git_stats/spec/hash_extension_spec.rb

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# -*- encoding : utf-8 -*-
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require 'spec_helper'
describe Hash do
context 'to_key_indexed_array' do
it 'should convert hash to array using keys as indexes' do
hash = {1 => 'x', 2 => 1, 5 => 'a'}
hash.to_key_indexed_array.should == [nil, 'x', 1, nil, nil, 'a']
end
it 'should throw exception if not all of the keys are numbers' do
hash = {1 => 'x', 'b' => 2}
expect { hash.to_key_indexed_array }.to raise_error(ArgumentError)
end
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context 'should take optional min_size and default parameters' do
let(:hash) { {1 => 'x', 2 => 1, 5 => 'a'} }
it 'should fill array with defaults up to min_size' do
hash.to_key_indexed_array(min_size: 8, default: 0).should == [0, 'x', 1, 0, 0, 'a', 0, 0]
end
it 'should use default value where key is not in hash' do
hash.to_key_indexed_array(min_size: 2, default: 0).should == [0, 'x', 1, 0, 0, 'a']
end
end
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end
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end