aboutsummaryrefslogtreecommitdiffstats
path: root/activesupport/test/core_ext/duration_test.rb
blob: 8469f785664b5b1adf2962d2d2e6182be31c4bfc (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
require 'abstract_unit'
require 'active_support/time'

class DurationTest < ActiveSupport::TestCase
  def test_is_a
    d = 1.day
    assert d.is_a?(ActiveSupport::Duration)
    assert_kind_of ActiveSupport::Duration, d
    assert_kind_of Numeric, d
    assert_kind_of Fixnum, d
    assert !d.is_a?(Hash)

    k = Class.new
    class << k; undef_method :== end
    assert !d.is_a?(k)
  end

  def test_threequals
    assert ActiveSupport::Duration === 1.day
    assert !(ActiveSupport::Duration === 1.day.to_i)
    assert !(ActiveSupport::Duration === 'foo')
    assert !(ActiveSupport::Duration === ActiveSupport::BasicObject.new)
  end

  def test_equals
    assert 1.day == 1.day
    assert 1.day == 1.day.to_i
    assert !(1.day == 'foo')
  end

  def test_inspect
    assert_equal '0 seconds',                       0.seconds.inspect
    assert_equal '1 month',                         1.month.inspect
    assert_equal '1 month and 1 day',               (1.month + 1.day).inspect
    assert_equal '6 months and -2 days',            (6.months - 2.days).inspect
    assert_equal '10 seconds',                      10.seconds.inspect
    assert_equal '10 years, 2 months, and 1 day',   (10.years + 2.months + 1.day).inspect
    assert_equal '7 days',                          1.week.inspect
    assert_equal '14 days',                         1.fortnight.inspect
  end

  def test_minus_with_duration_does_not_break_subtraction_of_date_from_date
    assert_nothing_raised { Date.today - Date.today }
  end

  def test_plus_with_time
    assert_equal 1 + 1.second, 1.second + 1, "Duration + Numeric should == Numeric + Duration"
  end

  def test_argument_error
    begin
      1.second.ago('')
      flunk("no exception was raised")
    rescue ArgumentError => e
      assert_equal 'expected a time or date, got ""', e.message, "ensure ArgumentError is not being raised by dependencies.rb"
    rescue Exception
      flunk("ArgumentError should be raised, but we got #{$!.class} instead")
    end
  end

  def test_fractional_weeks
    assert_equal((86400 * 7) * 1.5, 1.5.weeks)
    assert_equal((86400 * 7) * 1.7, 1.7.weeks)
  end

  def test_fractional_days
    assert_equal 86400 * 1.5, 1.5.days
    assert_equal 86400 * 1.7, 1.7.days
  end

  def test_since_and_ago_with_fractional_days
    t = Time.local(2000)
    # since
    assert_equal 36.hours.since(t), 1.5.days.since(t)
    assert_in_delta((24 * 1.7).hours.since(t), 1.7.days.since(t), 1)
    # ago
    assert_equal 36.hours.ago(t), 1.5.days.ago(t)
    assert_in_delta((24 * 1.7).hours.ago(t), 1.7.days.ago(t), 1)
  end

  def test_since_and_ago_with_fractional_weeks
    t = Time.local(2000)
    # since
    assert_equal((7 * 36).hours.since(t), 1.5.weeks.since(t))
    assert_in_delta((7 * 24 * 1.7).hours.since(t), 1.7.weeks.since(t), 1)
    # ago
    assert_equal((7 * 36).hours.ago(t), 1.5.weeks.ago(t))
    assert_in_delta((7 * 24 * 1.7).hours.ago(t), 1.7.weeks.ago(t), 1)
  end

  def test_since_and_ago_anchored_to_time_now_when_time_zone_default_not_set
    Time.zone_default = nil
    with_env_tz 'US/Eastern' do
      Time.stubs(:now).returns Time.local(2000)
      # since
      assert_equal false, 5.seconds.since.is_a?(ActiveSupport::TimeWithZone)
      assert_equal Time.local(2000,1,1,0,0,5), 5.seconds.since
      # ago
      assert_equal false, 5.seconds.ago.is_a?(ActiveSupport::TimeWithZone)
      assert_equal Time.local(1999,12,31,23,59,55), 5.seconds.ago
    end
  end

  def test_since_and_ago_anchored_to_time_zone_now_when_time_zone_default_set
    Time.zone_default = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
    with_env_tz 'US/Eastern' do
      Time.stubs(:now).returns Time.local(2000)
      # since
      assert_equal true, 5.seconds.since.is_a?(ActiveSupport::TimeWithZone)
      assert_equal Time.utc(2000,1,1,0,0,5), 5.seconds.since.time
      assert_equal 'Eastern Time (US & Canada)', 5.seconds.since.time_zone.name
      # ago
      assert_equal true, 5.seconds.ago.is_a?(ActiveSupport::TimeWithZone)
      assert_equal Time.utc(1999,12,31,23,59,55), 5.seconds.ago.time
      assert_equal 'Eastern Time (US & Canada)', 5.seconds.ago.time_zone.name
    end
  ensure
    Time.zone_default = nil
  end

  def test_adding_hours_across_dst_boundary
    with_env_tz 'CET' do
      assert_equal Time.local(2009,3,29,0,0,0) + 24.hours, Time.local(2009,3,30,1,0,0)
    end
  end

  def test_adding_day_across_dst_boundary
    with_env_tz 'CET' do
      assert_equal Time.local(2009,3,29,0,0,0) + 1.day, Time.local(2009,3,30,0,0,0)
    end
  end

  protected
    def with_env_tz(new_tz = 'US/Eastern')
      old_tz, ENV['TZ'] = ENV['TZ'], new_tz
      yield
    ensure
      old_tz ? ENV['TZ'] = old_tz : ENV.delete('TZ')
    end
end