Sha256: 7e807c8ec54380c4858be5a8ced5a1b3a43942d4e41191fbdde93858623e4481
Contents?: true
Size: 1.89 KB
Versions: 4
Compression:
Stored size: 1.89 KB
Contents
require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')
require 'hamster/list'
describe Hamster::List do
[:reduce, :inject, :fold].each do |method|
describe "##{method}" do
describe "on a really big list" do
before do
@list = Hamster.interval(0, STACK_OVERFLOW_DEPTH)
end
it "doesn't run out of stack" do
lambda { @list.reduce(&:+) }.should_not raise_error
end
end
[
[[], 10, 10],
[[1], 10, 9],
[[1, 2, 3], 10, 4],
].each do |values, initial, expected|
describe "on #{values.inspect}" do
before do
@list = Hamster.list(*values)
end
describe "with an initial value of #{initial}" do
describe "and a block" do
it "returns #{expected.inspect}" do
@list.send(method, initial) { |memo, item| memo - item }.should == expected
end
end
describe "and no block" do
it "returns the memo" do
@list.send(method, initial).should == initial
end
end
end
end
end
[
[[], nil],
[[1], 1],
[[1, 2, 3], -4],
].each do |values, expected|
describe "on #{values.inspect}" do
before do
@list = Hamster.list(*values)
end
describe "with no initial value" do
describe "and a block" do
it "returns #{expected.inspect}" do
@list.send(method) { |memo, item| memo - item }.should == expected
end
end
describe "and no block" do
it "returns the first value in the list" do
@list.send(method).should == values.first
end
end
end
end
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems