1 files changed, 40 insertions, 0 deletions
diff --git a/test/-ext-/tracepoint/test_tracepoint.rb b/test/-ext-/tracepoint/test_tracepoint.rb
new file mode 100644
index 0000000000..058809471f
--- /dev/null
+++ b/test/-ext-/tracepoint/test_tracepoint.rb
@@ -0,0 +1,40 @@
+require 'test/unit'
+require '-test-/tracepoint'
+
+class TestTracepointObj < Test::Unit::TestCase
+  def test_not_available_from_ruby
+    assert_raises ArgumentError do
+      TracePoint.trace(:obj_new){}
+    end
+  end
+
+  def test_tracks_objspace_events
+    result = Bug.tracepoint_track_objspace_events{
+      99
+      'abc'
+      v="foobar"
+      Object.new
+      nil
+    }
+
+    newobj_count, free_count, gc_start_count, *newobjs = *result
+    assert_equal 2, newobj_count
+    assert_equal 2, newobjs.size
+    assert_equal 'foobar', newobjs[0]
+    assert_equal Object, newobjs[1].class
+
+    stat1 = {}
+    stat2 = {}
+    GC.stat(stat1)
+    result = Bug.tracepoint_track_objspace_events{
+      1_000_000.times{''}
+    }
+    GC.stat(stat2)
+
+    newobj_count, free_count, gc_start_count, *newobjs = *result
+
+    assert_operator stat2[:total_allocated_object] - stat1[:total_allocated_object], :>=, newobj_count
+    assert_operator stat2[:total_freed_object] - stat1[:total_freed_object], :>=, free_count
+    assert_operator stat2[:count] - stat1[:count], :==, gc_start_count
+  end
+end