require 'test/unit' require 'date' class TestDateConv < Test::Unit::TestCase def test_to_class [Time.now, Date.today, DateTime.now].each do |o| assert_instance_of(Time, o.to_time) assert_instance_of(Date, o.to_date) assert_instance_of(DateTime, o.to_datetime) end end def test_to_time__from_time t = Time.mktime(2004, 9, 19, 1, 2, 3, 456789) t2 = t.to_time assert_equal([2004, 9, 19, 1, 2, 3, 456789], [t2.year, t2.mon, t2.mday, t2.hour, t2.min, t2.sec, t2.usec]) t = Time.utc(2004, 9, 19, 1, 2, 3, 456789) t2 = t.to_time.utc assert_equal([2004, 9, 19, 1, 2, 3, 456789], [t2.year, t2.mon, t2.mday, t2.hour, t2.min, t2.sec, t2.usec]) end def test_to_time__from_date d = Date.new(2004, 9, 19) t = d.to_time assert_equal([2004, 9, 19, 0, 0, 0, 0], [t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.usec]) end def test_to_time__from_datetime d = DateTime.new(2004, 9, 19, 1, 2, 3, 9.to_r/24) + 456789.to_r/86400000000 t = d.to_time if t.utc_offset == 9*60*60 assert_equal([2004, 9, 19, 1, 2, 3, 456789], [t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.usec]) end d = DateTime.new(2004, 9, 19, 1, 2, 3, 0) + 456789.to_r/86400000000 t = d.to_time.utc assert_equal([2004, 9, 19, 1, 2, 3, 456789], [t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.usec]) if Time.allocate.respond_to?(:nsec) d = DateTime.new(2004, 9, 19, 1, 2, 3, 0) + 456789123.to_r/86400000000000 t = d.to_time.utc assert_equal([2004, 9, 19, 1, 2, 3, 456789123], [t.year, t.mon, t.mday, t.hour, t.min, t.sec, t.nsec]) end end def test_to_date__from_time t = Time.mktime(2004, 9, 19, 1, 2, 3, 456789) d = t.to_date assert_equal([2004, 9, 19, 0], [d.year, d.mon, d.mday, d.day_fraction]) t = Time.utc(2004, 9, 19, 1, 2, 3, 456789) d = t.to_date assert_equal([2004, 9, 19, 0], [d.year, d.mon, d.mday, d.day_fraction]) end def test_to_date__from_date d = Date.new(2004, 9, 19) + 1.to_r/2 d2 = d.to_date assert_equal([2004, 9, 19, 1.to_r/2], [d2.year, d2.mon, d2.mday, d2.day_fraction]) end def test_to_date__from_datetime d = DateTime.new(2004, 9, 19, 1, 2, 3, 9.to_r/24) + 456789.to_r/86400000000 d2 = d.to_date assert_equal([2004, 9, 19, 0], [d2.year, d2.mon, d2.mday, d2.day_fraction]) d = DateTime.new(2004, 9, 19, 1, 2, 3, 0) + 456789.to_r/86400000000 d2 = d.to_date assert_equal([2004, 9, 19, 0], [d2.year, d2.mon, d2.mday, d2.day_fraction]) end def test_to_datetime__from_time t = Time.mktime(2004, 9, 19, 1, 2, 3, 456789) d = t.to_datetime assert_equal([2004, 9, 19, 1, 2, 3, 456789.to_r/1000000, t.utc_offset.to_r/86400], [d.year, d.mon, d.mday, d.hour, d.min, d.sec, d.sec_fraction, d.offset]) t = Time.utc(2004, 9, 19, 1, 2, 3, 456789) d = t.to_datetime assert_equal([2004, 9, 19, 1, 2, 3, 456789.to_r/1000000, 0], [d.year, d.mon, d.mday, d.hour, d.min, d.sec, d.sec_fraction, d.offset]) t = Time.now d = t.to_datetime require 'time' assert_equal(t.iso8601(10), d.iso8601(10)) end def test_to_datetime__from_date d = Date.new(2004, 9, 19) + 1.to_r/2 d2 = d.to_datetime assert_equal([2004, 9, 19, 0, 0, 0, 0, 0], [d2.year, d2.mon, d2.mday, d2.hour, d2.min, d2.sec, d2.sec_fraction, d2.offset]) end def test_to_datetime__from_datetime d = DateTime.new(2004, 9, 19, 1, 2, 3, 9.to_r/24) + 456789.to_r/86400000000 d2 = d.to_datetime assert_equal([2004, 9, 19, 1, 2, 3, 456789.to_r/1000000, 9.to_r/24], [d2.year, d2.mon, d2.mday, d2.hour, d2.min, d2.sec, d2.sec_fraction, d2.offset]) d = DateTime.new(2004, 9, 19, 1, 2, 3, 0) + 456789.to_r/86400000000 d2 = d.to_datetime assert_equal([2004, 9, 19, 1, 2, 3, 456789.to_r/1000000, 0], [d2.year, d2.mon, d2.mday, d2.hour, d2.min, d2.sec, d2.sec_fraction, d2.offset]) end end