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Contents
require File.expand_path('../../../spec_helper', __FILE__)
describe "Hash" do
it "includes Enumerable" do
hash_class.include?(Enumerable).should == true
end
end
describe "Hash#hash" do
# prior to 1.8.7, there were no sensible Hash#hash defined at all
ruby_version_is "1.8.7" do
ruby_bug "#", "1.8.7.10" do
it "returns a value which doesn't depend on the hash order" do
new_hash(0=>2, 11=>1).hash.should == new_hash(11=>1, 0=>2).hash
end
end
end
it "generates a hash for recursive hash structures" do
h = new_hash
h[:a] = h
(h.hash == h[:a].hash).should == true
end
ruby_bug "redmine #1852", "1.9.1" do
it "returns the same hash for recursive hashes" do
h = {} ; h[:x] = h
h.hash.should == {:x => h}.hash
h.hash.should == {:x => {:x => h}}.hash
# This is because h.eql?(:x => h)
# Remember that if two objects are eql?
# then the need to have the same hash.
# Check the Hash#eql? specs!
end
it "returns the same hash for recursive hashes through arrays" do
h = {} ; rec = [h] ; h[:x] = rec
h.hash.should == {:x => rec}.hash
h.hash.should == {:x => [h]}.hash
# Like above, because h.eql?(:x => [h])
end
end
ruby_version_is "" .. "1.8.6" do
it "computes recursive hash keys with identical hashes" do
h = new_hash
h[h] = h
(h.hash == h[h].hash).should == true
end
end
end
Version data entries
52 entries across 52 versions & 2 rubygems