require 'spec_helper' describe 'dig44' do let(:data) do { 'a' => { 'g' => '2', 'e' => [ 'f0', 'f1', { 'x' => { 'y' => 'z', }, }, 'f3', ], }, 'b' => true, 'c' => false, 'd' => '1', 'e' => :undef, 'f' => nil, } end let(:utf8_data) do { 'ẵ' => { 'в' => [ '©', 'ĝ', 'に', ], }, } end context 'with single values' do it 'exists' do is_expected.not_to be_nil end it 'requires two arguments' do is_expected.to run.with_params.and_raise_error(ArgumentError) end it 'fails if the data is not a structure' do is_expected.to run.with_params('test', []).and_raise_error(Puppet::Error) end it 'fails if the path is not an array' do is_expected.to run.with_params({}, '').and_raise_error(Puppet::Error) end it 'returns the value if the value is string' do is_expected.to run.with_params(data, ['d'], 'default').and_return('1') end it 'returns true if the value is true' do is_expected.to run.with_params(data, ['b'], 'default').and_return(true) end it 'returns false if the value is false' do is_expected.to run.with_params(data, ['c'], 'default').and_return(false) end it 'returns the default if the value is nil' do is_expected.to run.with_params(data, ['f'], 'default').and_return('default') end it 'returns the default if the value is :undef (same as nil)' do is_expected.to run.with_params(data, ['e'], 'default').and_return('default') end it 'returns the default if the path is not found' do is_expected.to run.with_params(data, ['missing'], 'default').and_return('default') end end context 'with structured values' do it 'is able to extract a deeply nested hash value' do is_expected.to run.with_params(data, %w[a g], 'default').and_return('2') end it 'returns the default value if the path is too long' do is_expected.to run.with_params(data, %w[a g c d], 'default').and_return('default') end it 'supports an array index (number) in the path' do is_expected.to run.with_params(data, ['a', 'e', 1], 'default').and_return('f1') end it 'supports an array index (string) in the path' do is_expected.to run.with_params(data, %w[a e 1], 'default').and_return('f1') end it 'returns the default value if an array index is not a number' do is_expected.to run.with_params(data, %w[a b c], 'default').and_return('default') end it 'returns the default value if and index is out of array length' do is_expected.to run.with_params(data, %w[a e 5], 'default').and_return('default') end it 'is able to path though both arrays and hashes' do is_expected.to run.with_params(data, %w[a e 2 x y], 'default').and_return('z') end it 'returns "nil" if value is not found and no default value is provided' do is_expected.to run.with_params(data, %w[a 1]).and_return(nil) end end context 'with internationalization (i18N) values' do it 'is able to return a unicode character' do is_expected.to run.with_params(utf8_data, ['ẵ', 'в', 0]).and_return('©') end it 'is able to return a utf8 character' do is_expected.to run.with_params(utf8_data, ['ẵ', 'в', 1]).and_return('ĝ') end it 'is able to return a double byte character' do is_expected.to run.with_params(utf8_data, ['ẵ', 'в', 2]).and_return('に') end end end