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| author | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-01-31 02:18:58 +0000 |
|---|---|---|
| committer | normal <normal@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-01-31 02:18:58 +0000 |
| commit | 9b69e9fafc329aaa540d5adeb55124f020abfe3c (patch) | |
| tree | c8762b5fbb780498076fb2727dcb65b4226ddb93 /test | |
| parent | ed28d151a38feefb9511aebec3216b1f190485f9 (diff) | |
time.c (time_strftime): avoid garbage in common case
strftime format strings which are dynamically-generated will benefit
from avoiding garbage, here.
* time.c (time_strftime): use rb_str_tmp_frozen_{acquire,release}
* test/ruby/test_time.rb (test_strftime_no_hidden_garbage): new test
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57476 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
| -rw-r--r-- | test/ruby/test_time.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/ruby/test_time.rb b/test/ruby/test_time.rb index d3a8645024..a0d65b6495 100644 --- a/test/ruby/test_time.rb +++ b/test/ruby/test_time.rb @@ -1090,6 +1090,17 @@ class TestTime < Test::Unit::TestCase assert_equal("366", t.strftime("%j")) end + def test_strftime_no_hidden_garbage + fmt = %w(Y m d).map { |x| "%#{x}" }.join('-') # defeats optimization + t = Time.at(0) + ObjectSpace.count_objects(res = {}) # creates strings on first call + before = ObjectSpace.count_objects(res)[:T_STRING] + val = t.strftime(fmt) + after = ObjectSpace.count_objects(res)[:T_STRING] + assert_equal before + 1, after, 'only new string is the created one' + assert_equal '1970-01-01', val + end + def test_num_exact_error bad = EnvUtil.labeled_class("BadValue").new x = EnvUtil.labeled_class("Inexact") do |