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Contents
require File.expand_path("#{File.dirname(__FILE__)}/../../spec_helper")
module RR
describe HashWithObjectIdKey do
describe "#[] and #[]=" do
it "stores object via object id" do
hash = HashWithObjectIdKey.new
array_1 = []
hash[array_1] = 1
array_2 = []
hash[array_2] = 2
hash[array_1].should_not == hash[array_2]
end
it "stores the passed in object" do
hash = HashWithObjectIdKey.new
obj = Object.new
hash[obj] = 1
hash.instance_eval {@keys}.should == {obj.__id__ => obj}
end
end
describe "#each" do
it "iterates through the items in the hash" do
hash = HashWithObjectIdKey.new
hash['one'] = 1
hash['two'] = 2
keys = []
values = []
hash.each do |key, value|
keys << key
values << value
end
keys.sort.should == ['one', 'two']
values.sort.should == [1, 2]
end
end
describe "#delete" do
before do
@hash = HashWithObjectIdKey.new
@key = Object.new
@hash[@key] = 1
end
it "removes the object from the hash" do
@hash.delete(@key)
@hash[@key].should be_nil
end
it "removes the object from the keys hash" do
@hash.delete(@key)
@hash.instance_eval {@keys}.should == {}
end
end
describe "#keys" do
before do
@hash = HashWithObjectIdKey.new
@key = Object.new
@hash[@key] = 1
end
it "returns an array of the keys" do
@hash.keys.should == [@key]
end
end
describe "#include?" do
before do
@hash = HashWithObjectIdKey.new
@key = Object.new
@hash[@key] = 1
end
it "returns true when the key is in the Hash" do
@hash.include?(@key).should be_true
end
it "returns false when the key is not in the Hash" do
@hash.include?(Object.new).should be_false
end
end
end
end
Version data entries
30 entries across 26 versions & 5 rubygems