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require File.expand_path('../../../spec_helper', __FILE__)
describe "Hash#any?" do
describe 'with no block given' do
it "checks if there are any members of a Hash" do
empty_hash = {}
empty_hash.any?.should == false
hash_with_members = { 'key' => 'value' }
hash_with_members.any?.should == true
end
end
describe 'with a block given' do
it 'is false if the hash is empty' do
empty_hash = {}
empty_hash.any? {|k,v| 1 == 1 }.should == false
end
it 'is true if the block returns true for any member of the hash' do
hash_with_members = { 'a' => false, 'b' => false, 'c' => true, 'd' => false }
hash_with_members.any? {|k,v| v == true}.should == true
end
it 'is false if the block returns false for all members of the hash' do
hash_with_members = { 'a' => false, 'b' => false, 'c' => true, 'd' => false }
hash_with_members.any? {|k,v| v == 42}.should == false
end
end
end
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