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
|
require_relative '../spec_helper'
describe "A number literal" do
it "can be a sequence of decimal digits" do
435.should == 435
end
it "can have '_' characters between digits" do
4_3_5_7.should == 4357
end
it "cannot have a leading underscore" do
-> { eval("_4_2") }.should raise_error(NameError)
end
it "can have a decimal point" do
4.35.should == 4.35
end
it "must have a digit before the decimal point" do
0.75.should == 0.75
-> { eval(".75") }.should raise_error(SyntaxError)
-> { eval("-.75") }.should raise_error(SyntaxError)
end
it "can have an exponent" do
1.2e-3.should == 0.0012
end
it "can be a sequence of hexadecimal digits with a leading '0x'" do
0xffff.should == 65535
end
it "can be a sequence of binary digits with a leading '0x'" do
0b01011.should == 11
end
it "can be a sequence of octal digits with a leading '0'" do
0377.should == 255
end
it "can be an integer literal with trailing 'r' to represent a Rational" do
eval('3r').should == Rational(3, 1)
eval('-3r').should == Rational(-3, 1)
end
it "can be a float literal with trailing 'r' to represent a Rational" do
eval('0.0174532925199432957r').should == Rational(174532925199432957, 10000000000000000000)
end
it "can be an bignum literal with trailing 'r' to represent a Rational" do
eval('1111111111111111111111111111111111111111111111r').should == Rational(1111111111111111111111111111111111111111111111, 1)
eval('-1111111111111111111111111111111111111111111111r').should == Rational(-1111111111111111111111111111111111111111111111, 1)
end
it "can be a decimal literal with trailing 'r' to represent a Rational" do
eval('0.3r').should == Rational(3, 10)
eval('-0.3r').should == Rational(-3, 10)
end
it "can be a hexadecimal literal with trailing 'r' to represent a Rational" do
eval('0xffr').should == Rational(255, 1)
eval('-0xffr').should == Rational(-255, 1)
end
it "can be an octal literal with trailing 'r' to represent a Rational" do
eval('042r').should == Rational(34, 1)
eval('-042r').should == Rational(-34, 1)
end
it "can be a binary literal with trailing 'r' to represent a Rational" do
eval('0b1111r').should == Rational(15, 1)
eval('-0b1111r').should == Rational(-15, 1)
end
it "can be an integer literal with trailing 'i' to represent a Complex" do
eval('5i').should == Complex(0, 5)
eval('-5i').should == Complex(0, -5)
end
it "can be a decimal literal with trailing 'i' to represent a Complex" do
eval('0.6i').should == Complex(0, 0.6)
eval('-0.6i').should == Complex(0, -0.6)
end
it "can be a hexadecimal literal with trailing 'i' to represent a Complex" do
eval('0xffi').should == Complex(0, 255)
eval('-0xffi').should == Complex(0, -255)
end
it "can be a octal literal with trailing 'i' to represent a Complex" do
eval("042i").should == Complex(0, 34)
eval("-042i").should == Complex(0, -34)
end
it "can be a binary literal with trailing 'i' to represent a Complex" do
eval('0b1110i').should == Complex(0, 14)
eval('-0b1110i').should == Complex(0, -14)
end
end
|
