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require "spec_helper"
require "hamster/vector"
describe Hamster::Vector do
describe "#unshift" do
[
[[], "A", ["A"]],
[["A"], "B", %w[B A]],
[["A"], "A", %w[A A]],
[%w[A B C], "D", %w[D A B C]],
[1..31, 0, 0..31],
[1..32, 0, 0..32],
[1..33, 0, 0..33]
].each do |values, new_value, expected|
context "on #{values.inspect} with #{new_value.inspect}" do
let(:vector) { V[*values] }
it "preserves the original" do
vector.unshift(new_value)
vector.should eql(V[*values])
end
it "returns #{expected.inspect}" do
vector.unshift(new_value).should eql(V[*expected])
end
end
end
end
end
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