From a65aedbfb741ee58f3728f051972e3253b73456c Mon Sep 17 00:00:00 2001
From: Michael Miller <icy.arctic.fox@gmail.com>
Date: Thu, 30 Aug 2018 14:15:07 -0600
Subject: [PATCH] Implement #to_not

---
 src/spectator/expectation.cr | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/spectator/expectation.cr b/src/spectator/expectation.cr
index 6a152ea..9c9b4b4 100644
--- a/src/spectator/expectation.cr
+++ b/src/spectator/expectation.cr
@@ -16,5 +16,16 @@ module Spectator
         raise ExpectationFailedError.new
       end
     end
+
+    def to_not(matcher : Matchers::Matcher)
+      if matcher.match?(self)
+        raise ExpectationFailedError.new
+      end
+    end
+
+    @[AlwaysInline]
+    def not_to(matcher : Matchers::Matcher)
+      to_not(matcher)
+    end
   end
 end