1 files changed, 28 insertions, 0 deletions
diff --git a/test/test_duplicate.rb b/test/test_duplicate.rb
new file mode 100644
index 0000000..c50a211
--- /dev/null
+++ b/test/test_duplicate.rb
@@ -0,0 +1,28 @@
+require 'test/unit'
+require 'rpatricia'
+require 'stringio'
+
+class TestDuplicate < Test::Unit::TestCase
+  def test_dup
+    tmp = {}
+    t = Patricia.new
+    t.add('127.0.0.0/8', tmp)
+    t2 = t.dup
+    assert_equal 1, t2.num_nodes
+    assert_equal tmp.object_id, t2.match_best('127.0.0.1').data.object_id
+    t2.add('10.0.0.0/8', zz = [])
+    assert_equal 2, t2.num_nodes
+    assert_equal 1, t.num_nodes
+
+    oldout = $stdout
+    begin
+      $stdout = stringio = StringIO.new
+      t2.show_nodes
+      puts "--"
+      t.show_nodes
+    ensure
+      $stdout = oldout
+    end
+    p stringio.string
+  end
+end