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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/classes', __FILE__)
describe "Array#push" do
it "appends the arguments to the array" do
a = [ "a", "b", "c" ]
a.push("d", "e", "f").should equal(a)
a.push().should == ["a", "b", "c", "d", "e", "f"]
a.push(5)
a.should == ["a", "b", "c", "d", "e", "f", 5]
end
it "isn't confused by previous shift" do
a = [ "a", "b", "c" ]
a.shift
a.push("foo")
a.should == ["b", "c", "foo"]
end
it "properly handles recursive arrays" do
empty = ArraySpecs.empty_recursive_array
empty.push(:last).should == [empty, :last]
array = ArraySpecs.recursive_array
array.push(:last).should == [1, 'two', 3.0, array, array, array, array, array, :last]
end
ruby_version_is "" ... "1.9" do
it "raises a TypeError on a frozen array if modification takes place" do
lambda { ArraySpecs.frozen_array.push(1) }.should raise_error(TypeError)
end
it "does not raise on a frozen array if no modification is made" do
ArraySpecs.frozen_array.push.should == [1, 2, 3]
end
end
ruby_version_is "1.9" do
it "raises a RuntimeError on a frozen array" do
lambda { ArraySpecs.frozen_array.push(1) }.should raise_error(RuntimeError)
lambda { ArraySpecs.frozen_array.push }.should raise_error(RuntimeError)
end
end
end
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