4 files changed, 93 insertions, 0 deletions
diff --git a/spec/rubyspec/library/weakref/__getobj___spec.rb b/spec/rubyspec/library/weakref/__getobj___spec.rb
new file mode 100644
index 0000000000..e75b8f4704
--- /dev/null
+++ b/spec/rubyspec/library/weakref/__getobj___spec.rb
@@ -0,0 +1,17 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "WeakRef#__getobj__" do
+  it "returns the object if it is reachable" do
+    obj = Object.new
+    ref = WeakRef.new(obj)
+    ref.__getobj__.should equal(obj)
+  end
+
+  it "raises WeakRef::RefError if the object is no longer reachable" do
+    ref = WeakRefSpec.make_dead_weakref
+    lambda {
+      ref.__getobj__
+    }.should raise_error(WeakRef::RefError)
+  end
+end
diff --git a/spec/rubyspec/library/weakref/fixtures/classes.rb b/spec/rubyspec/library/weakref/fixtures/classes.rb
new file mode 100644
index 0000000000..560c58b041
--- /dev/null
+++ b/spec/rubyspec/library/weakref/fixtures/classes.rb
@@ -0,0 +1,24 @@
+require 'weakref'
+
+# From MRI test_weakref.rb
+class WeakRefSpec
+  def self.make_weakref(level = 10)
+    if level > 0
+      make_weakref(level - 1)
+    else
+      WeakRef.new(Object.new)
+    end
+  end
+
+  def self.make_dead_weakref
+    weaks = []
+    weak = nil
+    10_000.times do
+      weaks << make_weakref
+      GC.start
+      GC.start
+      break if weak = weaks.find { |w| !w.weakref_alive? }
+    end
+    weak
+  end
+end
diff --git a/spec/rubyspec/library/weakref/send_spec.rb b/spec/rubyspec/library/weakref/send_spec.rb
new file mode 100644
index 0000000000..173e1055dd
--- /dev/null
+++ b/spec/rubyspec/library/weakref/send_spec.rb
@@ -0,0 +1,37 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'weakref'
+
+describe "WeakRef#__send__" do
+  module WeakRefSpecs
+    class << self
+      def delegated_method
+        :result
+      end
+
+      def protected_method
+        :result
+      end
+      protected :protected_method
+
+      def private_method
+        :result
+      end
+      private :private_method
+    end
+  end
+
+  it "delegates to public methods of the weakly-referenced object" do
+    wr = WeakRef.new(WeakRefSpecs)
+    wr.delegated_method.should == :result
+  end
+
+  it "delegates to protected methods of the weakly-referenced object" do
+    wr = WeakRef.new(WeakRefSpecs)
+    lambda { wr.protected_method }.should raise_error(NameError)
+  end
+
+  it "does not delegate to private methods of the weakly-referenced object" do
+    wr = WeakRef.new(WeakRefSpecs)
+    lambda { wr.private_method }.should raise_error(NameError)
+  end
+end
diff --git a/spec/rubyspec/library/weakref/weakref_alive_spec.rb b/spec/rubyspec/library/weakref/weakref_alive_spec.rb
new file mode 100644
index 0000000000..b3c2eab620
--- /dev/null
+++ b/spec/rubyspec/library/weakref/weakref_alive_spec.rb
@@ -0,0 +1,15 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "WeakRef#weakref_alive?" do
+  it "returns true if the object is reachable" do
+    obj = Object.new
+    ref = WeakRef.new(obj)
+    ref.weakref_alive?.should == true
+  end
+
+  it "returns a falsey value if the object is no longer reachable" do
+    ref = WeakRefSpec.make_dead_weakref
+    [false, nil].should include(ref.weakref_alive?)
+  end
+end