Improve test of mruby-objectspace-ext GEM

mrbgems/mruby-objectspace/test/objectspace.rb

 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) })
-
-	assert_true(h.has_key?(:TOTAL))
-	assert_true(h.has_key?(:FREE))
-
-	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))
-
-	GC.start
-	h_after = {}
-	h_before = ObjectSpace.count_objects
-
-	objs = []
-	1000.times do
-		objs << {}
-	end
-	objs = nil
-	ObjectSpace.count_objects(h)
-	GC.start
-	ObjectSpace.count_objects(h_after)
-
-	assert_equal(h_before[:MRB_TT_HASH] + 1000, h[:MRB_TT_HASH])
-	assert_equal(h_before[:MRB_TT_HASH], h_after[:MRB_TT_HASH])
-
-end
\ No newline at end of file
+  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) })
+
+  assert_true(h.has_key?(:TOTAL))
+  assert_true(h.has_key?(:FREE))
+
+  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))
+
+  GC.start
+  h_after = {}
+  h_before = ObjectSpace.count_objects
+
+  objs = []
+  1000.times do
+    objs << {}
+  end
+  objs = nil
+  ObjectSpace.count_objects(h)
+  GC.start
+  ObjectSpace.count_objects(h_after)
+
+  assert_equal(h[:MRB_TT_HASH], h_before[:MRB_TT_HASH] + 1000)
+  assert_equal(h_after[:MRB_TT_HASH], h_before[:MRB_TT_HASH])
+end