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require 'spec_helper'
describe Immutable::Set do
[:superset?, :>=].each do |method|
describe "##{method}" do
[
[[], [], true],
[['A'], [], true],
[[], ['A'], false],
[['A'], ['A'], true],
[%w[A B C], ['B'], true],
[['B'], %w[A B C], false],
[%w[A B C], %w[A C], true],
[%w[A C], %w[A B C], false],
[%w[A B C], %w[A B C], true],
[%w[A B C], %w[A B C D], false],
[%w[A B C D], %w[A B C], true],
].each do |a, b, expected|
describe "for #{a.inspect} and #{b.inspect}" do
it "returns #{expected}" do
S[*a].send(method, S[*b]).should == expected
end
end
end
end
end
[:proper_superset?, :>].each do |method|
describe "##{method}" do
[
[[], [], false],
[['A'], [], true],
[[], ['A'], false],
[['A'], ['A'], false],
[%w[A B C], ['B'], true],
[['B'], %w[A B C], false],
[%w[A B C], %w[A C], true],
[%w[A C], %w[A B C], false],
[%w[A B C], %w[A B C], false],
[%w[A B C], %w[A B C D], false],
[%w[A B C D], %w[A B C], true],
].each do |a, b, expected|
describe "for #{a.inspect} and #{b.inspect}" do
it "returns #{expected}" do
S[*a].send(method, S[*b]).should == expected
end
end
end
end
end
end
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