require 'test/unit' require 'date' class TestDateArith < Test::Unit::TestCase def new_offset d = DateTime.new(2002, 3, 14) assert_equal(Rational(9, 24), d.new_offset(Rational(9, 24)).offset) assert_equal(Rational(9, 24), d.new_offset('+0900').offset) end def test__plus d = Date.new(2000,2,29) + -1 assert_equal([2000, 2, 28], [d.year, d.mon, d.mday]) d = Date.new(2000,2,29) + 0 assert_equal([2000, 2, 29], [d.year, d.mon, d.mday]) d = Date.new(2000,2,29) + 1 assert_equal([2000, 3, 1], [d.year, d.mon, d.mday]) d = DateTime.new(2000,2,29) + 1.to_r/2 assert_equal([2000, 2, 29, 12, 0, 0], [d.year, d.mon, d.mday, d.hour, d.min, d.sec]) end def test__plus__ex e = TypeError assert_raise(e) do Date.new(2000,2,29) + 'foo' end assert_raise(e) do DateTime.new(2000,2,29) + 'foo' end assert_raise(e) do Date.new(2000,2,29) + Time.mktime(2000,2,29) end assert_raise(e) do DateTime.new(2000,2,29) + Time.mktime(2000,2,29) end end def test__minus d = Date.new(2000,3,1) - -1 assert_equal([2000, 3, 2], [d.year, d.mon, d.mday]) d = Date.new(2000,3,1) - 0 assert_equal([2000, 3, 1], [d.year, d.mon, d.mday]) d = Date.new(2000,3,1) - 1 assert_equal([2000, 2, 29], [d.year, d.mon, d.mday]) d = Date.new(2000,3,1) - Date.new(2000,2,29) assert_equal(1, d) d = Date.new(2000,2,29) - Date.new(2000,3,1) assert_equal(-1, d) d = DateTime.new(2000,3,1) - 1.to_r/2 assert_equal([2000, 2, 29, 12, 0, 0], [d.year, d.mon, d.mday, d.hour, d.min, d.sec]) end def test__minus__ex e = TypeError assert_raise(e) do Date.new(2000,2,29) - 'foo' end assert_raise(e) do DateTime.new(2000,2,29) - 'foo' end assert_raise(e) do Date.new(2000,2,29) - Time.mktime(2000,2,29) end assert_raise(e) do DateTime.new(2000,2,29) - Time.mktime(2000,2,29) end end def test__compare assert_equal(0, (Date.new(2000,1,1) <=> Date.new(2000,1,1))) assert_equal(-1, (Date.new(2000,1,1) <=> Date.new(2000,1,2))) assert_equal(1, (Date.new(2000,1,2) <=> Date.new(2000,1,1))) assert_equal(0, (Date.new(2001,1,4,Date::JULIAN) <=> Date.new(2001,1,17, Date::GREGORIAN))) assert_equal(0, (DateTime.new(2001,1,4,0,0,0,0,Date::JULIAN) <=> DateTime.new(2001,1,17,0,0,0,0,Date::GREGORIAN))) end def test_prev d = Date.new(2000,1,1) assert_raise(NoMethodError) do d.prev end end def test_prev_day d = Date.new(2001,1,1).prev_day assert_equal([2000, 12, 31], [d.year, d.mon, d.mday]) d = Date.new(2001,1,1).prev_day(2) assert_equal([2000, 12, 30], [d.year, d.mon, d.mday]) d = Date.new(2000,12,31).prev_day(-2) assert_equal([2001, 1, 2], [d.year, d.mon, d.mday]) d = DateTime.new(2000,3,1).prev_day(1.to_r/2) assert_equal([2000, 2, 29, 12, 0, 0], [d.year, d.mon, d.mday, d.hour, d.min, d.sec]) end def test_prev_month d = Date.new(2000,1,31) << -1 assert_equal([2000, 2, 29], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31) << 1 assert_equal([1999, 12, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31) << 12 assert_equal([1999, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31) << 14 assert_equal([1998, 11, 30], [d.year, d.mon, d.mday]) end def test_prev_month__2 d = Date.new(2000,1,31).prev_month(-1) assert_equal([2000, 2, 29], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).prev_month assert_equal([1999, 12, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).prev_month(12) assert_equal([1999, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).prev_month(14) assert_equal([1998, 11, 30], [d.year, d.mon, d.mday]) end def test_prev_year d = Date.new(2000,1,31).prev_year(-1) assert_equal([2001, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).prev_year assert_equal([1999, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).prev_year(10) assert_equal([1990, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).prev_year(100) assert_equal([1900, 1, 31], [d.year, d.mon, d.mday]) end def test_next d = Date.new(2000,12,31).next assert_equal([2001, 1, 1], [d.year, d.mon, d.mday]) d = Date.new(2000,12,31).succ assert_equal([2001, 1, 1], [d.year, d.mon, d.mday]) d = Date.today d2 = d.next assert_equal(d, (d2 - 1)) d = Date.today d2 = d.succ assert_equal(d, (d2 - 1)) d = DateTime.now d2 = d.next assert_equal(d, (d2 - 1)) d = DateTime.now d2 = d.succ assert_equal(d, (d2 - 1)) end def test_next_day d = Date.new(2000,12,31).next_day assert_equal([2001, 1, 1], [d.year, d.mon, d.mday]) d = Date.new(2000,12,31).next_day(2) assert_equal([2001, 1, 2], [d.year, d.mon, d.mday]) d = Date.new(2001,1,1).next_day(-2) assert_equal([2000, 12, 30], [d.year, d.mon, d.mday]) d = DateTime.new(2000,2,29).next_day(1.to_r/2) assert_equal([2000, 2, 29, 12, 0, 0], [d.year, d.mon, d.mday, d.hour, d.min, d.sec]) end def test_next_month d = Date.new(2000,1,31) >> -1 assert_equal([1999, 12, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31) >> 1 assert_equal([2000, 2, 29], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31) >> 12 assert_equal([2001, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31) >> 13 assert_equal([2001, 2, 28], [d.year, d.mon, d.mday]) end def test_next_month__2 d = Date.new(2000,1,31).next_month(-1) assert_equal([1999, 12, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).next_month assert_equal([2000, 2, 29], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).next_month(12) assert_equal([2001, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).next_month(13) assert_equal([2001, 2, 28], [d.year, d.mon, d.mday]) end def test_next_year d = Date.new(2000,1,31).next_year(-1) assert_equal([1999, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).next_year assert_equal([2001, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).next_year(10) assert_equal([2010, 1, 31], [d.year, d.mon, d.mday]) d = Date.new(2000,1,31).next_year(100) assert_equal([2100, 1, 31], [d.year, d.mon, d.mday]) end def test_downto p = Date.new(2001,1,14) q = Date.new(2001,1,7) i = 0 p.downto(q) do |d| i += 1 end assert_equal(8, i) end def test_downto__noblock p = Date.new(2001,1,14) q = Date.new(2001,1,7) e = p.downto(q) assert_equal(8, e.to_a.size) end def test_upto p = Date.new(2001,1,14) q = Date.new(2001,1,21) i = 0 p.upto(q) do |d| i += 1 end assert_equal(8, i) end def test_upto__noblock p = Date.new(2001,1,14) q = Date.new(2001,1,21) e = p.upto(q) assert_equal(8, e.to_a.size) end def test_step p = Date.new(2001,1,14) q = Date.new(2001,1,21) i = 0 p.step(q, 2) do |d| i += 1 end assert_equal(4, i) i = 0 p.step(q) do |d| i += 1 end assert_equal(8, i) end def test_step__noblock p = Date.new(2001,1,14) q = Date.new(2001,1,21) e = p.step(q, 2) assert_equal(4, e.to_a.size) e = p.step(q) assert_equal(8, e.to_a.size) end =begin def test_step__inf p = Date.new(2001,1,14) q = Date.new(2001,1,21) inf = 1.0/0 if inf.infinite? [p, q].each do |a| [p, q].each do |b| [inf, -inf].each do |c| i = 0 a.step(b, c) do |d| i += 1 end assert_equal(0, i) end end end end end =end end