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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Array#<<" do
it "pushes the object onto the end of the array" do
([ 1, 2 ] << "c" << "d" << [ 3, 4 ]).should == [1, 2, "c", "d", [3, 4]]
end
it "returns self to allow chaining" do
a = []
b = a
(a << 1).should equal(b)
(a << 2 << 3).should equal(b)
end
it "correctly resizes the Array" do
a = []
a.size.should == 0
a << :foo
a.size.should == 1
a << :bar << :baz
a.size.should == 3
a = [1, 2, 3]
a.shift
a.shift
a.shift
a << :foo
a.should == [:foo]
end
it "raises a RuntimeError on a frozen array" do
lambda { ArraySpecs.frozen_array << 5 }.should raise_error(RuntimeError)
end
end
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