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58 lines
2.1 KiB
Ruby
58 lines
2.1 KiB
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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describe "Array#+" do
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it "concatenates two arrays" do
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([ 1, 2, 3 ] + [ 3, 4, 5 ]).should == [1, 2, 3, 3, 4, 5]
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([ 1, 2, 3 ] + []).should == [1, 2, 3]
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([] + [ 1, 2, 3 ]).should == [1, 2, 3]
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([] + []).should == []
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end
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it "can concatenate an array with itself" do
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ary = [1, 2, 3]
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(ary + ary).should == [1, 2, 3, 1, 2, 3]
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end
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it "tries to convert the passed argument to an Array using #to_ary" do
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obj = mock('["x", "y"]')
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obj.should_receive(:to_ary).and_return(["x", "y"])
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([1, 2, 3] + obj).should == [1, 2, 3, "x", "y"]
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end
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it "properly handles recursive arrays" do
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empty = ArraySpecs.empty_recursive_array
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(empty + empty).should == [empty, empty]
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array = ArraySpecs.recursive_array
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(empty + array).should == [empty, 1, 'two', 3.0, array, array, array, array, array]
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(array + array).should == [
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1, 'two', 3.0, array, array, array, array, array,
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1, 'two', 3.0, array, array, array, array, array]
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end
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it "does return subclass instances with Array subclasses" do
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(ArraySpecs::MyArray[1, 2, 3] + []).should be_an_instance_of(Array)
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(ArraySpecs::MyArray[1, 2, 3] + ArraySpecs::MyArray[]).should be_an_instance_of(Array)
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([1, 2, 3] + ArraySpecs::MyArray[]).should be_an_instance_of(Array)
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end
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it "does not call to_ary on array subclasses" do
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([5, 6] + ArraySpecs::ToAryArray[1, 2]).should == [5, 6, 1, 2]
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end
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it "does not get infected even if an original array is tainted" do
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([1, 2] + [3, 4]).tainted?.should be_false
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([1, 2].taint + [3, 4]).tainted?.should be_false
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([1, 2] + [3, 4].taint).tainted?.should be_false
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([1, 2].taint + [3, 4].taint).tainted?.should be_false
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end
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it "does not infected even if an original array is untrusted" do
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([1, 2] + [3, 4]).untrusted?.should be_false
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([1, 2].untrust + [3, 4]).untrusted?.should be_false
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([1, 2] + [3, 4].untrust).untrusted?.should be_false
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([1, 2].untrust + [3, 4].untrust).untrusted?.should be_false
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end
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end
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