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
|
require_relative '../../spec_helper'
describe "Integer#digits" do
it "returns an array of place values in base-10 by default" do
12345.digits.should == [5,4,3,2,1]
end
it "returns digits by place value of a given radix" do
12345.digits(7).should == [4,6,6,0,5]
end
it "converts the radix with #to_int" do
12345.digits(mock_int(2)).should == [1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1]
end
it "returns [0] when called on 0, regardless of base" do
0.digits.should == [0]
0.digits(7).should == [0]
end
it "raises ArgumentError when calling with a radix less than 2" do
-> { 12345.digits(1) }.should raise_error(ArgumentError)
end
it "raises ArgumentError when calling with a negative radix" do
-> { 12345.digits(-2) }.should raise_error(ArgumentError)
end
it "raises Math::DomainError when calling digits on a negative number" do
-> { -12345.digits(7) }.should raise_error(Math::DomainError)
end
end
|
