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Contents
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/../../spec_helper'
require File.dirname(File.join(__rhoGetCurrentDir(), __FILE__)) + '/fixtures/classes'
describe "Hash#default_proc" do
it "returns the block passed to Hash.new" do
h = new_hash { |i| 'Paris' }
p = h.default_proc
p.call(1).should == 'Paris'
end
it "returns nil if no block was passed to proc" do
new_hash.default_proc.should == nil
end
end
describe "Hash#default_proc=" do
ruby_version_is "1.9" do
it "replaces the block passed to Hash.new" do
h = new_hash { |i| 'Paris' }
h.default_proc = Proc.new { 'Montreal' }
p = h.default_proc
p.call(1).should == 'Montreal'
end
it "uses :to_proc on its argument" do
h = new_hash { |i| 'Paris' }
obj = mock('to_proc')
obj.should_receive(:to_proc).and_return(Proc.new { 'Montreal' })
(h.default_proc = obj).should equal(obj)
h[:cool_city].should == 'Montreal'
end
it "overrides the static default" do
h = new_hash(42)
h.default_proc = Proc.new { 6 }
h.default.should be_nil
h.default_proc.call.should == 6
end
it "raise an error if passed stuff not convertible to procs" do
lambda{new_hash.default_proc = nil}.should raise_error(TypeError)
lambda{new_hash.default_proc = 42}.should raise_error(TypeError)
end
end
end
Version data entries
83 entries across 83 versions & 1 rubygems