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
|
require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes.rb', __FILE__)
# TODO: Move actual results to String#to_int() and spec in terms of it
describe "String#hex" do
it "treats leading characters of self as a string of hex digits" do
"0a".hex.should == 10
"0o".hex.should == 0
"0x".hex.should == 0
"A_BAD_BABE".hex.should == 0xABADBABE
"0b1010".hex.should == "b1010".hex
"0d500".hex.should == "d500".hex
"abcdefG".hex.should == 0xabcdef
end
ruby_version_is "" ... "1.8.7" do
it "accepts a sequence of underscores as part of a number" do
"a__b".hex.should == 0xab
"a____b".hex.should == 0xab
"a___f".hex.should == 0xaf
end
it "accepts a sequence of underscores in front of string as part of a number" do
"_a".hex.should == 0xa
"___b".hex.should == 0xb
"___0xc".hex.should == 0xc
end
end
ruby_version_is "1.8.7" do
it "does not accept a sequence of underscores as part of a number" do
"a__b".hex.should == 0xa
"a____b".hex.should == 0xa
"a___f".hex.should == 0xa
end
end
it "takes an optional sign" do
"-1234".hex.should == -4660
"+1234".hex.should == 4660
end
it "takes an optional 0x" do
"0x0a".hex.should == 10
"0a".hex.should == 10
end
it "requires that the sign is in front of the 0x if present" do
"-0x1".hex.should == -1
"0x-1".hex.should == 0
end
it "returns 0 on error" do
"".hex.should == 0
"+-5".hex.should == 0
"wombat".hex.should == 0
"0x0x42".hex.should == 0
end
ruby_version_is "1.9" do
it "returns 0 if sequence begins with underscore" do
"_a".hex.should == 0
"___b".hex.should == 0
"___0xc".hex.should == 0
end
end
end
|
