1 files changed, 19 insertions, 0 deletions
diff --git a/test/t/objectspace.rb b/test/t/objectspace.rb
new file mode 100644
index 000000000..bf79da902
--- /dev/null
+++ b/test/t/objectspace.rb
@@ -0,0 +1,19 @@
+
+assert('ObjectSpace.count_objects') do
+    h = {}
+    ObjectSpace.count_objects(h)
+    assert_kind_of(Hash, h)
+    assert_true(h.keys.all? {|x| x.is_a?(Symbol) || x.is_a?(Integer) })
+    assert_true(h.values.all? {|x| x.is_a?(Integer) })
+
+    h = ObjectSpace.count_objects
+    assert_kind_of(Hash, h)
+    assert_true(h.keys.all? {|x| x.is_a?(Symbol) || x.is_a?(Integer) })
+    assert_true(h.values.all? {|x| x.is_a?(Integer) })
+
+    assert_raise(TypeError) { ObjectSpace.count_objects(1) }
+
+    h0 = {:MRB_TT_FOO=>1000}
+    h = ObjectSpace.count_objects(h0)
+    assert_false(h0.has_key?(:MRB_TT_FOO))
+  end
+\ No newline at end of file