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
|
require "spec_helper"
require "hamster/vector"
describe Hamster::Vector do
describe "#take" do
[
[[], 10, []],
[["A"], 10, ["A"]],
[%w[A B C], 0, []],
[%w[A B C], 2, %w[A B]],
[(1..32), 1, [1]],
[(1..33), 32, (1..32)],
[(1..100), 40, (1..40)]
].each do |values, number, expected|
describe "#{number} from #{values.inspect}" do
let(:vector) { V[*values] }
it "preserves the original" do
vector.take(number)
vector.should eql(V[*values])
end
it "returns #{expected.inspect}" do
vector.take(number).should eql(V[*expected])
end
end
end
context "when number of elements specified is identical to size" do
let(:vector) { V[1, 2, 3, 4, 5, 6] }
it "returns self" do
vector.take(vector.size).should be(vector)
end
end
context "when number of elements specified is bigger than size" do
let(:vector) { V[1, 2, 3, 4, 5, 6] }
it "returns self" do
vector.take(vector.size + 1).should be(vector)
end
end
end
end
|
