summaryrefslogtreecommitdiff
path: root/test/-ext-/num2int/test_num2int.rb
blob: dfc334c786bfccd116e491fa99191340619033a3 (plain)
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
141
142
require 'test/unit'

class TestNum2int < Test::Unit::TestCase
  module Num2int
  end
  require '-test-/num2int/num2int'

  SHRT_MIN = -32768
  SHRT_MAX = 32767
  USHRT_MAX = 65535

  INT_MIN = -2147483648
  INT_MAX = 2147483647
  UINT_MAX = 4294967295

  case [0].pack('L!').size
  when 4
    LONG_MAX = 2147483647
    LONG_MIN = -2147483648
    ULONG_MAX = 4294967295
  when 8
    LONG_MAX = 9223372036854775807
    LONG_MIN = -9223372036854775808
    ULONG_MAX = 18446744073709551615
  end

  LLONG_MAX = 9223372036854775807
  LLONG_MIN = -9223372036854775808
  ULLONG_MAX = 18446744073709551615

  FIXNUM_MAX = LONG_MAX/2
  FIXNUM_MIN = LONG_MIN/2

  def assert_num2i_success(type, num, result=num)
    method = "print_num2#{type}"
    assert_output(result.to_s) do
      Num2int.send(method, num)
    end
    if num.to_f.to_i == num
      assert_output(result.to_s) do
	Num2int.send(method, num.to_f)
      end
    end
  end

  def assert_num2i_error(type, num)
    method = "print_num2#{type}"
    assert_raise(RangeError) do
      Num2int.send(method, num)
    end
    if num.to_f.to_i == num
      assert_raise(RangeError) do
	Num2int.send(method, num)
      end
    end
  end

  def test_num2short
    assert_num2i_success(:short, SHRT_MIN)
    assert_num2i_success(:short, SHRT_MAX)
    assert_num2i_error(:short, SHRT_MIN-1)
    assert_num2i_error(:short, SHRT_MAX+1)
  end

  def test_num2ushort
    assert_num2i_success(:ushort, 0)
    assert_num2i_success(:ushort, USHRT_MAX)
    assert_num2i_success(:ushort, -1, USHRT_MAX)
    assert_num2i_success(:ushort, SHRT_MIN, SHRT_MAX+1)
    assert_num2i_error(:ushort, SHRT_MIN-1)
    assert_num2i_error(:ushort, USHRT_MAX+1)
  end

  def test_num2int
    assert_num2i_success(:int, INT_MIN)
    assert_num2i_success(:int, INT_MAX)
    assert_num2i_error(:int, INT_MIN-1)
    assert_num2i_error(:int, INT_MAX+1)
  end

  def test_num2uint
    assert_num2i_success(:uint, 0)
    assert_num2i_success(:uint, UINT_MAX)
    assert_num2i_success(:uint, -1, UINT_MAX)
    assert_num2i_success(:uint, INT_MIN, INT_MAX+1)
    assert_num2i_error(:uint, INT_MIN-1)
    assert_num2i_error(:uint, UINT_MAX+1)
  end

  def test_num2long
    #assert_output(LONG_MIN.to_s) do
    #  Num2int.print_num2long(LONG_MIN.to_f)
    #end
    assert_num2i_success(:long, LONG_MIN)
    assert_num2i_success(:long, LONG_MAX)
    assert_num2i_error(:long, LONG_MIN-1)
    assert_num2i_error(:long, LONG_MAX+1)
    assert_num2i_success(:long, FIXNUM_MIN)
    assert_num2i_success(:long, FIXNUM_MIN-1)
    assert_num2i_success(:long, FIXNUM_MAX)
    assert_num2i_success(:long, FIXNUM_MAX+1)
  end

  def test_num2ulong
    assert_num2i_success(:ulong, 0)
    assert_num2i_success(:ulong, ULONG_MAX)
    assert_num2i_success(:ulong, -1, ULONG_MAX)
    assert_num2i_success(:ulong, LONG_MIN, LONG_MAX+1)
    assert_num2i_error(:ulong, LONG_MIN-1)
    assert_num2i_error(:ulong, ULONG_MAX+1)
    assert_num2i_success(:ulong, FIXNUM_MIN, ULONG_MAX-FIXNUM_MAX)
    assert_num2i_success(:ulong, FIXNUM_MIN-1, ULONG_MAX-FIXNUM_MAX-1)
    assert_num2i_success(:ulong, FIXNUM_MAX, FIXNUM_MAX)
    assert_num2i_success(:ulong, FIXNUM_MAX+1, FIXNUM_MAX+1)
  end

  def test_num2ll
    assert_num2i_success(:ll, LLONG_MIN)
    assert_num2i_success(:ll, LLONG_MAX)
    assert_num2i_error(:ll, LLONG_MIN-1)
    assert_num2i_error(:ll, LLONG_MAX+1)
    assert_num2i_success(:ll, FIXNUM_MIN)
    assert_num2i_success(:ll, FIXNUM_MIN-1)
    assert_num2i_success(:ll, FIXNUM_MAX)
    assert_num2i_success(:ll, FIXNUM_MAX+1)
  end if defined?(Num2int.print_num2ll)

  def test_num2ull
    assert_num2i_success(:ull, 0)
    assert_num2i_success(:ull, ULLONG_MAX)
    assert_num2i_success(:ull, -1, ULLONG_MAX)
    assert_num2i_success(:ull, LLONG_MIN, LLONG_MAX+1)
    assert_num2i_error(:ull, LLONG_MIN-1)
    assert_num2i_error(:ull, ULLONG_MAX+1)
    assert_num2i_success(:ull, FIXNUM_MIN, ULLONG_MAX-FIXNUM_MAX)
    assert_num2i_success(:ull, FIXNUM_MIN-1, ULLONG_MAX-FIXNUM_MAX-1)
    assert_num2i_success(:ull, FIXNUM_MAX)
    assert_num2i_success(:ull, FIXNUM_MAX+1)
  end if defined?(Num2int.print_num2ull)
end