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Array#new_range fills unassigned slots with nil. Fixes #3634.
This method needs to be replaced with a Mirror method so it is not polluting the Array namespace.
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Original file line number | Diff line number | Diff line change |
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require File.expand_path('../../../spec_helper', __FILE__) | ||
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describe "Array#new_range" do | ||
it "returns an Array of length specified by the second parameter" do | ||
[].new_range(0, 4).length.should == 4 | ||
end | ||
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it "returns an Array with a subsequence contained in the original Array" do | ||
[1, 2, 3, 4].new_range(1, 3).should == [2, 3, 4] | ||
end | ||
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it "returns an Arary with a partial subsequence when the range exceeds the Array size" do | ||
ary = [1, 2, 3].new_range(1, 4) | ||
ary[0].should == 2 | ||
ary[1].should == 3 | ||
end | ||
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it "initializes elements outside the original Array to nil" do | ||
[1, 2, 3].new_range(1, 4).should == [2, 3, nil, nil] | ||
end | ||
end |