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require "spec_helper"
require "hamster/vector"
describe Hamster::Vector do
describe "#each" do
describe "with no block" do
let(:vector) { V["A", "B", "C"] }
it "returns an Enumerator" do
vector.each.class.should be(Enumerator)
vector.each.to_a.should == vector
end
end
[31, 32, 33, 1023, 1024, 1025].each do |size|
context "on a #{size}-item vector" do
describe "with a block" do
let(:vector) { V.new(1..size) }
it "returns self" do
items = []
vector.each { |item| items << item }.should be(vector)
end
it "yields all the items" do
items = []
vector.each { |item| items << item }
items.should == (1..size).to_a
end
it "iterates over the items in order" do
vector.each.first.should == 1
vector.each.to_a.last.should == size
end
end
end
end
context "on an empty vector" do
it "doesn't yield anything" do
V.empty.each { fail }
end
end
end
end
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