diff --git a/test/tc_debug.rb b/test/tc_debug.rb
deleted file mode 100644
index b75481d..0000000
--- a/test/tc_debug.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require 'test/unit'
-require 'igraph'
-
-class TestGraph < Test::Unit::TestCase
-  def test_adj
-    graph = IGraph.new(['A','B','C','D'],true)
-    assert_equal ['B'], graph.adjacent_vertices('A',IGraph::ALL)
-  end
-end
-