Timezone at Time.at

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66077 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/test/ruby/test_time_tz.rb b/test/ruby/test_time_tz.rb
index 5360666d3c..777f02bed9 100644
--- a/test/ruby/test_time_tz.rb
+++ b/test/ruby/test_time_tz.rb
@@ -544,6 +544,18 @@ module TestTimeTZ::WithTZ
     assert_equal(time_class.utc(2018, 9, 1, 12+h, m, s), t)
   end
 
+  def subtest_at(time_class, tz, tzarg, tzname, abbr, utc_offset)
+    h, m = (utc_offset / 60).divmod(60)
+    utc = time_class.utc(2018, 9, 1, 12, 0, 0)
+    t = time_class.at(utc, tzarg)
+    assert_equal([2018, 9, 1, 12+h, m, 0, tz], [t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.zone])
+    assert_equal(utc.to_i, t.to_i)
+    utc = utc.to_i
+    t = time_class.at(utc, tzarg)
+    assert_equal([2018, 9, 1, 12+h, m, 0, tz], [t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.zone])
+    assert_equal(utc, t.to_i)
+  end
+
   def subtest_marshal(time_class, tz, tzarg, tzname, abbr, utc_offset)
     t = time_class.new(2018, 9, 1, 12, 0, 0, tzarg)
     t2 = Marshal.load(Marshal.dump(t))