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Contents
require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')
require 'hamster/list'
describe Hamster::List do
[:any?, :exist?, :exists?].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.send(method) { false } }.should_not raise_error
end
end
describe "when empty" do
before do
@list = Hamster.list
end
it "with a block returns false" do
@list.send(method) {}.should == false
end
it "with no block returns false" do
@list.send(method).should == false
end
end
describe "when not empty" do
describe "with a block" do
before do
@list = Hamster.list("A", "B", "C", nil)
end
["A", "B", "C", nil].each do |value|
it "returns true if the block ever returns true (#{value.inspect})" do
@list.send(method) { |item| item == value }.should == true
end
end
it "returns false if the block always returns false" do
@list.send(method) { |item| item == "D" }.should == false
end
end
describe "with no block" do
it "returns true if any value is truthy" do
Hamster.list(nil, false, "A", true).send(method).should == true
end
it "returns false if all values are falsey" do
Hamster.list(nil, false).send(method).should == false
end
end
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems