require_relative '../../spec_helper' require_relative 'fixtures/classes' describe "Hash#default" do it "returns the default value" do h = Hash.new(5) h.default.should == 5 h.default(4).should == 5 {}.default.should == nil {}.default(4).should == nil end it "uses the default proc to compute a default value, passing given key" do h = Hash.new { |*args| args } h.default(nil).should == [h, nil] h.default(5).should == [h, 5] end it "calls default proc with nil arg if passed a default proc but no arg" do h = Hash.new { |*args| args } h.default.should == nil end end describe "Hash#default=" do it "sets the default value" do h = {} h.default = 99 h.default.should == 99 end it "unsets the default proc" do [99, nil, -> { 6 }].each do |default| h = Hash.new { 5 } h.default_proc.should_not == nil h.default = default h.default.should == default h.default_proc.should == nil end end it "raises a FrozenError if called on a frozen instance" do -> { HashSpecs.frozen_hash.default = nil }.should raise_error(FrozenError) -> { HashSpecs.empty_frozen_hash.default = nil }.should raise_error(FrozenError) end end