Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/shared/file/world_writable.rb

@@ -0,0 +1,49 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe :file_world_writable, shared: true do
+
+  before :each do
+    @file = tmp('world-writable')
+    touch @file
+  end
+
+  after :each do
+    rm_r @file
+  end
+
+  platform_is_not :windows do
+    it "returns nil if the file is chmod 600" do
+      File.chmod(0600, @file)
+      @object.world_writable?(@file).should be_nil
+    end
+
+    it "returns nil if the file is chmod 000" do
+      File.chmod(0000, @file)
+      @object.world_writable?(@file).should be_nil
+    end
+
+    it "returns nil if the file is chmod 700" do
+      File.chmod(0700, @file)
+      @object.world_writable?(@file).should be_nil
+    end
+
+    # We don't specify what the Fixnum is because it's system dependent
+    it "returns a Fixnum if the file is chmod 777" do
+      File.chmod(0777, @file)
+      @object.world_writable?(@file).should be_an_instance_of(Fixnum)
+    end
+
+    it "returns a Fixnum if the file is a directory and chmod 777" do
+      dir = rand().to_s + '-ww'
+      Dir.mkdir(dir)
+      Dir.exist?(dir).should be_true
+      File.chmod(0777, dir)
+      @object.world_writable?(dir).should be_an_instance_of(Fixnum)
+      Dir.rmdir(dir)
+    end
+  end
+
+  it "coerces the argument with #to_path" do
+    @object.world_writable?(mock_to_path(@file))
+  end
+end