From 0a13e0225b4ca8af38d9731168cc17292c845f84 Mon Sep 17 00:00:00 2001
From: Ayrat Badykov <ayratin555@gmail.com>
Date: Mon, 1 Jul 2019 17:25:18 +0300
Subject: [PATCH] fix test

---
 .../lib/ethereum_jsonrpc/rolling_window.ex       | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/rolling_window.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/rolling_window.ex
index 82e4a54072..0f83568f33 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/rolling_window.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/rolling_window.ex
@@ -211,12 +211,16 @@ defmodule EthereumJSONRPC.RollingWindow do
   """
   @spec inspect(table :: atom, key :: term()) :: nonempty_list(non_neg_integer)
   def inspect(table, key) do
-    case :ets.lookup(table, key) do
-      [{_, current_window, windows}] ->
-        [current_window | windows]
-
-      _ ->
-        []
+    if :ets.whereis(table) == :undefined do
+      []
+    else
+      case :ets.lookup(table, key) do
+        [{_, current_window, windows}] ->
+          [current_window | windows]
+
+        _ ->
+          []
+      end
     end
   end
 end