fn#apply error handling + include the latest specs

for 6c962f7db0

Gemfile

@@ -4,4 +4,4 @@ gemspec
 
 # NOTE: some specs might be excluded @see #spec/spec_helper.rb
 gem 'redjs', :git => 'git://github.com/cowboyd/redjs.git', :group => :test,
-             :ref => "8656639e99d52b8d5414250db2e27db4bb531506"
+             :ref => "b212e50ad347c0d32e53f28d0d627df6b8077e68"

lib/rhino/rhino_ext.rb

@@ -200,6 +200,8 @@ class Java::OrgMozillaJavascript::BaseFunction
     context = Rhino::JS::Context.enter; scope = current_scope(context)
     args = Rhino.args_to_javascript(args, scope)
     __call__(context, scope, Rhino.to_javascript(this), args)
+  rescue Rhino::JS::JavaScriptException => e
+    raise Rhino::JSError.new(e)
   ensure
     Rhino::JS::Context.exit
   end

spec/rhino/error_spec.rb

@@ -128,4 +128,17 @@ describe Rhino::JSError do
     end
   end
 
+  it "raises correct error from function#apply" do
+    begin
+      context = Rhino::Context.new
+      context.eval "function foo() { throw 'bar' }"
+      context['foo'].apply(nil)
+    rescue => e
+      e.should be_a Rhino::JSError
+      e.value.should == 'bar'
+    else
+      fail "expected to rescue"
+    end
+  end
+  
 end