1 files changed, 26 insertions, 0 deletions
diff --git a/test/dtrace/test_gc.rb b/test/dtrace/test_gc.rb
new file mode 100644
index 0000000000..24251c1a68
--- /dev/null
+++ b/test/dtrace/test_gc.rb
@@ -0,0 +1,26 @@
+require 'dtrace/helper'
+
+module DTrace
+  class TestGC < TestCase
+    %w{
+      gc-mark-begin
+      gc-mark-end
+      gc-sweep-begin
+      gc-sweep-end
+    }.each do |probe_name|
+      define_method(:"test_#{probe_name.gsub(/-/, '_')}") do
+	probe = "ruby$target:::#{probe_name} { printf(\"#{probe_name}\\n\"); }"
+
+	trap_probe(probe, ruby_program) { |_, _, saw|
+	  assert_operator saw.length, :>, 0
+	}
+
+      end
+    end
+
+    private
+    def ruby_program
+      "100000.times { Object.new }"
+    end
+  end
+end