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, 52 insertions, 0 deletions

diff --git a/spec/rubyspec/language/retry_spec.rb b/spec/rubyspec/language/retry_spec.rb
new file mode 100644
index 0000000000..96e69b763a
--- /dev/null
+++ b/spec/rubyspec/language/retry_spec.rb
@@ -0,0 +1,52 @@
+require File.expand_path('../../spec_helper', __FILE__)
+
+describe "The retry statement" do
+  it "re-executes the closest block" do
+    retry_first = true
+    retry_second = true
+    results = []
+    begin
+      results << 1
+      raise
+    rescue
+      results << 2
+      if retry_first
+        results << 3
+        retry_first = false
+        retry
+      end
+      begin
+        results << 4
+        raise
+      rescue
+        results << 5
+        if retry_second
+          results << 6
+          retry_second = false
+          retry
+        end
+      end
+    end
+
+    results.should == [1, 2, 3, 1, 2, 4, 5, 6, 4, 5]
+  end
+
+  it "raises a SyntaxError when used outside of a begin statement" do
+    lambda { eval 'retry' }.should raise_error(SyntaxError)
+  end
+end
+
+describe "The retry keyword inside a begin block's rescue block" do
+  it "causes the begin block to be executed again" do
+    counter = 0
+
+    begin
+      counter += 1
+      raise "An exception"
+    rescue
+      retry unless counter == 7
+    end
+
+    counter.should == 7
+  end
+end