1 files changed, 35 insertions, 0 deletions
diff --git a/test/dtrace/test_object_create_start.rb b/test/dtrace/test_object_create_start.rb
new file mode 100644
index 0000000000..756b3b3545
--- /dev/null
+++ b/test/dtrace/test_object_create_start.rb
@@ -0,0 +1,35 @@
+require 'dtrace/helper'
+
+module DTrace
+  class TestObjectCreateStart < TestCase
+    def test_object_create_start
+      trap_probe(probe, '10.times { Object.new }') { |_,rbfile,saw|
+        saw = saw.map(&:split).find_all { |_, file, _|
+          file == rbfile
+        }
+        assert_equal 10, saw.length
+      }
+    end
+
+    def test_object_create_start_name
+      trap_probe(probe, 'Hash.new') { |_,rbfile,saw|
+        saw = saw.map(&:split).find_all { |klass, file, line|
+          file == rbfile
+        }
+        assert_equal(%w{ Hash }, saw.map(&:first))
+        assert_equal([rbfile], saw.map { |line| line[1] })
+        assert_equal(['1'], saw.map { |line| line[2] })
+      }
+    end
+
+    private
+    def probe
+      <<-eoprobe
+ruby$target:::object-create
+{
+  printf("%s %s %d\\n", copyinstr(arg0), copyinstr(arg1), arg2);
+}
+      eoprobe
+    end
+  end
+end