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24 lines
616 B
Ruby
24 lines
616 B
Ruby
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require File.expand_path('../../../spec_helper', __FILE__)
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require 'set'
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describe "Set#flatten_merge" do
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it "is protected" do
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Set.should have_protected_instance_method("flatten_merge")
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end
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it "flattens the passed Set and merges it into self" do
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set1 = Set[1, 2]
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set2 = Set[3, 4, Set[5, 6]]
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set1.send(:flatten_merge, set2).should == Set[1, 2, 3, 4, 5, 6]
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end
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it "raises an ArgumentError when trying to flatten a recursive Set" do
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set1 = Set[1, 2, 3]
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set2 = Set[5, 6, 7]
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set2 << set2
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lambda { set1.send(:flatten_merge, set2) }.should raise_error(ArgumentError)
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end
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end
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