tests/helpers.nim b/tests/helpers.nim
index 20cb856..29096ed 100644
--- a/tests/helpers.nim
+++ b/tests/helpers.nim
@@ -98,3 +98,17 @@ proc newBufferStream*(writeHandler: WriteHandler): TestBufferStream =
   new result
   result.writeHandler = writeHandler
   result.initStream()
+
+proc checkExpiringInternal(cond: proc(): bool): Future[bool] {.async, gcsafe.} =
+  {.gcsafe.}:
+    let start = Moment.now()
+    while true:
+      if Moment.now() > (start + chronos.seconds(5)):
+        return false
+      elif cond():
+        return true
+      else:
+        await sleepAsync(1.millis)
+
+template checkExpiring*(code: untyped): untyped =
+  checkExpiringInternal(proc(): bool = code)
diff --git a/tests/testswitch.nim b/tests/testswitch.nim
index b77cff9..205ac2c 100644
--- a/tests/testswitch.nim
+++ b/tests/testswitch.nim
@@ -228,8 +228,7 @@ suite "Switch":
     await switch2.disconnect(switch1.peerInfo)
 
     check not switch2.isConnected(switch1.peerInfo)
-    await sleepAsync(1.millis)
-    check not switch1.isConnected(switch2.peerInfo)
+    check await(checkExpiring((not switch1.isConnected(switch2.peerInfo))))
 
     checkTracker(LPChannelTrackerName)
     checkTracker(SecureConnTrackerName)
@@ -278,8 +277,7 @@ suite "Switch":
     await switch2.disconnect(switch1.peerInfo)
 
     check not switch2.isConnected(switch1.peerInfo)
-    await sleepAsync(1.millis)
-    check not switch1.isConnected(switch2.peerInfo)
+    check await(checkExpiring((not switch1.isConnected(switch2.peerInfo))))
 
     checkTracker(LPChannelTrackerName)
     checkTracker(SecureConnTrackerName)
@@ -334,8 +332,7 @@ suite "Switch":
     await switch2.disconnect(switch1.peerInfo)
 
     check not switch2.isConnected(switch1.peerInfo)
-    await sleepAsync(1.millis)
-    check not switch1.isConnected(switch2.peerInfo)
+    check await(checkExpiring((not switch1.isConnected(switch2.peerInfo))))
 
     checkTracker(LPChannelTrackerName)
     checkTracker(SecureConnTrackerName)
@@ -389,8 +386,7 @@ suite "Switch":
     await switch2.disconnect(switch1.peerInfo)
 
     check not switch2.isConnected(switch1.peerInfo)
-    await sleepAsync(1.millis)
-    check not switch1.isConnected(switch2.peerInfo)
+    check await(checkExpiring((not switch1.isConnected(switch2.peerInfo))))
 
     checkTracker(LPChannelTrackerName)
     checkTracker(SecureConnTrackerName)
@@ -444,8 +440,7 @@ suite "Switch":
     await switch2.disconnect(switch1.peerInfo)
 
     check not switch2.isConnected(switch1.peerInfo)
-    await sleepAsync(1.millis)
-    check not switch1.isConnected(switch2.peerInfo)
+    check await(checkExpiring((not switch1.isConnected(switch2.peerInfo))))
 
     checkTracker(LPChannelTrackerName)
     checkTracker(SecureConnTrackerName)
@@ -514,8 +509,8 @@ suite "Switch":
 
     check not switch2.isConnected(switch1.peerInfo)
     check not switch3.isConnected(switch1.peerInfo)
-    await sleepAsync(1.millis)
-    check not switch1.isConnected(switch2.peerInfo)
+    check await(checkExpiring((not switch1.isConnected(switch2.peerInfo))))
+    check await(checkExpiring((not switch1.isConnected(switch3.peerInfo))))
 
     checkTracker(LPChannelTrackerName)
     checkTracker(SecureConnTrackerName)