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, 110 insertions, 0 deletions

diff --git a/spec/rubyspec/shared/basicobject/send.rb b/spec/rubyspec/shared/basicobject/send.rb
new file mode 100644
index 0000000000..f8c63c5522
--- /dev/null
+++ b/spec/rubyspec/shared/basicobject/send.rb
@@ -0,0 +1,110 @@
+module SendSpecs
+end
+
+describe :basicobject_send, shared: true do
+  it "invokes the named method" do
+    class SendSpecs::Foo
+      def bar
+        'done'
+      end
+    end
+    SendSpecs::Foo.new.send(@method, :bar).should == 'done'
+  end
+
+  it "accepts a String method name" do
+    class SendSpecs::Foo
+      def bar
+        'done'
+      end
+    end
+    SendSpecs::Foo.new.send(@method, 'bar').should == 'done'
+  end
+
+  it "invokes a class method if called on a class" do
+    class SendSpecs::Foo
+      def self.bar
+        'done'
+      end
+    end
+    SendSpecs::Foo.send(@method, :bar).should == 'done'
+  end
+
+  it "raises a NameError if the corresponding method can't be found" do
+    class SendSpecs::Foo
+      def bar
+        'done'
+      end
+    end
+    lambda { SendSpecs::Foo.new.send(@method, :syegsywhwua) }.should raise_error(NameError)
+  end
+
+  it "raises a NameError if the corresponding singleton method can't be found" do
+    class SendSpecs::Foo
+      def self.bar
+        'done'
+      end
+    end
+    lambda { SendSpecs::Foo.send(@method, :baz) }.should raise_error(NameError)
+  end
+
+  it "raises an ArgumentError if no arguments are given" do
+    class SendSpecs::Foo; end
+    lambda { SendSpecs::Foo.new.send @method }.should raise_error(ArgumentError)
+  end
+
+  it "raises an ArgumentError if called with more arguments than available parameters" do
+    class SendSpecs::Foo
+      def bar; end
+    end
+
+    lambda { SendSpecs::Foo.new.send(@method, :bar, :arg) }.should raise_error(ArgumentError)
+  end
+
+  it "raises an ArgumentError if called with fewer arguments than required parameters" do
+    class SendSpecs::Foo
+      def foo(arg); end
+    end
+
+    lambda { SendSpecs::Foo.new.send(@method, :foo) }.should raise_error(ArgumentError)
+  end
+
+  it "succeeds if passed an arbitrary number of arguments as a splat parameter" do
+    class SendSpecs::Foo
+      def baz(*args) args end
+    end
+
+    begin
+      SendSpecs::Foo.new.send(@method, :baz).should == []
+      SendSpecs::Foo.new.send(@method, :baz, :quux).should == [:quux]
+      SendSpecs::Foo.new.send(@method, :baz, :quux, :foo).should == [:quux, :foo]
+    rescue
+      fail
+    end
+  end
+
+  it "succeeds when passing 1 or more arguments as a required and a splat parameter" do
+    class SendSpecs::Foo
+      def baz(first, *rest) [first, *rest] end
+    end
+
+    SendSpecs::Foo.new.send(@method, :baz, :quux).should == [:quux]
+    SendSpecs::Foo.new.send(@method, :baz, :quux, :foo).should == [:quux, :foo]
+  end
+
+  it "succeeds when passing 0 arguments to a method with one parameter with a default" do
+    class SendSpecs::Foo
+      def foo(first = true) first end
+    end
+
+    begin
+      SendSpecs::Foo.new.send(@method, :foo).should == true
+      SendSpecs::Foo.new.send(@method, :foo, :arg).should == :arg
+    rescue
+      fail
+    end
+  end
+
+  it "has a negative arity" do
+    method(@method).arity.should < 0
+  end
+end