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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
require_relative '../../spec_helper'
describe "Integer#chr without argument" do
it "returns a String" do
17.chr.should be_an_instance_of(String)
end
it "returns a new String for each call" do
82.chr.should_not equal(82.chr)
end
it "raises a RangeError is self is less than 0" do
lambda { -1.chr }.should raise_error(RangeError)
lambda { -bignum_value.chr }.should raise_error(RangeError)
end
describe "when Encoding.default_internal is nil" do
describe "and self is between 0 and 127 (inclusive)" do
it "returns a US-ASCII String" do
(0..127).each do |c|
c.chr.encoding.should == Encoding::US_ASCII
end
end
it "returns a String encoding self interpreted as a US-ASCII codepoint" do
(0..127).each do |c|
c.chr.bytes.to_a.should == [c]
end
end
end
describe "and self is between 128 and 255 (inclusive)" do
it "returns an ASCII-8BIT String" do
(128..255).each do |c|
c.chr.encoding.should == Encoding::ASCII_8BIT
end
end
it "returns a String containing self interpreted as a byte" do
(128..255).each do |c|
c.chr.bytes.to_a.should == [c]
end
end
end
it "raises a RangeError is self is greater than 255" do
lambda { 256.chr }.should raise_error(RangeError)
lambda { bignum_value.chr }.should raise_error(RangeError)
end
end
describe "when Encoding.default_internal is not nil" do
before do
@default_internal = Encoding.default_internal
end
after do
Encoding.default_internal = @default_internal
end
describe "and self is between 0 and 127 (inclusive)" do
it "returns a US-ASCII String" do
(0..127).each do |c|
Encoding.default_internal = Encoding::UTF_8
c.chr.encoding.should == Encoding::US_ASCII
Encoding.default_internal = Encoding::SHIFT_JIS
c.chr.encoding.should == Encoding::US_ASCII
end
end
it "returns a String encoding self interpreted as a US-ASCII codepoint" do
(0..127).each do |c|
Encoding.default_internal = Encoding::UTF_8
c.chr.bytes.to_a.should == [c]
Encoding.default_internal = Encoding::SHIFT_JIS
c.chr.bytes.to_a.should == [c]
end
end
end
describe "and self is between 128 and 255 (inclusive)" do
it "returns an ASCII-8BIT String" do
(128..255).each do |c|
Encoding.default_internal = Encoding::UTF_8
c.chr.encoding.should == Encoding::ASCII_8BIT
Encoding.default_internal = Encoding::SHIFT_JIS
c.chr.encoding.should == Encoding::ASCII_8BIT
end
end
it "returns a String containing self interpreted as a byte" do
(128..255).each do |c|
Encoding.default_internal = Encoding::UTF_8
c.chr.bytes.to_a.should == [c]
Encoding.default_internal = Encoding::SHIFT_JIS
c.chr.bytes.to_a.should == [c]
end
end
end
describe "and self is greater than 255" do
it "returns a String with the default internal encoding" do
Encoding.default_internal = Encoding::UTF_8
0x0100.chr.encoding.should == Encoding::UTF_8
0x3000.chr.encoding.should == Encoding::UTF_8
Encoding.default_internal = Encoding::SHIFT_JIS
0x8140.chr.encoding.should == Encoding::SHIFT_JIS
0xFC4B.chr.encoding.should == Encoding::SHIFT_JIS
end
it "returns a String encoding self interpreted as a codepoint in the default internal encoding" do
Encoding.default_internal = Encoding::UTF_8
0x0100.chr.bytes.to_a.should == [0xC4, 0x80]
0x3000.chr.bytes.to_a.should == [0xE3, 0x80, 0x80]
Encoding.default_internal = Encoding::SHIFT_JIS
0x8140.chr.bytes.to_a.should == [0x81, 0x40] # Smallest assigned CP932 codepoint greater than 255
0xFC4B.chr.bytes.to_a.should == [0xFC, 0x4B] # Largest assigned CP932 codepoint
end
# #5864
it "raises RangeError if self is invalid as a codepoint in the default internal encoding" do
[ [0x0100, "US-ASCII"],
[0x0100, "ASCII-8BIT"],
[0x0100, "EUC-JP"],
[0xA1A0, "EUC-JP"],
[0x0100, "ISO-8859-9"],
[620, "TIS-620"]
].each do |integer, encoding_name|
Encoding.default_internal = Encoding.find(encoding_name)
lambda { integer.chr }.should raise_error(RangeError)
end
end
end
end
end
describe "Integer#chr with an encoding argument" do
it "returns a String" do
900.chr(Encoding::UTF_8).should be_an_instance_of(String)
end
it "returns a new String for each call" do
8287.chr(Encoding::UTF_8).should_not equal(8287.chr(Encoding::UTF_8))
end
it "accepts a String as an argument" do
lambda { 0xA4A2.chr('euc-jp') }.should_not raise_error
end
it "converts a String to an Encoding as Encoding.find does" do
['utf-8', 'UTF-8', 'Utf-8'].each do |encoding|
7894.chr(encoding).encoding.should == Encoding::UTF_8
end
end
# http://redmine.ruby-lang.org/issues/4869
it "raises a RangeError is self is less than 0" do
lambda { -1.chr(Encoding::UTF_8) }.should raise_error(RangeError)
lambda { -bignum_value.chr(Encoding::EUC_JP) }.should raise_error(RangeError)
end
it "raises a RangeError if self is too large" do
lambda { 2206368128.chr(Encoding::UTF_8) }.should raise_error(RangeError)
end
it "returns a String with the specified encoding" do
0x0000.chr(Encoding::US_ASCII).encoding.should == Encoding::US_ASCII
0x007F.chr(Encoding::US_ASCII).encoding.should == Encoding::US_ASCII
0x0000.chr(Encoding::ASCII_8BIT).encoding.should == Encoding::ASCII_8BIT
0x007F.chr(Encoding::ASCII_8BIT).encoding.should == Encoding::ASCII_8BIT
0x0080.chr(Encoding::ASCII_8BIT).encoding.should == Encoding::ASCII_8BIT
0x00FF.chr(Encoding::ASCII_8BIT).encoding.should == Encoding::ASCII_8BIT
0x0000.chr(Encoding::UTF_8).encoding.should == Encoding::UTF_8
0x007F.chr(Encoding::UTF_8).encoding.should == Encoding::UTF_8
0x0080.chr(Encoding::UTF_8).encoding.should == Encoding::UTF_8
0x00FF.chr(Encoding::UTF_8).encoding.should == Encoding::UTF_8
0x0100.chr(Encoding::UTF_8).encoding.should == Encoding::UTF_8
0x3000.chr(Encoding::UTF_8).encoding.should == Encoding::UTF_8
0x0000.chr(Encoding::SHIFT_JIS).encoding.should == Encoding::SHIFT_JIS
0x007F.chr(Encoding::SHIFT_JIS).encoding.should == Encoding::SHIFT_JIS
0x00A1.chr(Encoding::SHIFT_JIS).encoding.should == Encoding::SHIFT_JIS
0x00DF.chr(Encoding::SHIFT_JIS).encoding.should == Encoding::SHIFT_JIS
0x8140.chr(Encoding::SHIFT_JIS).encoding.should == Encoding::SHIFT_JIS
0xFC4B.chr(Encoding::SHIFT_JIS).encoding.should == Encoding::SHIFT_JIS
end
it "returns a String encoding self interpreted as a codepoint in the specified encoding" do
0x0000.chr(Encoding::US_ASCII).bytes.to_a.should == [0x00]
0x007F.chr(Encoding::US_ASCII).bytes.to_a.should == [0x7F]
0x0000.chr(Encoding::ASCII_8BIT).bytes.to_a.should == [0x00]
0x007F.chr(Encoding::ASCII_8BIT).bytes.to_a.should == [0x7F]
0x0080.chr(Encoding::ASCII_8BIT).bytes.to_a.should == [0x80]
0x00FF.chr(Encoding::ASCII_8BIT).bytes.to_a.should == [0xFF]
0x0000.chr(Encoding::UTF_8).bytes.to_a.should == [0x00]
0x007F.chr(Encoding::UTF_8).bytes.to_a.should == [0x7F]
0x0080.chr(Encoding::UTF_8).bytes.to_a.should == [0xC2, 0x80]
0x00FF.chr(Encoding::UTF_8).bytes.to_a.should == [0xC3, 0xBF]
0x0100.chr(Encoding::UTF_8).bytes.to_a.should == [0xC4, 0x80]
0x3000.chr(Encoding::UTF_8).bytes.to_a.should == [0xE3, 0x80, 0x80]
0x0000.chr(Encoding::SHIFT_JIS).bytes.to_a.should == [0x00]
0x007F.chr(Encoding::SHIFT_JIS).bytes.to_a.should == [0x7F]
0x00A1.chr(Encoding::SHIFT_JIS).bytes.to_a.should == [0xA1]
0x00DF.chr(Encoding::SHIFT_JIS).bytes.to_a.should == [0xDF]
0x8140.chr(Encoding::SHIFT_JIS).bytes.to_a.should == [0x81, 0x40] # Smallest assigned CP932 codepoint greater than 255
0xFC4B.chr(Encoding::SHIFT_JIS).bytes.to_a.should == [0xFC, 0x4B] # Largest assigned CP932 codepoint
end
# #5864
it "raises RangeError if self is invalid as a codepoint in the specified encoding" do
[ [0x80, "US-ASCII"],
[0x0100, "ASCII-8BIT"],
[0x0100, "EUC-JP"],
[0xA1A0, "EUC-JP"],
[0xA1, "EUC-JP"],
[0x80, "SHIFT_JIS"],
[0xE0, "SHIFT_JIS"],
[0x0100, "ISO-8859-9"],
[620, "TIS-620"],
[0xD800, "UTF-8"],
[0xDBFF, "UTF-8"],
[0xDC00, "UTF-8"],
[0xDFFF, "UTF-8"],
[0xD800, "UTF-16"],
[0xDBFF, "UTF-16"],
[0xDC00, "UTF-16"],
[0xDFFF, "UTF-16"],
].each do |integer, encoding_name|
lambda { integer.chr(encoding_name) }.should raise_error(RangeError)
end
end
end
|