lib/rspec/matchers/base_matcher.rb in rspec-expectations-2.8.0.rc1 vs lib/rspec/matchers/base_matcher.rb in rspec-expectations-2.8.0.rc2

@@ -1,7 +1,9 @@
 module RSpec
   module Matchers
+    # @api private
+    #
     # Used _internally_ as a base class for matchers that ship with
     # rspec-expectations.
     #
     # ### Warning:
     #
@@ -9,20 +11,29 @@
     # strongly recommend that you do not base your custom matchers on this
     # class. If/when this changes, we will announce it and remove this warning.
     module BaseMatcher
       include RSpec::Matchers::Pretty
 
-      attr_reader :actual, :expected
+      attr_reader :actual, :expected, :rescued_exception
 
       def initialize(expected=nil)
         @expected = expected
       end
 
       def matches?(actual)
         @actual = actual
       end
 
+      def match_unless_raises(exception=Exception)
+        begin
+          yield
+          true
+        rescue exception => @rescued_exception
+          false
+        end
+      end
+
       def failure_message_for_should
         "expected #{actual.inspect} to #{name_to_sentence}#{expected_to_sentence}"
       end
 
       def failure_message_for_should_not
@@ -33,9 +44,13 @@
         expected ? "#{name_to_sentence} #{expected.inspect}" : name_to_sentence
       end
 
       def diffable?
         false
+      end
+
+      def ==(other)
+        matches?(other)
       end
     end
   end
 end