add eq matcher (for ==)

lib/rspec/matchers.rb

@@ -7,6 +7,7 @@
 require 'rspec/matchers/be_instance_of'
 require 'rspec/matchers/be_kind_of'
 require 'rspec/matchers/change'
+require 'rspec/matchers/eq'
 require 'rspec/matchers/eql'
 require 'rspec/matchers/equal'
 require 'rspec/matchers/errors'

lib/rspec/matchers/eq.rb

@@ -0,0 +1,47 @@
+module Rspec
+  module Matchers
+    # :call-seq:
+    #   should eq(expected)
+    #   should_not eq(expected)
+    #
+    # Passes if actual == expected.
+    #
+    # See http://www.ruby-doc.org/core/classes/Object.html#M001057 for more information about equality in Ruby.
+    #
+    # == Examples
+    #
+    #   5.should eq(5)
+    #   5.should_not eq(3)
+    def eq(expected)
+      Matcher.new :eq, expected do |_expected_|
+        match do |actual|
+          actual == _expected_
+        end
+
+        failure_message_for_should do |actual|
+          <<-MESSAGE
+
+expected #{_expected_.inspect}
+     got #{actual.inspect}
+
+(compared using ==)
+MESSAGE
+        end
+
+        failure_message_for_should_not do |actual|
+          <<-MESSAGE
+
+expected #{actual.inspect} not to equal #{_expected_.inspect}
+
+(compared using ==)
+MESSAGE
+        end
+
+        description do
+          "== #{_expected_}"
+        end
+      end
+    end
+  end
+end
+

rspec-expectations.gemspec

@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
 
   s.required_rubygems_version = Gem::Requirement.new("> 1.3.1") if s.respond_to? :required_rubygems_version=
   s.authors = ["David Chelimsky", "Chad Humphries"]
-  s.date = %q{2010-01-29}
+  s.date = %q{2010-01-31}
   s.email = %q{dchelimsky@gmail.com;chad.humphries@gmail.com}
   s.extra_rdoc_files = [
     "README.markdown"
@@ -79,7 +79,6 @@ Gem::Specification.new do |s|
      "spec/rspec/matchers/include_spec.rb",
      "spec/rspec/matchers/match_array_spec.rb",
      "spec/rspec/matchers/match_spec.rb",
-     "spec/rspec/matchers/matcher_methods_spec.rb",
      "spec/rspec/matchers/matcher_spec.rb",
      "spec/rspec/matchers/matchers_spec.rb",
      "spec/rspec/matchers/operator_matcher_spec.rb",
@@ -110,6 +109,7 @@ Gem::Specification.new do |s|
      "spec/rspec/matchers/compatibility_spec.rb",
      "spec/rspec/matchers/description_generation_spec.rb",
      "spec/rspec/matchers/dsl_spec.rb",
+     "spec/rspec/matchers/eq_spec.rb",
      "spec/rspec/matchers/eql_spec.rb",
      "spec/rspec/matchers/equal_spec.rb",
      "spec/rspec/matchers/exist_spec.rb",
@@ -118,7 +118,6 @@ Gem::Specification.new do |s|
      "spec/rspec/matchers/include_spec.rb",
      "spec/rspec/matchers/match_array_spec.rb",
      "spec/rspec/matchers/match_spec.rb",
-     "spec/rspec/matchers/matcher_methods_spec.rb",
      "spec/rspec/matchers/matcher_spec.rb",
      "spec/rspec/matchers/matchers_spec.rb",
      "spec/rspec/matchers/operator_matcher_spec.rb",

spec/rspec/matchers/eq_spec.rb

@@ -0,0 +1,34 @@
+require 'spec_helper'
+
+module Rspec
+  module Matchers
+    describe "eq" do
+      it "matches when actual == expected" do
+        1.should eq(1)
+      end
+
+      it "does not match when actual != expected" do
+        1.should_not eq(2)
+      end
+
+      it "describes itself" do
+        matcher = eq(1)
+        matcher.matches?(1)
+        matcher.description.should == "== 1"
+      end
+
+      it "provides message, expected and actual on #failure_message" do
+        matcher = eq("1")
+        matcher.matches?(1)
+        matcher.failure_message_for_should.should == "\nexpected \"1\"\n     got 1\n\n(compared using ==)\n"
+      end
+
+      it "provides message, expected and actual on #negative_failure_message" do
+        matcher = eq(1)
+        matcher.matches?(1)
+        matcher.failure_message_for_should_not.should == "\nexpected 1 not to equal 1\n\n(compared using ==)\n"
+      end
+    end
+  end
+end
+