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, 277 insertions, 0 deletions

diff --git a/spec/rubyspec/core/string/unpack/j_spec.rb b/spec/rubyspec/core/string/unpack/j_spec.rb
new file mode 100644
index 0000000000..49c460aeb3
--- /dev/null
+++ b/spec/rubyspec/core/string/unpack/j_spec.rb
@@ -0,0 +1,277 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require File.expand_path('../../fixtures/classes', __FILE__)
+require File.expand_path('../shared/basic', __FILE__)
+require File.expand_path('../shared/integer', __FILE__)
+
+ruby_version_is '2.3' do
+  # To handle the special case of x64-mingw32
+  pointer_size = RUBY_PLATFORM =~ /\bx64\b/ ? 64 : 1.size * 8
+
+  if pointer_size == 64 then
+    little_endian do
+      describe "String#unpack with format 'J'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_64bit_le, 'J_'
+          it_behaves_like :string_unpack_64bit_le_unsigned, 'J_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_64bit_le, 'J!'
+          it_behaves_like :string_unpack_64bit_le_unsigned, 'J!'
+        end
+      end
+
+      describe "String#unpack with format 'j'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_64bit_le, 'j_'
+          it_behaves_like :string_unpack_64bit_le_signed, 'j_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_64bit_le, 'j!'
+          it_behaves_like :string_unpack_64bit_le_signed, 'j!'
+        end
+      end
+    end
+
+    big_endian do
+      describe "String#unpack with format 'J'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_64bit_be, 'J_'
+          it_behaves_like :string_unpack_64bit_be_unsigned, 'J_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_64bit_be, 'J!'
+          it_behaves_like :string_unpack_64bit_be_unsigned, 'J!'
+        end
+      end
+
+      describe "String#unpack with format 'j'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_64bit_be, 'j_'
+          it_behaves_like :string_unpack_64bit_be_signed, 'j_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_64bit_be, 'j!'
+          it_behaves_like :string_unpack_64bit_be_signed, 'j!'
+        end
+      end
+    end
+
+    describe "String#unpack with format 'J'" do
+      describe "with modifier '<'" do
+        it_behaves_like :string_unpack_64bit_le, 'J<'
+        it_behaves_like :string_unpack_64bit_le_unsigned, 'J<'
+      end
+
+      describe "with modifier '>'" do
+        it_behaves_like :string_unpack_64bit_be, 'J>'
+        it_behaves_like :string_unpack_64bit_be_unsigned, 'J>'
+      end
+
+      describe "with modifier '<' and '_'" do
+        it_behaves_like :string_unpack_64bit_le, 'J<_'
+        it_behaves_like :string_unpack_64bit_le, 'J_<'
+        it_behaves_like :string_unpack_64bit_le_unsigned, 'J<_'
+        it_behaves_like :string_unpack_64bit_le_unsigned, 'J_<'
+      end
+
+      describe "with modifier '<' and '!'" do
+        it_behaves_like :string_unpack_64bit_le, 'J<!'
+        it_behaves_like :string_unpack_64bit_le, 'J!<'
+        it_behaves_like :string_unpack_64bit_le_unsigned, 'J<!'
+        it_behaves_like :string_unpack_64bit_le_unsigned, 'J!<'
+      end
+
+      describe "with modifier '>' and '_'" do
+        it_behaves_like :string_unpack_64bit_be, 'J>_'
+        it_behaves_like :string_unpack_64bit_be, 'J_>'
+        it_behaves_like :string_unpack_64bit_be_unsigned, 'J>_'
+        it_behaves_like :string_unpack_64bit_be_unsigned, 'J_>'
+      end
+
+      describe "with modifier '>' and '!'" do
+        it_behaves_like :string_unpack_64bit_be, 'J>!'
+        it_behaves_like :string_unpack_64bit_be, 'J!>'
+        it_behaves_like :string_unpack_64bit_be_unsigned, 'J>!'
+        it_behaves_like :string_unpack_64bit_be_unsigned, 'J!>'
+      end
+    end
+
+    describe "String#unpack with format 'j'" do
+      describe "with modifier '<'" do
+        it_behaves_like :string_unpack_64bit_le, 'j<'
+        it_behaves_like :string_unpack_64bit_le_signed, 'j<'
+      end
+
+      describe "with modifier '>'" do
+        it_behaves_like :string_unpack_64bit_be, 'j>'
+        it_behaves_like :string_unpack_64bit_be_signed, 'j>'
+      end
+
+      describe "with modifier '<' and '_'" do
+        it_behaves_like :string_unpack_64bit_le, 'j<_'
+        it_behaves_like :string_unpack_64bit_le, 'j_<'
+        it_behaves_like :string_unpack_64bit_le_signed, 'j<_'
+        it_behaves_like :string_unpack_64bit_le_signed, 'j_<'
+      end
+
+      describe "with modifier '<' and '!'" do
+        it_behaves_like :string_unpack_64bit_le, 'j<!'
+        it_behaves_like :string_unpack_64bit_le, 'j!<'
+        it_behaves_like :string_unpack_64bit_le_signed, 'j<!'
+        it_behaves_like :string_unpack_64bit_le_signed, 'j!<'
+      end
+
+      describe "with modifier '>' and '_'" do
+        it_behaves_like :string_unpack_64bit_be, 'j>_'
+        it_behaves_like :string_unpack_64bit_be, 'j_>'
+        it_behaves_like :string_unpack_64bit_be_signed, 'j>_'
+        it_behaves_like :string_unpack_64bit_be_signed, 'j_>'
+      end
+
+      describe "with modifier '>' and '!'" do
+        it_behaves_like :string_unpack_64bit_be, 'j>!'
+        it_behaves_like :string_unpack_64bit_be, 'j!>'
+        it_behaves_like :string_unpack_64bit_be_signed, 'j>!'
+        it_behaves_like :string_unpack_64bit_be_signed, 'j!>'
+      end
+    end
+  end
+
+  if pointer_size == 32 then
+    little_endian do
+      describe "String#unpack with format 'J'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_32bit_le, 'J_'
+          it_behaves_like :string_unpack_32bit_le_unsigned, 'J_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_32bit_le, 'J!'
+          it_behaves_like :string_unpack_32bit_le_unsigned, 'J!'
+        end
+      end
+
+      describe "String#unpack with format 'j'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_32bit_le, 'j_'
+          it_behaves_like :string_unpack_32bit_le_signed, 'j_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_32bit_le, 'j!'
+          it_behaves_like :string_unpack_32bit_le_signed, 'j!'
+        end
+      end
+    end
+
+    big_endian do
+      describe "String#unpack with format 'J'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_32bit_be, 'J_'
+          it_behaves_like :string_unpack_32bit_be_unsigned, 'J_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_32bit_be, 'J!'
+          it_behaves_like :string_unpack_32bit_be_unsigned, 'J!'
+        end
+      end
+
+      describe "String#unpack with format 'j'" do
+        describe "with modifier '_'" do
+          it_behaves_like :string_unpack_32bit_be, 'j_'
+          it_behaves_like :string_unpack_32bit_be_signed, 'j_'
+        end
+
+        describe "with modifier '!'" do
+          it_behaves_like :string_unpack_32bit_be, 'j!'
+          it_behaves_like :string_unpack_32bit_be_signed, 'j!'
+        end
+      end
+    end
+
+    describe "String#unpack with format 'J'" do
+      describe "with modifier '<'" do
+        it_behaves_like :string_unpack_32bit_le, 'J<'
+        it_behaves_like :string_unpack_32bit_le_unsigned, 'J<'
+      end
+
+      describe "with modifier '>'" do
+        it_behaves_like :string_unpack_32bit_be, 'J>'
+        it_behaves_like :string_unpack_32bit_be_unsigned, 'J>'
+      end
+
+      describe "with modifier '<' and '_'" do
+        it_behaves_like :string_unpack_32bit_le, 'J<_'
+        it_behaves_like :string_unpack_32bit_le, 'J_<'
+        it_behaves_like :string_unpack_32bit_le_unsigned, 'J<_'
+        it_behaves_like :string_unpack_32bit_le_unsigned, 'J_<'
+      end
+
+      describe "with modifier '<' and '!'" do
+        it_behaves_like :string_unpack_32bit_le, 'J<!'
+        it_behaves_like :string_unpack_32bit_le, 'J!<'
+        it_behaves_like :string_unpack_32bit_le_unsigned, 'J<!'
+        it_behaves_like :string_unpack_32bit_le_unsigned, 'J!<'
+      end
+
+      describe "with modifier '>' and '_'" do
+        it_behaves_like :string_unpack_32bit_be, 'J>_'
+        it_behaves_like :string_unpack_32bit_be, 'J_>'
+        it_behaves_like :string_unpack_32bit_be_unsigned, 'J>_'
+        it_behaves_like :string_unpack_32bit_be_unsigned, 'J_>'
+      end
+
+      describe "with modifier '>' and '!'" do
+        it_behaves_like :string_unpack_32bit_be, 'J>!'
+        it_behaves_like :string_unpack_32bit_be, 'J!>'
+        it_behaves_like :string_unpack_32bit_be_unsigned, 'J>!'
+        it_behaves_like :string_unpack_32bit_be_unsigned, 'J!>'
+      end
+    end
+
+    describe "String#unpack with format 'j'" do
+      describe "with modifier '<'" do
+        it_behaves_like :string_unpack_32bit_le, 'j<'
+        it_behaves_like :string_unpack_32bit_le_signed, 'j<'
+      end
+
+      describe "with modifier '>'" do
+        it_behaves_like :string_unpack_32bit_be, 'j>'
+        it_behaves_like :string_unpack_32bit_be_signed, 'j>'
+      end
+
+      describe "with modifier '<' and '_'" do
+        it_behaves_like :string_unpack_32bit_le, 'j<_'
+        it_behaves_like :string_unpack_32bit_le, 'j_<'
+        it_behaves_like :string_unpack_32bit_le_signed, 'j<_'
+        it_behaves_like :string_unpack_32bit_le_signed, 'j_<'
+      end
+
+      describe "with modifier '<' and '!'" do
+        it_behaves_like :string_unpack_32bit_le, 'j<!'
+        it_behaves_like :string_unpack_32bit_le, 'j!<'
+        it_behaves_like :string_unpack_32bit_le_signed, 'j<!'
+        it_behaves_like :string_unpack_32bit_le_signed, 'j!<'
+      end
+
+      describe "with modifier '>' and '_'" do
+        it_behaves_like :string_unpack_32bit_be, 'j>_'
+        it_behaves_like :string_unpack_32bit_be, 'j_>'
+        it_behaves_like :string_unpack_32bit_be_signed, 'j>_'
+        it_behaves_like :string_unpack_32bit_be_signed, 'j_>'
+      end
+
+      describe "with modifier '>' and '!'" do
+        it_behaves_like :string_unpack_32bit_be, 'j>!'
+        it_behaves_like :string_unpack_32bit_be, 'j!>'
+        it_behaves_like :string_unpack_32bit_be_signed, 'j>!'
+        it_behaves_like :string_unpack_32bit_be_signed, 'j!>'
+      end
+    end
+  end
+end