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, 36 insertions, 0 deletions

diff --git a/spec/rubyspec/core/regexp/fixed_encoding_spec.rb b/spec/rubyspec/core/regexp/fixed_encoding_spec.rb
new file mode 100644
index 0000000000..8a11de9575
--- /dev/null
+++ b/spec/rubyspec/core/regexp/fixed_encoding_spec.rb
@@ -0,0 +1,36 @@
+# -*- encoding: utf-8 -*-
+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Regexp#fixed_encoding?" do
+  it "returns false by default" do
+    /needle/.fixed_encoding?.should be_false
+  end
+
+  it "returns false if the 'n' modifier was supplied to the Regexp" do
+    /needle/n.fixed_encoding?.should be_false
+  end
+
+  it "returns true if the 'u' modifier was supplied to the Regexp" do
+    /needle/u.fixed_encoding?.should be_true
+  end
+
+  it "returns true if the 's' modifier was supplied to the Regexp" do
+    /needle/s.fixed_encoding?.should be_true
+  end
+
+  it "returns true if the 'e' modifier was supplied to the Regexp" do
+    /needle/e.fixed_encoding?.should be_true
+  end
+
+  it "returns true if the Regexp contains a \\u escape" do
+    /needle \u{8768}/.fixed_encoding?.should be_true
+  end
+
+  it "returns true if the Regexp contains a UTF-8 literal" do
+    /文字化け/.fixed_encoding?.should be_true
+  end
+
+  it "returns true if the Regexp was created with the Regexp::FIXEDENCODING option" do
+    Regexp.new("", Regexp::FIXEDENCODING).fixed_encoding?.should be_true
+  end
+end