range.c: check loading

* range.c (range_loader): check loading values if the data came
  from an initialized range object. [ruby-core:78067] [Bug #12915]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56703 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/test/ruby/test_range.rb b/test/ruby/test_range.rb
index a70361d6cb..1ce3f0663a 100644
--- a/test/ruby/test_range.rb
+++ b/test/ruby/test_range.rb
@@ -110,6 +110,16 @@ class TestRange < Test::Unit::TestCase
     assert_nothing_raised { r.instance_eval { initialize 5, 6} }
   end
 
+  def test_marshal
+    r = 1..2
+    assert_equal(r, Marshal.load(Marshal.dump(r)))
+    r = 1...2
+    assert_equal(r, Marshal.load(Marshal.dump(r)))
+    s = Marshal.dump(r)
+    s.sub!(/endi./n, 'end0')
+    assert_raise(ArgumentError) {Marshal.load(s)}
+  end
+
   def test_bad_value
     assert_raise(ArgumentError) { (1 .. :a) }
   end