Added test

tests/stdlib/thttpclient.nim

@@ -154,8 +154,20 @@ proc ipv6Test() =
   serverFd.closeSocket()
   client.close()
 
+proc longTimeoutTest() =
+# Issue #2753
+  try:
+    var client = newHttpClient(timeout = 1000)
+    var resp = client.request("https://au.yahoo.com")
+    client.close()
+  except AssertionError:
+    doAssert false, "Exceptions should not be raised"
+  except:
+    discard
+
 syncTest()
 waitFor(asyncTest())
 ipv6Test()
+longTimeoutTest()
 
 echo "OK"