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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
|
require 'test/unit'
class TestStringchar < Test::Unit::TestCase
def test_string
assert_equal("abcd", "abcd")
assert_match(/abcd/, "abcd")
assert("abcd" === "abcd")
# compile time string concatenation
assert_equal("abcd", "ab" "cd")
assert_equal("22aacd44", "#{22}aa" "cd#{44}")
assert_equal("22aacd445566", "#{22}aa" "cd#{44}" "55" "#{66}")
assert("abc" !~ /^$/)
assert("abc\n" !~ /^$/)
assert("abc" !~ /^d*$/)
assert_equal(3, ("abc" =~ /d*$/))
assert("" =~ /^$/)
assert("\n" =~ /^$/)
assert("a\n\n" =~ /^$/)
assert("abcabc" =~ /.*a/); assert_equal("abca", $&)
assert("abcabc" =~ /.*c/); assert_equal("abcabc", $&)
assert("abcabc" =~ /.*?a/); assert_equal("a", $&)
assert("abcabc" =~ /.*?c/); assert_equal("abc", $&)
assert(/(.|\n)*?\n(b|\n)/ =~ "a\nb\n\n"); assert_equal("a\nb", $&)
assert(/^(ab+)+b/ =~ "ababb"); assert_equal("ababb", $&)
assert(/^(?:ab+)+b/ =~ "ababb"); assert_equal("ababb", $&)
assert(/^(ab+)+/ =~ "ababb"); assert_equal("ababb", $&)
assert(/^(?:ab+)+/ =~ "ababb"); assert_equal("ababb", $&)
assert(/(\s+\d+){2}/ =~ " 1 2"); assert_equal(" 1 2", $&)
assert(/(?:\s+\d+){2}/ =~ " 1 2"); assert_equal(" 1 2", $&)
$x = <<END;
ABCD
ABCD
END
$x.gsub!(/((.|\n)*?)B((.|\n)*?)D/m ,'\1\3')
assert_equal("AC\nAC\n", $x)
assert("foobar" =~ /foo(?=(bar)|(baz))/)
assert("foobaz" =~ /foo(?=(bar)|(baz))/)
$foo = "abc"
assert_equal("abc = abc", "#$foo = abc")
assert_equal("abc = abc", "#{$foo} = abc")
foo = "abc"
assert_equal("abc = abc", "#{foo} = abc")
assert_equal('-----', '-' * 5)
assert_equal('-', '-' * 1)
assert_equal('', '-' * 0)
foo = '-'
assert_equal('-----', foo * 5)
assert_equal('-', foo * 1)
assert_equal('', foo * 0)
$x = "a.gif"
assert_equal("gif", $x.sub(/.*\.([^\.]+)$/, '\1'))
assert_equal("b.gif", $x.sub(/.*\.([^\.]+)$/, 'b.\1'))
assert_equal("", $x.sub(/.*\.([^\.]+)$/, '\2'))
assert_equal("ab", $x.sub(/.*\.([^\.]+)$/, 'a\2b'))
assert_equal("<a.gif>", $x.sub(/.*\.([^\.]+)$/, '<\&>'))
end
def test_char
# character constants(assumes ASCII)
assert_equal(?a, "a"[0])
assert_equal(?a, ?a)
assert_equal("\1", ?\C-a)
assert_equal("\341", ?\M-a)
assert_equal("\201", ?\M-\C-a)
assert_equal(?A, "a".upcase![0])
assert_equal(?a, "A".downcase![0])
assert_equal("ABC", "abc".tr!("a-z", "A-Z"))
assert_equal("ABC", "aabbcccc".tr_s!("a-z", "A-Z"))
assert_equal("abc", "abcc".squeeze!("a-z"))
assert_equal("ad", "abcd".delete!("bc"))
$x = "abcdef"
$y = [ ?a, ?b, ?c, ?d, ?e, ?f ]
$bad = false
$x.each_byte {|i|
if i.chr != $y.shift
$bad = true
break
end
}
assert(!$bad)
s = "a string"
s[0..s.size]="another string"
assert_equal("another string", s)
s = <<EOS
#{
[1,2,3].join(",")
}
EOS
assert_equal("1,2,3\n", s)
assert_equal(926381, "Just".to_i(36))
assert_equal(-23200231779, "-another".to_i(36))
assert_equal("ruby", 1299022.to_s(36))
assert_equal("-hacker", -1045307475.to_s(36))
assert_equal(265419172580680477752431643787347, "Just_another_Ruby_hacker".to_i(36))
assert_equal("-justanotherrubyhacker", -265419172580680477752431643787347.to_s(36))
a = []
(0..255).each {|n|
ch = [n].pack("C")
a.push ch if /a#{Regexp.quote ch}b/x =~ "ab"
}
assert_equal(0, a.size)
end
def test_bang
s = "aBc"
s.upcase
assert_equal("aBc", s)
s.upcase!
assert_equal("ABC", s)
s = "aBc"
s.downcase
assert_equal("aBc", s)
s.downcase!
assert_equal("abc", s)
s = "aBc"
s.swapcase
assert_equal("aBc", s)
s.swapcase!
assert_equal("AbC", s)
s = "aBc"
s.capitalize
assert_equal("aBc", s)
s.capitalize!
assert_equal("Abc", s)
s = "aBc"
s.tr("a-z", "A-Z")
assert_equal("aBc", s)
s.tr!("a-z", "A-Z")
assert_equal("ABC", s)
s = "aaBBcc"
s.tr_s("a-z", "A-Z")
assert_equal("aaBBcc", s)
s.tr_s!("a-z", "A-Z")
assert_equal("ABBC", s)
s = "aaBBcc"
s.squeeze("a-z")
assert_equal("aaBBcc", s)
s.squeeze!("a-z")
assert_equal("aBBc", s)
s = "aaBBcc"
s.delete("a-z")
assert_equal("aaBBcc", s)
s.delete!("a-z")
assert_equal("BB", s)
end
end
|
