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Handle multi dimentional arrays in path decoder #83

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Handle multi dimentional arrays in path decoder #83

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3 changes: 2 additions & 1 deletion lib/hashdiff/util.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,8 @@ def self.decode_property_path(path, delimiter = '.')
path.split(delimiter).inject([]) do |memo, part|
if part =~ /^(.*)\[(\d+)\]$/
if !Regexp.last_match(1).empty?
memo + [Regexp.last_match(1), Regexp.last_match(2).to_i]
inner_decode = self.decode_property_path(Regexp.last_match(1), delimiter)
memo + [*inner_decode, Regexp.last_match(2).to_i]
else
memo + [Regexp.last_match(2).to_i]
end
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10 changes: 10 additions & 0 deletions spec/hashdiff/util_spec.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -113,4 +113,14 @@
expect(described_class.comparable?(1, {})).to be false
end
end

describe '.decode_property_path' do
it 'decodes according to doc' do
expect(described_class.decode_property_path('a.b[3].c')).to eq(['a', 'b', 3, 'c'])
end

it 'decodes nested array' do
expect(described_class.decode_property_path('a[1][2]')).to eq(['a', 1, 2])
end
end
end