1 files changed, 23 insertions, 0 deletions
diff --git a/test/ruby/test_trace.rb b/test/ruby/test_trace.rb
new file mode 100644
index 0000000000..74fb1148f0
--- /dev/null
+++ b/test/ruby/test_trace.rb
@@ -0,0 +1,23 @@
+require 'test/unit'
+
+$KCODE = 'none'
+
+class TestTrace < Test::Unit::TestCase
+  def test_trace
+    $x = 1234
+    $y = 0
+    trace_var :$x, proc{$y = $x}
+    $x = 40414
+    assert($y == $x)
+    
+    untrace_var :$x
+    $x = 19660208
+    assert($y != $x)
+    
+    trace_var :$x, proc{$x *= 2}
+    $x = 5
+    assert($x == 10)
+    
+    untrace_var :$x
+  end 
+end