# HG changeset patch
# User Michael Granger <ged@FaerieMUD.org>
# Date 1630620409 25200
#      Thu Sep 02 15:06:49 2021 -0700
# Node ID cabd6c2a035b67453ccaa0b524deb6779b1c3482
# Parent  4db5211d848c92a783bbd30827d4731e338489ea
Report operator arguments in the spec matcher failure output.

diff --git a/lib/pushdown/spec_helpers.rb b/lib/pushdown/spec_helpers.rb
--- a/lib/pushdown/spec_helpers.rb
+++ b/lib/pushdown/spec_helpers.rb
@@ -182,9 +182,9 @@
 			desc << " to %s" % [ self.target_state ] if self.target_state
 
 			if self.callback
-				methname, arg = self.callback
+				methname, *args = self.callback
 				desc << " when #%s is called" % [ methname ]
-				desc << " with %p" % [ arg ] if arg
+				desc << " with %s" % [ args.map(&:inspect).join(', ') ] if !args.empty?
 			end
 
 			desc << ', but '
diff --git a/spec/pushdown/spec_helpers_spec.rb b/spec/pushdown/spec_helpers_spec.rb
--- a/spec/pushdown/spec_helpers_spec.rb
+++ b/spec/pushdown/spec_helpers_spec.rb
@@ -386,6 +386,19 @@
 			}.to fail_matching( /transition when #on_event is called with :foo/i )
 		end
 
+
+		it "handles multiple callback arguments on failures" do
+			state_class.transition_push( :change, :other )
+
+			state = state_class.new
+			allow( state ).to receive( :on_event ).with( :foo, 18, "nebraska" ).
+				and_return( nil )
+
+			expect {
+				expect( state ).to transition.on_an_event( :foo, 18, "nebraska" )
+			}.to fail_matching( /#on_event is called with :foo, 18, "nebraska"/i )
+		end
+
 	end
 
 	describe "negated matcher" do