From 9e98400de028a8a38f98630b17cd1f8541419077 Mon Sep 17 00:00:00 2001
From: Sergei Shulepov <sergei@parity.io>
Date: Thu, 10 Jun 2021 10:49:16 +0200
Subject: [PATCH] Update tests/diff.rs
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Co-authored-by: Alexander Theißen <alex.theissen@me.com>
---
 tests/diff.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/diff.rs b/tests/diff.rs
index 0c91eb2..12200f4 100644
--- a/tests/diff.rs
+++ b/tests/diff.rs
@@ -66,7 +66,7 @@ fn run_diff_test<F: FnOnce(&[u8]) -> Vec<u8>>(test_dir: &str, name: &str, test:
 			}
 		}
 
-		if std::env::var("BLESS").is_ok() {
+		if std::env::var_os("BLESS").is_some() {
 			dump(&expected_path, actual_wat.as_bytes()).expect("Failed to write to expected");
 		} else {
 			panic!();