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, 29 insertions, 0 deletions

diff --git a/spec/rubyspec/library/stringscanner/shared/get_byte.rb b/spec/rubyspec/library/stringscanner/shared/get_byte.rb
new file mode 100644
index 0000000000..763ab6f4a4
--- /dev/null
+++ b/spec/rubyspec/library/stringscanner/shared/get_byte.rb
@@ -0,0 +1,29 @@
+# -*- encoding: binary -*-
+describe :strscan_get_byte, shared: true do
+  it "scans one byte and returns it" do
+    s = StringScanner.new('abc5.')
+    s.send(@method).should == 'a'
+    s.send(@method).should == 'b'
+    s.send(@method).should == 'c'
+    s.send(@method).should == '5'
+    s.send(@method).should == '.'
+  end
+
+  it "is not multi-byte character sensitive" do
+    s = StringScanner.new("\244\242")
+    s.send(@method).should == "\244"
+    s.send(@method).should == "\242"
+  end
+
+  it "returns nil at the end of the string" do
+    # empty string case
+    s = StringScanner.new('')
+    s.send(@method).should == nil
+    s.send(@method).should == nil
+
+    # non-empty string case
+    s = StringScanner.new('a')
+    s.send(@method) # skip one
+    s.send(@method).should == nil
+  end
+end