Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 37 insertions, 0 deletions

diff --git a/spec/rubyspec/core/array/any_spec.rb b/spec/rubyspec/core/array/any_spec.rb
new file mode 100644
index 0000000000..7e9863420f
--- /dev/null
+++ b/spec/rubyspec/core/array/any_spec.rb
@@ -0,0 +1,37 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Array#any?" do
+  describe 'with no block given (a default block of { |x| x } is implicit)' do
+    it "is false if the array is empty" do
+      empty_array = []
+      empty_array.any?.should == false
+    end
+
+    it "is false if the array is not empty, but all the members of the array are falsy" do
+      falsy_array = [false, nil, false]
+      falsy_array.any?.should == false
+    end
+
+    it "is true if the array has any truthy members" do
+      not_empty_array = ['anything', nil]
+      not_empty_array.any?.should == true
+    end
+  end
+
+  describe 'with a block given' do
+    it 'is false if the array is empty' do
+      empty_array = []
+      empty_array.any? {|v| 1 == 1 }.should == false
+    end
+
+    it 'is true if the block returns true for any member of the array' do
+      array_with_members = [false, false, true, false]
+      array_with_members.any? {|v| v == true }.should == true
+    end
+
+    it 'is false if the block returns false for all members of the array' do
+      array_with_members = [false, false, true, false]
+      array_with_members.any? {|v| v == 42 }.should == false
+    end
+  end
+end