* test/ruby/test_eval.rb: add new test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@20984 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/ruby/test_eval.rb

@@ -1,4 +1,5 @@
 require 'test/unit'
+require_relative 'envutil'
 
 class TestEval < Test::Unit::TestCase
 
@@ -7,6 +8,15 @@ class TestEval < Test::Unit::TestCase
   $gvar__eval = 14
   Const = 15
 
+  def ruby(*args)
+    args = ['-e', '$>.write($<.read)'] if args.empty?
+    ruby = EnvUtil.rubybin
+    f = IO.popen([ruby] + args, 'r+')
+    yield(f)
+  ensure
+    f.close unless !f || f.closed?
+  end
+
   def test_eval_basic
     assert_equal nil,   eval("nil")
     assert_equal true,  eval("true")
@@ -391,4 +401,11 @@ class TestEval < Test::Unit::TestCase
       end.join
     end
   end
+
+  def test_eval_with_toplevel_binding # [ruby-dev:37142]
+    ruby("-e", "x = 0; eval('p x', TOPLEVEL_BINDING)") do |f|
+      f.close_write
+      assert_equal("0", f.read.chomp)
+    end
+  end
 end