aboutsummaryrefslogtreecommitdiffstats
path: root/activesupport/test/time_zone_test.rb
blob: 43f60690d95a153ff3e8ef047514a23fccddaf35 (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
require 'abstract_unit'

class TimeZoneTest < Test::Unit::TestCase
  
  uses_tzinfo 'TestTimeZoneCalculations' do
    
    def test_utc_to_local
      silence_warnings do # silence warnings raised by tzinfo gem
        zone = TimeZone['Eastern Time (US & Canada)']
        assert_equal Time.utc(1999, 12, 31, 19), zone.utc_to_local(Time.utc(2000, 1)) # standard offset -0500
        assert_equal Time.utc(2000, 6, 30, 20), zone.utc_to_local(Time.utc(2000, 7)) # dst offset -0400
      end
    end
  
    def test_local_to_utc
      silence_warnings do # silence warnings raised by tzinfo gem
        zone = TimeZone['Eastern Time (US & Canada)']
        assert_equal Time.utc(2000, 1, 1, 5), zone.local_to_utc(Time.utc(2000, 1)) # standard offset -0500
        assert_equal Time.utc(2000, 7, 1, 4), zone.local_to_utc(Time.utc(2000, 7)) # dst offset -0400
      end
    end
    
    def test_period_for_local
      silence_warnings do # silence warnings raised by tzinfo gem
        zone = TimeZone['Eastern Time (US & Canada)']
        assert_instance_of TZInfo::TimezonePeriod, zone.period_for_local(Time.utc(2000))
      end
    end
    
    TimeZone::MAPPING.keys.each do |name|
      define_method("test_map_#{name.downcase.gsub(/[^a-z]/, '_')}_to_tzinfo") do
        silence_warnings do # silence warnings raised by tzinfo gem
          zone = TimeZone[name]
          assert zone.tzinfo.respond_to?(:period_for_local)
        end
      end
    end

    def test_from_integer_to_map
      assert_instance_of TimeZone, TimeZone[-28800] # PST
    end

    def test_from_duration_to_map
      assert_instance_of TimeZone, TimeZone[-480.minutes] # PST
    end

    TimeZone.all.each do |zone|
      name = zone.name.downcase.gsub(/[^a-z]/, '_')
      define_method("test_from_#{name}_to_map") do
        silence_warnings do # silence warnings raised by tzinfo gem
          assert_instance_of TimeZone, TimeZone[zone.name]
        end
      end

      define_method("test_utc_offset_for_#{name}") do
        silence_warnings do # silence warnings raised by tzinfo gem
          period = zone.tzinfo.period_for_utc(Time.utc(2006,1,1,0,0,0))
          assert_equal period.utc_offset, zone.utc_offset
        end
      end
    end

    uses_mocha 'TestTimeZoneNowAndToday' do
      def test_now
        TZInfo::DataTimezone.any_instance.stubs(:now).returns(Time.utc(2000))
        zone = TimeZone['Eastern Time (US & Canada)']
        assert_instance_of ActiveSupport::TimeWithZone, zone.now
        assert_equal Time.utc(2000), zone.now.time
        assert_equal zone, zone.now.time_zone
      end
    
      def test_today
        TZInfo::DataTimezone.any_instance.stubs(:now).returns(Time.utc(2000))
        assert_equal Date.new(2000), TimeZone['Eastern Time (US & Canada)'].today
      end
    end
  end
  
  def test_formatted_offset_positive
    zone = TimeZone['Moscow']
    assert_equal "+03:00", zone.formatted_offset
    assert_equal "+0300", zone.formatted_offset(false)
  end
  
  def test_formatted_offset_negative
    zone = TimeZone['Eastern Time (US & Canada)']
    assert_equal "-05:00", zone.formatted_offset
    assert_equal "-0500", zone.formatted_offset(false)
  end
  
  def test_formatted_offset_zero
    zone = TimeZone['London']
    assert_equal "+00:00", zone.formatted_offset
    assert_equal "UTC", zone.formatted_offset(true, 'UTC')
  end
  
  def test_zone_compare
    zone1 = TimeZone['Central Time (US & Canada)'] # offset -0600
    zone2 = TimeZone['Eastern Time (US & Canada)'] # offset -0500
    assert zone1 < zone2
    assert zone2 > zone1
    assert zone1 == zone1
  end
  
  def test_to_s
    assert_equal "(UTC+03:00) Moscow", TimeZone['Moscow'].to_s
  end
  
  def test_all_sorted
    all = TimeZone.all
    1.upto( all.length-1 ) do |i|
      assert all[i-1] < all[i]
    end
  end
  
  def test_index
    assert_nil TimeZone["bogus"]
    assert_instance_of TimeZone, TimeZone["Central Time (US & Canada)"]
    assert_instance_of TimeZone, TimeZone[8]
    assert_raises(ArgumentError) { TimeZone[false] }
  end
  
  def test_new
    assert_equal TimeZone["Central Time (US & Canada)"], TimeZone.new("Central Time (US & Canada)")
  end
  
  def test_us_zones
    assert TimeZone.us_zones.include?(TimeZone["Hawaii"])
    assert !TimeZone.us_zones.include?(TimeZone["Kuala Lumpur"])
  end 
  
  def test_local
    time = TimeZone["Hawaii"].local(2007, 2, 5, 15, 30, 45)
    assert_equal Time.utc(2007, 2, 5, 15, 30, 45), time.time
    assert_equal TimeZone["Hawaii"], time.time_zone
  end
end