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object.expects(:do_this).with(Fixnum, true, 99)
object.do_this(2, true, 99) # satisfies the expectation

Case Equality���For class Object, effectively the same as calling #==, but typically overridden by descendents to provide meaningful semantics in case statements.

Case Equality���Returns true if anObject is an instance of mod or one of mod���s descendents. Of limited use for modules, but can be used in case statements to classify objects by class.

Fixnum === 2 #=> true

2 === Fixnum #=> false

Index: trunk/test/unit/expectation_test.rb
===================================================================
--- trunk/test/unit/expectation_test.rb (revision 109)
+++ trunk/test/unit/expectation_test.rb (working copy)
@@ -30,6 +30,16 @@
     assert expectation.match?(:expected_method, 1, 2, 3)
   end

+  def test_should_match_calls_to_same_method_with_expected_parameter_values_or_class
+    expectation = new_expectation.with(1, Fixnum, Object)
+    assert expectation.match?(:expected_method, 1, 2, 3)
+  end
+
+  def test_should_match_calls_to_same_method_with_expected_parameter_values_or_class
+    expectation = new_expectation.with(1, Fixnum, Object)
+    assert expectation.match?(:expected_method, 1, Fixnum, 3)
+  end
+
   def test_should_match_calls_to_same_method_with_parameters_constrained_as_expected
     expectation = new_expectation.with() {|x, y, z| x + y == z}
     assert expectation.match?(:expected_method, 1, 2, 3)
Index: trunk/lib/mocha/expectation.rb
===================================================================
--- trunk/lib/mocha/expectation.rb      (revision 109)
+++ trunk/lib/mocha/expectation.rb      (working copy)
@@ -22,9 +22,6 @@
     class InvalidExpectation < Exception; end

     class AlwaysEqual
-      def ==(other)
-        true
-      end
     end

     attr_reader :method_name, :backtrace
@@ -43,7 +40,15 @@
     end
     def match?(method_name, *arguments)
-      (@method_name == method_name) and (@parameter_block ? @parameter_block.call(*arguments) : (@parameters == arguments))
+      return false unless @method_name == method_name
+      return @parameter_block.call(*arguments) unless @parameter_block.nil?
+      return true if @parameters.is_a? AlwaysEqual
+      return false unless @parameters.size == arguments.size
+      @parameters.inject([0, true]) do |result, arg|
+        result[1] &&= (arguments[result.first].is_a?(Module) ? arg == arguments[result.first] : arg === arguments[result.first])
+        result[0] += 1
+        result
+      end.last
     end
     # :startdoc: