Delegate to `eql?` [Fix GH-1564]

* lib/delegate.rb (eql?): Delegate to `eql?` of the inner object.
  based on the patch by giginet <giginet.net@gmail.com>.
  [ruby-core:76950] [Bug #12684]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59167 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 27 insertions, 3 deletions

diff --git a/spec/rubyspec/library/delegate/delegator/eql_spec.rb b/spec/rubyspec/library/delegate/delegator/eql_spec.rb
index 937629f73e..7d101eb262 100644
--- a/spec/rubyspec/library/delegate/delegator/eql_spec.rb
+++ b/spec/rubyspec/library/delegate/delegator/eql_spec.rb
@@ -2,10 +2,34 @@ require File.expand_path('../../../../spec_helper', __FILE__)
 require File.expand_path('../../fixtures/classes', __FILE__)
 
 describe "Delegator#eql?" do
-  it "is delegated" do
+  it "returns true when compared with same delegator" do
     base = mock('base')
     delegator = DelegateSpecs::Delegator.new(base)
-    base.should_receive(:eql?).with(42).and_return(:foo)
-    delegator.eql?(42).should == :foo
+
+    delegator.eql?(delegator).should be_true
+  end
+
+  it "returns true when compared with the inner object" do
+    base = mock('base')
+    delegator = DelegateSpecs::Delegator.new(base)
+
+    delegator.eql?(base).should be_true
+  end
+
+  it "returns false when compared with the delegator with other object" do
+    base = mock('base')
+    other = mock('other')
+    delegator0 = DelegateSpecs::Delegator.new(base)
+    delegator1 = DelegateSpecs::Delegator.new(other)
+
+    delegator0.eql?(delegator1).should be_false
+  end
+
+  it "returns false when compared with the other object" do
+    base = mock('base')
+    other = mock('other')
+    delegator = DelegateSpecs::Delegator.new(base)
+
+    delegator.eql?(other).should be_false
   end
 end