* test/test_open3.rb: Add a simple test for env hash on popen3.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48688 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/test_open3.rb

@@ -73,6 +73,13 @@ class TestOpen3 < Test::Unit::TestCase
     }
   end
 
+  def test_env
+    result = Open3.popen3({'A' => 'B', 'C' => 'D'}, RUBY, '-e' 'p ENV["A"]') do |i, out, err, thr|
+      output = out.read
+      assert_equal("\"B\"\n", output)
+    end
+  end
+
   def with_pipe
     r, w = IO.pipe
     yield r, w