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, 33 insertions, 0 deletions

diff --git a/spec/rubyspec/core/string/rpartition_spec.rb b/spec/rubyspec/core/string/rpartition_spec.rb
new file mode 100644
index 0000000000..c58d96f298
--- /dev/null
+++ b/spec/rubyspec/core/string/rpartition_spec.rb
@@ -0,0 +1,33 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes.rb', __FILE__)
+
+describe "String#rpartition with String" do
+  it "returns an array of substrings based on splitting on the given string" do
+    "hello world".rpartition("o").should == ["hello w", "o", "rld"]
+  end
+
+  it "always returns 3 elements" do
+    "hello".rpartition("x").should == ["", "", "hello"]
+    "hello".rpartition("hello").should == ["", "hello", ""]
+  end
+
+  it "accepts regexp" do
+    "hello!".rpartition(/l./).should == ["hel", "lo", "!"]
+  end
+
+  it "affects $~" do
+    matched_string = "hello!".rpartition(/l./)[1]
+    matched_string.should == $~[0]
+  end
+
+  it "converts its argument using :to_str" do
+    find = mock('l')
+    find.should_receive(:to_str).and_return("l")
+    "hello".rpartition(find).should == ["hel","l","o"]
+  end
+
+  it "raises an error if not convertible to string" do
+    lambda{ "hello".rpartition(5) }.should raise_error(TypeError)
+    lambda{ "hello".rpartition(nil) }.should raise_error(TypeError)
+  end
+end