To support minitest 6 and prevent error ouput in minitest 5, use `must_be_nil` if expecting nil.

1 files changed, 3 insertions, 3 deletions

diff --git a/test/spec_session_cookie.rb b/test/spec_session_cookie.rb
index 5b47b37e..a019d95b 100644
--- a/test/spec_session_cookie.rb
+++ b/test/spec_session_cookie.rb
@@ -98,7 +98,7 @@ describe Rack::Session::Cookie do
 
       it 'rescues failures on decode' do
         coder = Rack::Session::Cookie::Base64::Marshal.new
-        coder.decode('lulz').must_equal nil
+        coder.decode('lulz').must_be_nil
       end
     end
 
@@ -117,7 +117,7 @@ describe Rack::Session::Cookie do
 
       it 'rescues failures on decode' do
         coder = Rack::Session::Cookie::Base64::JSON.new
-        coder.decode('lulz').must_equal nil
+        coder.decode('lulz').must_be_nil
       end
     end
 
@@ -139,7 +139,7 @@ describe Rack::Session::Cookie do
 
       it 'rescues failures on decode' do
         coder = Rack::Session::Cookie::Base64::ZipJSON.new
-        coder.decode('lulz').must_equal nil
+        coder.decode('lulz').must_be_nil
       end
     end
   end