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, 51 insertions, 0 deletions

diff --git a/spec/rubyspec/core/dir/shared/pos.rb b/spec/rubyspec/core/dir/shared/pos.rb
new file mode 100644
index 0000000000..2165932d99
--- /dev/null
+++ b/spec/rubyspec/core/dir/shared/pos.rb
@@ -0,0 +1,51 @@
+describe :dir_pos, shared: true do
+  before :each do
+    @dir = Dir.open DirSpecs.mock_dir
+  end
+
+  after :each do
+    @dir.close rescue nil
+  end
+
+  it "returns an Integer representing the current position in the directory" do
+    @dir.send(@method).should be_kind_of(Integer)
+    @dir.send(@method).should be_kind_of(Integer)
+    @dir.send(@method).should be_kind_of(Integer)
+  end
+
+  it "returns a different Integer if moved from previous position" do
+    a = @dir.send(@method)
+    @dir.read
+    b = @dir.send(@method)
+
+    a.should be_kind_of(Integer)
+    b.should be_kind_of(Integer)
+
+    a.should_not == b
+  end
+end
+
+describe :dir_pos_set, shared: true do
+  before :each do
+    @dir = Dir.open DirSpecs.mock_dir
+  end
+
+  after :each do
+    @dir.close
+  end
+
+  # NOTE: #seek/#pos= to a position not returned by #tell/#pos is undefined
+  # and should not be spec'd.
+
+  it "moves the read position to a previously obtained position" do
+    pos = @dir.pos
+    a   = @dir.read
+    b   = @dir.read
+    @dir.send @method, pos
+    c   = @dir.read
+
+    a.should_not == b
+    b.should_not == c
+    c.should == a
+  end
+end