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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "Struct#[]=" do
it "assigns the passed value" do
car = StructClasses::Car.new('Ford', 'Ranger')
car[:model] = 'Escape'
car[:model].should == 'Escape'
car['model'] = 'Fusion'
car[:model].should == 'Fusion'
car[1] = 'Excursion'
car[:model].should == 'Excursion'
car[-1] = '2000-2005'
car[:year].should == '2000-2005'
end
it "fails when trying to assign attributes which don't exist" do
car = StructClasses::Car.new('Ford', 'Ranger')
-> { car[:something] = true }.should raise_error(NameError)
-> { car[3] = true }.should raise_error(IndexError)
-> { car[-4] = true }.should raise_error(IndexError)
-> { car[Object.new] = true }.should raise_error(TypeError)
end
it "raises a FrozenError on a frozen struct" do
car = StructClasses::Car.new('Ford', 'Ranger')
car.freeze
-> { car[:model] = 'Escape' }.should raise_error(FrozenError)
end
end
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