Merge branch 'master' of git@github.com:rails/rails

2 files changed, 44 insertions, 3 deletions

diff --git a/activesupport/test/core_ext/hash_ext_test.rb b/activesupport/test/core_ext/hash_ext_test.rb
index 63ccb5a7da..b63ab30965 100644
--- a/activesupport/test/core_ext/hash_ext_test.rb
+++ b/activesupport/test/core_ext/hash_ext_test.rb
@@ -287,10 +287,14 @@ class HashExtTest < Test::Unit::TestCase
     # Should return a new hash with only the given keys.
     assert_equal expected, original.slice(:a, :b)
     assert_not_equal expected, original
+  end
+
+  def test_slice_inplace
+    original = { :a => 'x', :b => 'y', :c => 10 }
+    expected = { :c => 10 }
 
     # Should replace the hash with only the given keys.
     assert_equal expected, original.slice!(:a, :b)
-    assert_equal expected, original
   end
 
   def test_slice_with_an_array_key
@@ -300,10 +304,14 @@ class HashExtTest < Test::Unit::TestCase
     # Should return a new hash with only the given keys when given an array key.
     assert_equal expected, original.slice([:a, :b], :c)
     assert_not_equal expected, original
+  end
+
+  def test_slice_inplace_with_an_array_key
+    original = { :a => 'x', :b => 'y', :c => 10, [:a, :b] => "an array key" }
+    expected = { :a => 'x', :b => 'y' }
 
     # Should replace the hash with only the given keys when given an array key.
     assert_equal expected, original.slice!([:a, :b], :c)
-    assert_equal expected, original
   end
 
   def test_slice_with_splatted_keys
@@ -322,11 +330,17 @@ class HashExtTest < Test::Unit::TestCase
       # Should return a new hash with only the given keys.
       assert_equal expected, original.slice(*keys), keys.inspect
       assert_not_equal expected, original
+    end
+  end
 
+  def test_indifferent_slice_inplace
+    original = { :a => 'x', :b => 'y', :c => 10 }.with_indifferent_access
+    expected = { :c => 10 }.with_indifferent_access
+
+    [['a', 'b'], [:a, :b]].each do |keys|
       # Should replace the hash with only the given keys.
       copy = original.dup
       assert_equal expected, copy.slice!(*keys)
-      assert_equal expected, copy
     end
   end
 
diff --git a/activesupport/test/core_ext/module_test.rb b/activesupport/test/core_ext/module_test.rb
index 886f692499..a5d98507ba 100644
--- a/activesupport/test/core_ext/module_test.rb
+++ b/activesupport/test/core_ext/module_test.rb
@@ -41,6 +41,10 @@ Invoice   = Struct.new(:client) do
   delegate :street, :city, :name, :to => :client, :prefix => :customer
 end
 
+Project   = Struct.new(:description, :person) do
+  delegate :name, :to => :person, :allow_nil => true
+end
+
 class Name
   delegate :upcase, :to => :@full_name
 
@@ -117,6 +121,29 @@ class ModuleTest < Test::Unit::TestCase
     end
   end
 
+  def test_delegation_with_allow_nil
+    rails = Project.new("Rails", Someone.new("David"))
+    assert_equal rails.name, "David"
+  end
+
+  def test_delegation_with_allow_nil_and_nil_value
+    rails = Project.new("Rails")
+    assert_nil rails.name
+  end
+
+  def test_delegation_with_allow_nil_and_nil_value_and_prefix
+    Project.class_eval do
+      delegate :name, :to => :person, :allow_nil => true, :prefix => true
+    end
+    rails = Project.new("Rails")
+    assert_nil rails.person_name
+  end
+
+  def test_delegation_without_allow_nil_and_nil_value
+    david = Someone.new("David")
+    assert_raises(NoMethodError) { david.street }
+  end
+
   def test_parent
     assert_equal Yz::Zy, Yz::Zy::Cd.parent
     assert_equal Yz, Yz::Zy.parent