mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
46 lines
1.2 KiB
Ruby
46 lines
1.2 KiB
Ruby
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
|